CVE-2021-23000

{"containers": {"cna": {"affected": [{"product": "BIG-IP", "vendor": "n/a", "versions": [{"status": "affected", "version": "13.1.3.4-13.1.3.5, 12.1.5.2"}]}], "descriptions": [{"lang": "en", "value": "On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2, if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system, or the Bad host header value is checked in the AFM HTTP security profile associated with a virtual server, in rare instances, a specific sequence of malicious requests may cause TMM to restart. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."}], "problemTypes": [{"descriptions": [{"description": "DoS", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-03-31T17:26:29.000Z", "orgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "shortName": "f5"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://support.f5.com/csp/article/K34441555"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "f5sirt@f5.com", "ID": "CVE-2021-23000", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "BIG-IP", "version": {"version_data": [{"version_value": "13.1.3.4-13.1.3.5, 12.1.5.2"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2, if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system, or the Bad host header value is checked in the AFM HTTP security profile associated with a virtual server, in rare instances, a specific sequence of malicious requests may cause TMM to restart. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "DoS"}]}]}, "references": {"reference_data": [{"name": "https://support.f5.com/csp/article/K34441555", "refsource": "MISC", "url": "https://support.f5.com/csp/article/K34441555"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:58:26.021Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://support.f5.com/csp/article/K34441555"}]}]}, "cveMetadata": {"assignerOrgId": "9dacffd4-cb11-413f-8451-fbbfd4ddc0ab", "assignerShortName": "f5", "cveId": "CVE-2021-23000", "datePublished": "2021-03-31T17:26:29.000Z", "dateReserved": "2021-01-06T00:00:00.000Z", "dateUpdated": "2024-08-03T18:58:26.021Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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"matchCriteriaId": "79E0719A-0568-4B57-AD43-B70F706B294A", "versionEndExcluding": "13.1.3.6", "versionStartIncluding": "13.1.3.4", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:big-ip_policy_enforcement_manager:12.1.5.2:*:*:*:*:*:*:*", "matchCriteriaId": "6C3F3067-14FF-4AA1-9A9D-FD0BDCB929FC", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:ssl_orchestrator:*:*:*:*:*:*:*:*", "matchCriteriaId": "781AF4EF-1448-4BF4-B7CA-71E84AAE0D6E", "versionEndExcluding": "13.1.3.6", "versionStartIncluding": "13.1.3.4", "vulnerable": true}, {"criteria": "cpe:2.3:a:f5:ssl_orchestrator:12.1.5.2:*:*:*:*:*:*:*", "matchCriteriaId": "3A96D133-AB13-43B6-A1D1-1B7E69D8A989", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "On BIG-IP versions 13.1.3.4-13.1.3.6 and 12.1.5.2, if the tmm.http.rfc.enforcement BigDB key is enabled in a BIG-IP system, or the Bad host header value is checked in the AFM HTTP security profile associated with a virtual server, in rare instances, a specific sequence of malicious requests may cause TMM to restart. Note: Software versions which have reached End of Software Development (EoSD) are not evaluated."}, {"lang": "es", "value": "En BIG-IP versiones 13.1.3.4-13.1.3.6 y 12.1.5.2, si la clave de BigDB tmm.http.rfc.enforcement est\u00e1 habilitada en un sistema BIG-IP, o si el valor del encabezado de host Bad est\u00e1 validado en la seguridad HTTP de AFM asociado con un servidor virtual, en raras ocasiones, una secuencia espec\u00edfica de peticiones maliciosas puede hacer que TMM se reinicie. Nota: No se eval\u00faan las versiones de software que han alcanzado End of Software Development (EoSD)."}], "id": "CVE-2021-23000", "lastModified": "2026-06-17T03:38:11.137", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-03-31T18:15:15.223", "references": [{"source": "f5sirt@f5.com", "tags": ["Vendor Advisory"], "url": "https://support.f5.com/csp/article/K34441555"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://support.f5.com/csp/article/K34441555"}], "sourceIdentifier": "f5sirt@f5.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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