CVE-2021-37915

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-10-28T11:11:28.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801"}, {"tags": ["x_refsource_MISC"], "url": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf"}, {"tags": ["x_refsource_MISC"], "url": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-37915", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801", "refsource": "MISC", "url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801"}, {"name": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf", "refsource": "MISC", "url": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf"}, {"name": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/", "refsource": "MISC", "url": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:30:09.022Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-37915", "datePublished": "2021-10-28T11:11:29.000Z", "dateReserved": "2021-08-02T00:00:00.000Z", "dateUpdated": "2024-08-04T01:30:09.022Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:grandstream:ht801_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "2D52EBCB-68F7-476A-8290-56BA3327D324", "versionEndExcluding": "1.0.29.8", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:grandstream:ht801:-:*:*:*:*:*:*:*", "matchCriteriaId": "1338EDFF-1D52-41E1-9378-7D752E622188", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Se ha detectado un problema en Grandstream HT801 Analog Telephone Adaptor versiones anteriores a 1.0.29.8. Desde el shell de configuraci\u00f3n limitada, es posible establecer la variable maliciosa gdb_debug_server. Como resultado, despu\u00e9s de un reinicio, el dispositivo descarga y ejecuta scripts maliciosos desde un host definido por el atacante"}], "id": "CVE-2021-37915", "lastModified": "2026-06-17T04:01:14.637", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "COMPLETE", "baseScore": 9.0, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-10-28T12:15:08.477", "references": [{"source": "cve@mitre.org", "tags": ["Broken Link"], "url": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf"}, {"source": "cve@mitre.org", "tags": ["Product", "Vendor Advisory"], "url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "http://firmware.grandstream.com/BETA/Release_Note_HT80x_1.0.29.8.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Vendor Advisory"], "url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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