{"id": "ICSA-19-050-03", "bulletinFamily": "info", "title": "Horner Automation Cscape", "description": "## 1\\. EXECUTIVE SUMMARY\n\n * **CVSS v3 7.8**\n\n * **ATTENTION:** Low skill level to exploit\n * **Vendor:** Horner Automation\n * **Equipment:** Cscape\n * **Vulnerability:** Improper Input Validation\n\n## 2\\. RISK EVALUATION\n\nSuccessful exploitation of this vulnerability could crash the device being accessed, which may allow the attacker to read confidential information and remotely execute arbitrary code.\n\n## 3\\. TECHNICAL DETAILS\n\n### 3.1 AFFECTED PRODUCTS\n\nThe following versions of Cscape, a control system application programming software, are affected:\n\n * Cscape 9.80 SP4 and prior.\n\n### 3.2 VULNERABILITY OVERVIEW\n\n### 3.2.1 [ IMPROPER INPUT VALIDATION CWE-20](<https://cwe.mitre.org/data/definitions/20.html>)\n\nAn improper input validation vulnerability may be exploited by processing specially crafted POC files. This may allow an attacker to read confidential information and remotely execute arbitrary code.\n\n[CVE-2019-6555](<http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6555>) has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is [(AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)](<https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H>).\n\n### 3.3 BACKGROUND\n\n * **CRITICAL INFRASTRUCTURE SECTORS:** Critical Manufacturing\n * **COUNTRIES/AREAS DEPLOYED:** Worldwide\n * **COMPANY HEADQUARTERS LOCATION:** United States\n\n### 3.4 RESEARCHER\n\nAnonymous working with Trend Micro\u2019s Zero Day Initiative reported this vulnerability to NCCIC.\n\n## 4\\. MITIGATIONS\n\nHorner Automation recommends affected users update to the latest version of Cscape (Version 9.90), which is available for download at the following links: \n[http://www.heapg.com](<http://www.heapg.com/>) \n[http://www.horner-apg.com](<http://www.horner-apg.com/>) (outside of the Americas)\n\nUsers with questions regarding specific Cscape installations should contact a local Horner Automation service support team at the following email addresses or telephone numbers: \n[techsppt@heapg.com](<http://mailto:techsppt@heapg.com>) or +1-317-916-4274 \n[tech.support@hornerirl.ie](<http://mailto:tech.support@hornerirl.ie>) or +353-(0)21-4321266 ext. 202 (outside of the Americas)\n\nNCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:\n\n * Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet.\n * Locate control system networks and remote devices behind firewalls, and isolate them from the business network.\n * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.\n\nNCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. \n \nNCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.\n\nAdditional mitigation guidance and recommended practices are publicly available on the ICS-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. \n \nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.\n\nNo known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.\n\n## \nContact Information\n\nFor any questions related to this report, please contact the CISA at: \n \nEmail: [CISAservicedesk@cisa.dhs.gov](<mailto:cisaservicedesk@cisa.dhs.gov>) \nToll Free: 1-888-282-0870\n\nFor industrial control systems cybersecurity information: https://us-cert.cisa.gov/ics \nor incident reporting: https://us-cert.cisa.gov/report\n\nCISA continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product.\n\nThis product is provided subject to this Notification and this [Privacy &amp; Use](<https://www.dhs.gov/privacy-policy>) policy.\n\n**Please share your thoughts.**\n\nWe recently updated our anonymous [product survey](<https://surveymonkey.com/r/G8STDRY?product=https://us-cert.cisa.gov/ics/advisories/ICSA-19-050-03>); we'd welcome your feedback.