{ "id": "CVE-2023-27536", "sourceIdentifier": "support@hackerone.com", "published": "2023-03-30T20:15:07.547", "lastModified": "2023-04-21T23:15:20.060", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": "An authentication bypass vulnerability exists libcurl <8.0.0 in the connection reuse feature which can reuse previously established connections with incorrect user permissions due to a failure to check for changes in the CURLOPT_GSSAPI_DELEGATION option. This vulnerability affects krb5/kerberos/negotiate/GSSAPI transfers and could potentially result in unauthorized access to sensitive information. The safest option is to not reuse connections if the CURLOPT_GSSAPI_DELEGATION option has been changed." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-287" } ] }, { "source": "support@hackerone.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-305" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.22.0", "versionEndIncluding": "7.88.1", "matchCriteriaId": "1FD7CD4C-BF3D-41DD-AC3F-005FB087CE0A" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*", "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD" } ] } ] } ], "references": [ { "url": "https://hackerone.com/reports/1895135", "source": "support@hackerone.com", "tags": [ "Exploit", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00025.html", "source": "support@hackerone.com" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/", "source": "support@hackerone.com", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20230420-0010/", "source": "support@hackerone.com" } ] }