CVE-2023-49786

{"id": "CVE-2023-49786", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "published": "2023-12-14T20:15:52.927", "references": [{"url": "http://packetstormsecurity.com/files/176251/Asterisk-20.1.0-Denial-Of-Service.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "security-advisories@github.com"}, {"url": "http://seclists.org/fulldisclosure/2023/Dec/24", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "http://www.openwall.com/lists/oss-security/2023/12/15/7", "tags": ["Exploit", "Mailing List"], "source": "security-advisories@github.com"}, {"url": "https://github.com/EnableSecurity/advisories/tree/master/ES2023-01-asterisk-dtls-hello-race", "tags": ["Exploit"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/commit/d7d7764cb07c8a1872804321302ef93bf62cba05", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-hxj9-xwr8-w8pq", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html", "source": "security-advisories@github.com"}, {"url": "http://packetstormsecurity.com/files/176251/Asterisk-20.1.0-Denial-Of-Service.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://seclists.org/fulldisclosure/2023/Dec/24", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2023/12/15/7", "tags": ["Exploit", "Mailing List"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/EnableSecurity/advisories/tree/master/ES2023-01-asterisk-dtls-hello-race", "tags": ["Exploit"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/asterisk/asterisk/commit/d7d7764cb07c8a1872804321302ef93bf62cba05", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-hxj9-xwr8-w8pq", "tags": ["Exploit", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00019.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-703"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-362"}]}], "descriptions": [{"lang": "en", "value": "Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk prior to versions 18.20.1, 20.5.1, and 21.0.1; as well as certified-asterisk prior to 18.9-cert6; Asterisk is susceptible to a DoS due to a race condition in the hello handshake phase of the DTLS protocol when handling DTLS-SRTP for media setup. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack. Abuse of this vulnerability may lead to a massive Denial of Service on vulnerable Asterisk servers for calls that rely on DTLS-SRTP. Commit d7d7764cb07c8a1872804321302ef93bf62cba05 contains a fix, which is part of versions 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6."}, {"lang": "es", "value": "Asterisk es un conjunto de herramientas de telefon\u00eda y centralita privada de c\u00f3digo abierto. En Asterisk anteriores a las versiones 18.20.1, 20.5.1 y 21.0.1; as\u00ed como certificado-asterisco anterior a 18.9-cert6; Asterisk es susceptible a un DoS debido a una condici\u00f3n de ejecuci\u00f3n en la fase \"hello handshake\" del protocolo DTLS cuando maneja DTLS-SRTP para la configuraci\u00f3n de medios. Este ataque se puede realizar de forma continua, negando as\u00ed nuevas llamadas cifradas DTLS-SRTP durante el ataque. El abuso de esta vulnerabilidad puede provocar una denegaci\u00f3n de servicio masiva en servidores Asterisk vulnerables para llamadas que dependen de DTLS-SRTP. El commit d7d7764cb07c8a1872804321302ef93bf62cba05 contiene una soluci\u00f3n, que forma parte de las versiones 18.20.1, 20.5.1, 21.0.1, amd 18.9-cert6."}], "lastModified": "2024-11-21T08:33:50.533", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A49E9157-3440-47C5-B730-B1F3BE7240C9", "versionEndExcluding": "18.20.1"}, {"criteria": "cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FCA06EB6-E31A-43B2-A750-186255114B8F", "versionEndExcluding": "20.5.1", "versionStartIncluding": "19.0.0"}, {"criteria": "cpe:2.3:a:digium:asterisk:21.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3E690E3-3E92-42ED-87DD-1C6B838A3FF9"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:13.13.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2AFE2011-05AA-45A6-A561-65C6C664DA7B"}, {"criteria": 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