\n", "published": "2019-02-19T00:00:00", "modified": "2019-02-19T00:00:00", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "href": "https://www.us-cert.gov//ics/advisories/ICSA-19-050-03", "reporter": "Industrial Control Systems Cyber Emergency Response Team", "references": ["https://twitter.com/share?url=https%3A%2F%2Fus-cert.cisa.gov%2Fics%2Fadvisories%2FICSA-19-050-03", "https://www.dhs.gov/homeland-security-no-fear-act-reporting", "https://www.dhs.gov/plug-information", "https://www.dhs.gov/privacy-policy", "https://www.whitehouse.gov/", "http://www.addthis.com/bookmark.php?url=https%3A%2F%2Fus-cert.cisa.gov%2Fics%2Fadvisories%2FICSA-19-050-03", "https://www.facebook.com/sharer.php?u=https%3A%2F%2Fus-cert.cisa.gov%2Fics%2Fadvisories%2FICSA-19-050-03", "https://cwe.mitre.org/data/definitions/20.html", "http://mailto:techsppt@heapg.com", "https://www.dhs.gov/plain-writing-dhs", "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6555", "https://www.oig.dhs.gov/", "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "https://www.dhs.gov/freedom-information-act-foia", "http://twitter.com/icscert", "https://surveymonkey.com/r/G8STDRY?product=https://us-cert.cisa.gov/ics/advisories/ICSA-19-050-03", "https://www.dhs.gov", "http://www.heapg.com/", "http://mailto:tech.support@hornerirl.ie", "https://www.usa.gov/", "https://www.dhs.gov/", "http://www.horner-apg.com/"], "cvelist": ["CVE-2019-6555"], "type": "ics", "lastseen": "2020-12-18T03:22:50", "edition": 12, "viewCount": 23, "enchantments": {"dependencies": {"references": [{"type": "cve", "idList": ["CVE-2019-6555"]}, {"type": "zdi", "idList": ["ZDI-19-226", "ZDI-19-227"]}], "modified": "2020-12-18T03:22:50", "rev": 2}, "score": {"value": 6.8, "vector": "NONE", "modified": "2020-12-18T03:22:50", "rev": 2}, "vulnersScore": 6.8}, "scheme": null}

{"cve": [{"lastseen": "2020-12-09T21:41:55", "description": "Cscape, 9.80 SP4 and prior. An improper input validation vulnerability may be exploited by processing specially crafted POC files. This may allow an attacker to read confidential information and remotely execute arbitrary code.", "edition": 7, "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.0"}, "impactScore": 5.9}, "published": "2019-02-28T20:29:00", "title": "CVE-2019-6555", "type": "cve", "cwe": ["CWE-20"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-6555"], "modified": "2019-10-09T23:51:00", "cpe": ["cpe:/a:hornerautomation:cscape:9.80"], "id": "CVE-2019-6555", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-6555", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:a:hornerautomation:cscape:9.80:sp2:*:*:*:*:*:*", "cpe:2.3:a:hornerautomation:cscape:9.80:sp4:*:*:*:*:*:*", "cpe:2.3:a:hornerautomation:cscape:9.80:sp1:*:*:*:*:*:*", "cpe:2.3:a:hornerautomation:cscape:9.80:sp3:*:*:*:*:*:*", "cpe:2.3:a:hornerautomation:cscape:9.80:-:*:*:*:*:*:*"]}], "zdi": [{"lastseen": "2020-06-22T11:41:32", "bulletinFamily": "info", "cvelist": ["CVE-2019-6555"], "description": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Horner Automation Cscape. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of CSP files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process.", "edition": 1, "modified": "2019-06-22T00:00:00", "published": "2019-02-20T00:00:00", "id": "ZDI-19-226", "href": "https://www.zerodayinitiative.com/advisories/ZDI-19-226/", "title": "Horner Automation Cscape CSP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability", "type": "zdi", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2020-06-22T11:41:44", "bulletinFamily": "info", "cvelist": ["CVE-2019-6555"], "description": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Horner Automation Cscape. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the processing of CSP files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process.", "edition": 1, "modified": "2019-06-22T00:00:00", "published": "2019-02-20T00:00:00", "id": "ZDI-19-227", "href": "https://www.zerodayinitiative.com/advisories/ZDI-19-227/", "title": "Horner Automation Cscape CSP File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability", "type": "zdi", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}]}