CVE-2021-37748

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Multiple buffer overflows in the limited configuration shell (/sbin/gs_config) on Grandstream HT801 devices before 1.0.29 allow remote authenticated users to execute arbitrary code as root via a crafted manage_if setting, thus bypassing the intended restrictions of this shell and taking full control of the device. There are default weak credentials that can be used to authenticate."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-10-28T11:11:20.000Z", "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": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/SECFORCE/CVE-2021-37748"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-37748", "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": "Multiple buffer overflows in the limited configuration shell (/sbin/gs_config) on Grandstream HT801 devices before 1.0.29 allow remote authenticated users to execute arbitrary code as root via a crafted manage_if setting, thus bypassing the intended restrictions of this shell and taking full control of the device. There are default weak credentials that can be used to authenticate."}]}, "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": "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/"}, {"name": "https://github.com/SECFORCE/CVE-2021-37748", "refsource": "MISC", "url": "https://github.com/SECFORCE/CVE-2021-37748"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T01:30:07.528Z"}, "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": "https://www.secforce.com/blog/exploiting-grandstream-ht801-ata-cve-2021-37748-cve-2021-37915/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/SECFORCE/CVE-2021-37748"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-37748", "datePublished": "2021-10-28T11:11:20.000Z", "dateReserved": "2021-07-30T00:00:00.000Z", "dateUpdated": "2024-08-04T01:30:07.528Z", "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": "AD354E29-2525-4EAF-98B1-7D862C7A0ACF", "versionEndExcluding": "1.0.29", "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": "Multiple buffer overflows in the limited configuration shell (/sbin/gs_config) on Grandstream HT801 devices before 1.0.29 allow remote authenticated users to execute arbitrary code as root via a crafted manage_if setting, thus bypassing the intended restrictions of this shell and taking full control of the device. There are default weak credentials that can be used to authenticate."}, {"lang": "es", "value": "M\u00faltiples desbordamientos de b\u00fafer en el shell de configuraci\u00f3n limitada (/sbin/gs_config) en los dispositivos Grandstream HT801 versiones anteriores a 1.0.29 permiten a usuarios remotos autenticados ejecutar c\u00f3digo arbitrario como root por medio de una configuraci\u00f3n manage_if dise\u00f1ada, omitiendo as\u00ed las restricciones previstas de este shell y tomando el control total del dispositivo. Se presentan credenciales d\u00e9biles predeterminadas que pueden ser usadas para autenticar"}], "id": "CVE-2021-37748", "lastModified": "2026-06-17T04:01:05.933", "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": "2021-10-28T12:15:08.413", "references": [{"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": ["Third Party Advisory"], "url": "https://github.com/SECFORCE/CVE-2021-37748"}, {"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": ["Product", "Vendor Advisory"], "url": "http://www.grandstream.com/products/gateways-and-atas/analog-telephone-adaptors/product/ht801"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/SECFORCE/CVE-2021-37748"}, {"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": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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