{ "id": "CVE-2021-23177", "sourceIdentifier": "secalert@redhat.com", "published": "2022-08-23T16:15:09.280", "lastModified": "2022-12-03T14:16:24.723", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges." }, { "lang": "es", "value": "Un fallo de resoluci\u00f3n de enlaces inapropiado mientras es extra\u00eddo un archivo puede conllevar a un cambio de la lista de control de acceso (ACL) del objetivo del enlace. Un atacante puede proporcionar un archivo malicioso a un usuario v\u00edctima, que desencadenar\u00eda este fallo cuando intentara extraer el archivo. Un atacante local puede usar este fallo para cambiar la ACL de un archivo en el sistema y conseguir m\u00e1s privilegios." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } ] }, "weaknesses": [ { "source": "secalert@redhat.com", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-59" } ] }, { "source": "nvd@nist.gov", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-59" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": 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"https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad", "source": "secalert@redhat.com", "tags": [ "Patch", "Third Party Advisory" ] }, { "url": "https://github.com/libarchive/libarchive/issues/1565", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html", "source": "secalert@redhat.com", "tags": [ "Mailing List", "Third Party Advisory" ] } ] }