CVE-2023-3326

{"id": "CVE-2023-3326", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2023-06-22T17:15:44.833", "references": [{"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-23:04.pam_krb5.asc", "tags": ["Mitigation", "Vendor Advisory"], "source": "secteam@freebsd.org"}, {"url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-23:09.pam_krb5.asc", "source": "secteam@freebsd.org"}, {"url": "https://security.netapp.com/advisory/ntap-20230714-0005/", "tags": ["Third Party Advisory"], "source": "secteam@freebsd.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-287"}]}, {"type": "Secondary", "source": "secteam@freebsd.org", "description": [{"lang": "en", "value": "CWE-303"}]}], "descriptions": [{"lang": "en", "value": "pam_krb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket (tgt) from the Kerberos KDC (Key Distribution Center) over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pam_krb5 has no way to validate the response from the KDC, and essentially trusts the tgt provided over the network as being valid. In a non-default FreeBSD installation that leverages pam_krb5 for authentication and does not have a keytab provisioned, an attacker that is able to control both the password and the KDC responses can return a valid tgt, allowing authentication to occur for any user on the system.\n"}], "lastModified": "2023-08-01T23:15:30.827", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A7F6C8B0-9D75-476C-ADBA-754416FBC186", "versionEndExcluding": "12.4"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D79AAEBE-0D5A-4C9C-95FD-6287A53EE1C0", "versionEndExcluding": "13.1", "versionStartIncluding": "13.0"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "24920B4D-96C0-401F-B679-BEB086760EAF"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3CE32730-A9F5-4E8D-BDA4-6B8232F84787"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "552E81DE-D409-475F-8ED0-E10A0BE43D29"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:rc2-p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BA821886-B26B-47A6-ABC9-B8F70CE0ACFB"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:12.4:rc2-p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "220629AD-32CC-4303-86AE-1DD27F0E4C65"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEEE6D52-27E4-438D-AE8D-7141320B5973"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:b1-p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66364EA4-83B1-4597-8C18-D5633B361A9C"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:b2-p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF9292DD-EFB1-4B50-A941-7485D901489F"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EFB18F55-4F5C-4166-9A7E-6F6617179A90"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "66E1C269-841F-489A-9A0A-5D145B417E0A"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ECF1B567-F764-45F5-A793-BEA93720F952"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DAFE3F33-2C57-4B52-B658-82572607BD8C"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C925DF75-2785-44BD-91CA-66D29C296689"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCE2DAEC-81A5-49E9-B7E7-4F143FA6B3F7"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:p7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7725D503-1437-4F90-B30C-007193D5F0E1"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.1:rc1-p1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B536EE52-ED49-4A85-BC9D-A27828D5A961"}, {"criteria": "cpe:2.3:o:freebsd:freebsd:13.2:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A87EFA20-DD6B-41C5-98FD-A29F67D2E732"}], "operator": "OR"}]}], "sourceIdentifier": "secteam@freebsd.org"}