CVE-2026-23741

{"id": "CVE-2026-23741", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-23741", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-06T17:22:49.844752Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 0.0, "attackVector": "LOCAL", "baseSeverity": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 0.0, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "asterisk", "product": "asterisk", "versions": [{"status": "affected", "version": "< 23.2.2"}, {"status": "affected", "version": "< 22.8.2"}, {"status": "affected", "version": "< 21.12.1"}, {"status": "affected", "version": "< 20.18.2"}, {"status": "affected", "version": "< 20.7-cert9"}]}]}], "published": "2026-02-06T17:16:26.427", "references": [{"url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-rvch-3jmx-3jf3", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-427"}]}], "descriptions": [{"lang": "en", "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, the asterisk/contrib/scripts/ast_coredumper runs as root, as noted by the NOTES tag on line 689 of the ast_coredumper file. The script will source the contents of /etc/asterisk/ast_debug_tools.conf, which resides in a folder that is writeable by the asterisk user:group. Due to the /etc/asterisk/ast_debug_tools.conf file following bash semantics and it being loaded; an attacker with write permissions may add or modify the file such that when the root ast_coredumper is run; it would source and thereby execute arbitrary bash code found in the /etc/asterisk/ast_debug_tools.conf. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2."}, {"lang": "es", "value": "Asterisk es un kit de herramientas de telefon\u00eda y centralita privada de c\u00f3digo abierto. Antes de las versiones 20.7-cert9, 20.18.2, 21.12.1, 22.8.2 y 23.2.2, el script asterisk/contrib/scripts/ast_coredumper se ejecuta como root, como se indica en la etiqueta NOTES en la l\u00ednea 689 del archivo ast_coredumper. El script obtendr\u00e1 el contenido de /etc/asterisk/ast_debug_tools.conf, que reside en una carpeta que es escribible por el usuario:grupo asterisk. Debido a que el archivo /etc/asterisk/ast_debug_tools.conf sigue la sem\u00e1ntica de bash y a que se carga; un atacante con permisos de escritura puede a\u00f1adir o modificar el archivo de tal manera que cuando se ejecute el ast_coredumper de root; este obtendr\u00eda y, por lo tanto, ejecutar\u00eda c\u00f3digo bash arbitrario encontrado en el /etc/asterisk/ast_debug_tools.conf. Este problema ha sido parcheado en las versiones 20.7-cert9, 20.18.2, 21.12.1, 22.8.2 y 23.2.2."}], "lastModified": "2026-06-17T10:22:01.827", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46AC3571-DD52-4F3C-98D2-3BB915498D41", "versionEndExcluding": "20.18.2"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B9CB7760-849C-42CB-BF9A-A3DB40F19447", "versionEndExcluding": "21.12.1", "versionStartIncluding": "21.0.0"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "03AEEF8D-B546-4587-A236-63E2C41582FF", "versionEndExcluding": "22.8.2", "versionStartIncluding": "22.0.0"}, {"criteria": "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B036D768-9ADA-4965-A596-BEF60749C3CD", "versionEndExcluding": "23.2.2", "versionStartIncluding": "23.0.0"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "44460225-C50D-414A-A2E0-F8280E1C1E1D", "versionEndIncluding": "18.9"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79225576-AF7C-4099-9624-C53578A7417F"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29323E6E-12C9-46C7-B29C-25E0CD537A8E"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8E563972-78C0-40A0-83EA-6A3BA3D71946"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64209621-D458-432A-B0E3-C8D0B6698574"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B148158A-8354-41C2-A44C-2C0DAABAD217"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D4D96E8-1F01-42B8-9181-67DEB12D9DD2"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "50D1B02A-F5F9-48EB-A396-412821F5D602"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4CBB2891-448F-4C4E-8A47-2283A8F71FE6"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A9AF30E9-FC50-4A5C-BC99-9B3394488B9D"}, {"criteria": "cpe:2.3:a:sangoma:certified_asterisk:20.7:cert8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A41366F-EA16-4867-A198-ACFFE5AFEA9A"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}