{ "id": "CVE-2018-1113", "sourceIdentifier": "secalert@redhat.com", "published": "2018-07-03T01:29:00.690", "lastModified": "2024-11-21T03:59:12.507", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "setup before version 2.11.4-1.fc28 in Fedora and Red Hat Enterprise Linux added /sbin/nologin and /usr/sbin/nologin to /etc/shells. This violates security assumptions made by pam_shells and some daemons which allow access based on a user's shell being listed in /etc/shells. Under some circumstances, users which had their shell changed to /sbin/nologin could still access the system." }, { "lang": "es", "value": "setup en versiones anteriores a la 2.11.4-1.fc28 en Fedora y Red Hat Enterprise Linux a\u00f1ad\u00eda /sbin/nologin y /usr/sbin/nologin a /etc/shells. Esto viola las asunciones de seguridad realizadas por pam_shells y algunos demonios, lo que permite el acceso en base a que el shell de un usuario se lista en /etc/shells. En algunas circunstancias, los usuarios a los que se les haya cambiado el shell a /sbin/nologin podr\u00edan seguir siendo capaces de acceder al sistema." } ], "metrics": { "cvssMetricV30": [ { "source": "secalert@redhat.com", "type": "Secondary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L", "baseScore": 4.8, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW" }, "exploitabilityScore": 1.3, "impactScore": 3.4 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW" }, "exploitabilityScore": 1.8, "impactScore": 3.4 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "baseScore": 4.6, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL" }, "baseSeverity": "MEDIUM", "exploitabilityScore": 3.9, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "secalert@redhat.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-285" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-732" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:redhat:setup:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.11.4", "matchCriteriaId": "446872AD-2412-41A9-BE1A-99C0CC48941A" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:o:fedoraproject:fedora:-:*:*:*:*:*:*:*", "matchCriteriaId": "D3FEADDA-2AEE-4F65-9401-971B585664A8" }, { "vulnerable": false, "criteria": "cpe:2.3:o:redhat:enterprise_linux:-:*:*:*:*:*:*:*", "matchCriteriaId": "3F7347E2-C2A4-4230-A1BC-F6FE93943D4F" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564" }, { "vulnerable": true, "criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318" }, { "vulnerable": true, "criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*", "matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97" } ] } ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHBA-2019:0327", "source": "secalert@redhat.com", "tags": [ "Vendor Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2018:3249", "source": "secalert@redhat.com", "tags": [ "Vendor Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Vendor Advisory" ] }, { "url": "https://access.redhat.com/errata/RHBA-2019:0327", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ] }, { "url": "https://access.redhat.com/errata/RHSA-2018:3249", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1113", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Vendor Advisory" ] } ] }