Improper Authentication Affecting dbus-doc package, versions <1:1.10.24-15.el7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-CENTOS7-DBUSDOC-2170845
- published26 Jul 2021
- disclosed11 Jun 2019
Introduced: 11 Jun 2019
CVE-2019-12749 (opens in a new tab)How to fix?
Upgrade Centos:7 dbus-doc to version 1:1.10.24-15.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dbus-doc package and not the dbus-doc package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/108751
- https://seclists.org/bugtraq/2019/Jun/16
- https://access.redhat.com/security/cve/CVE-2019-12749
- https://www.debian.org/security/2019/dsa-4462
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/
- https://security.gentoo.org/glsa/201909-08
- https://www.openwall.com/lists/oss-security/2019/06/11/2
- https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html
- http://www.openwall.com/lists/oss-security/2019/06/11/2
- https://access.redhat.com/errata/RHSA-2020:4032
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00059.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00092.html
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00026.html
- https://usn.ubuntu.com/4015-1/
- https://usn.ubuntu.com/4015-2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/
- https://security.netapp.com/advisory/ntap-20241206-0010/