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{"id": "CVE-2021-37915", "vendorId": null, "type": "cve", "bulletinFamily": "NVD", "title": "CVE-2021-37915", "description": "An issue was discovered on the Grandstream HT801 Analog Telephone Adaptor before 1.0.29.8. From the limited configuration shell, it is possible to set the malicious gdb_debug_server variable. As a result, after a reboot, the device downloads and executes malicious scripts from an attacker-defined host.", "published": "2021-10-28T12:15:00", "modified": "2021-11-02T14:50:00", "cvss": {"score": 9.0, "vector": "AV:N/AC:L/Au:S/C:C/I:C/A:C"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 9.0}, "severity": "HIGH", "exploitabilityScore": 8.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37915", "reporter": "cve@mitre.org", "references": ["http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf", "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801", "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"], "cvelist": ["CVE-2021-37915"], "immutableFields": [], "lastseen": "2022-03-23T18:57:30", "viewCount": 17, "enchantments": {"dependencies": {"references": [{"type": "cve", "idList": ["CVE-2021-37748"]}, {"type": "githubexploit", "idList": ["56833434-3209-5A57-BE01-5EE9CB6CC6DC"]}], "rev": 4}, "score": {"value": 4.9, "vector": "NONE"}, "backreferences": {"references": [{"type": "cve", "idList": ["CVE-2021-37748"]}, {"type": "githubexploit", "idList": ["56833434-3209-5A57-BE01-5EE9CB6CC6DC"]}]}, "exploitation": null, "vulnersScore": 4.9}, "_state": {"dependencies": 0}, "_internal": {}, "cna_cvss": {"cna": null, "cvss": {}}, "cpe": [], "cpe23": [], "cwe": ["NVD-CWE-noinfo"], "affectedSoftware": [{"cpeName": "grandstream:ht801_firmware", "version": "1.0.29.8", "operator": "lt", "name": "grandstream ht801 firmware"}], "affectedConfiguration": [{"name": "grandstream ht801", "cpeName": "grandstream:ht801", "version": "-", "operator": "eq"}], "cpeConfiguration": {"CVE_data_version": "4.0", "nodes": [{"operator": "AND", "children": [{"operator": "OR", "children": [], "cpe_match": [{"vulnerable": true, "cpe23Uri": "cpe:2.3:o:grandstream:ht801_firmware:1.0.29.8:*:*:*:*:*:*:*", "versionEndExcluding": "1.0.29.8", "cpe_name": []}]}, {"operator": "OR", "children": [], "cpe_match": [{"vulnerable": false, "cpe23Uri": "cpe:2.3:h:grandstream:ht801:-:*:*:*:*:*:*:*", "cpe_name": []}]}], "cpe_match": []}]}, "extraReferences": [{"url": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf", "name": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf", "refsource": "MISC", "tags": ["Broken Link"]}, {"url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801", "name": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801", "refsource": "MISC", "tags": ["Product", "Vendor Advisory"]}, {"url": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/", "name": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/", "refsource": "MISC", "tags": ["Exploit", "Third Party Advisory"]}]}

{"githubexploit": [{"lastseen": "2022-03-21T13:06:21", "description": "## Exploits for the CVE-2021...", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-10-25T12:16:41", "type": "githubexploit", "title": "Exploit for Out-of-bounds Write in Grandstream Ht801 Firmware", "bulletinFamily": "exploit", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.0, "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "SINGLE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-37748", "CVE-2021-37915"], "modified": "2022-03-21T09:48:51", "id": "56833434-3209-5A57-BE01-5EE9CB6CC6DC", "href": "", "cvss": {"score": 9.0, "vector": "AV:N/AC:L/Au:S/C:C/I:C/A:C"}, "privateArea": 1}]}