CVE-2019-12749

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://www.openwall.com/lists/oss-security/2019/06/11/2", "name": "https://www.openwall.com/lists/oss-security/2019/06/11/2", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MISC"}, {"url": "http://www.openwall.com/lists/oss-security/2019/06/11/2", "name": "[oss-security] 20190611 CVE-2019-12749: DBusServer DBUS_COOKIE_SHA1 authentication bypass", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://usn.ubuntu.com/4015-1/", "name": "USN-4015-1", "tags": ["Third Party Advisory"], "refsource": "UBUNTU"}, {"url": "https://usn.ubuntu.com/4015-2/", "name": "USN-4015-2", "tags": [], "refsource": "UBUNTU"}, {"url": "https://www.debian.org/security/2019/dsa-4462", "name": "DSA-4462", "tags": [], "refsource": "DEBIAN"}, {"url": "https://seclists.org/bugtraq/2019/Jun/16", "name": "20190613 [SECURITY] [DSA 4462-1] dbus security update", "tags": [], "refsource": "BUGTRAQ"}, {"url": "http://www.securityfocus.com/bid/108751", "name": "108751", "tags": [], "refsource": "BID"}, {"url": "https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html", "name": "[debian-lts-announce] 20190614 [SECURITY] [DLA 1818-1] dbus security update", "tags": [], "refsource": "MLIST"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/", "name": "FEDORA-2019-d5ded5326b", "tags": [], "refsource": "FEDORA"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00059.html", "name": "openSUSE-SU-2019:1604", "tags": [], "refsource": "SUSE"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00092.html", "name": "openSUSE-SU-2019:1671", "tags": [], "refsource": "SUSE"}, {"url": "https://access.redhat.com/errata/RHSA-2019:1726", "name": "RHSA-2019:1726", "tags": [], "refsource": "REDHAT"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00026.html", "name": "openSUSE-SU-2019:1750", "tags": [], "refsource": "SUSE"}, {"url": "https://security.gentoo.org/glsa/201909-08", "name": "GLSA-201909-08", "tags": [], "refsource": "GENTOO"}, {"url": "https://access.redhat.com/errata/RHSA-2019:2870", "name": "RHSA-2019:2870", "tags": [], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2019:2868", "name": "RHSA-2019:2868", "tags": [], "refsource": "REDHAT"}, {"url": "https://access.redhat.com/errata/RHSA-2019:3707", "name": "RHSA-2019:3707", "tags": [], "refsource": "REDHAT"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-59"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2019-12749", "ASSIGNER": "cve@mitre.org"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 3.6, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "LOW", "acInsufInfo": false, "impactScore": 4.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}}, "publishedDate": "2019-06-11T17:29Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.12.16", "versionStartIncluding": "1.12.0"}, {"cpe23Uri": "cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.10.28"}, {"cpe23Uri": "cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.13.12", "versionStartIncluding": "1.13.0"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2020-08-24T17:37Z"}