Vulnerability Report

CVE-2019-12749

Title: Freedesktop Dbus

Other

Proof Of Concept

No public PoC currently indexed for CVE-2019-12749.

CWE Category CWE-59
Published Date Jun 11, 2019
Modified Date Feb 13, 2026
Exploit Status Not Found
Score 7.1 CVSS v3.0
Exploit Probability (EPSS)
0.05%

Vulnerability Summary

CVE-2019-12749: 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.

Impacted Vendors

F
freedesktop 1

Reference Links

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 http://www.openwall.com/lists/oss-security/2019/06/11/2 http://www.securityfocus.com/bid/108751 https://access.redhat.com/errata/RHSA-2019:1726 https://access.redhat.com/errata/RHSA-2019:2868 https://access.redhat.com/errata/RHSA-2019:2870 https://access.redhat.com/errata/RHSA-2019:3707 https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/ https://seclists.org/bugtraq/2019/Jun/16 https://security.gentoo.org/glsa/201909-08 https://usn.ubuntu.com/4015-1/ https://usn.ubuntu.com/4015-2/ https://www.debian.org/security/2019/dsa-4462 https://www.openwall.com/lists/oss-security/2019/06/11/2 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 http://www.openwall.com/lists/oss-security/2019/06/11/2 http://www.securityfocus.com/bid/108751 https://access.redhat.com/errata/RHSA-2019:1726 https://access.redhat.com/errata/RHSA-2019:2868 https://access.redhat.com/errata/RHSA-2019:2870 https://access.redhat.com/errata/RHSA-2019:3707 https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/ https://seclists.org/bugtraq/2019/Jun/16 https://security.gentoo.org/glsa/201909-08 https://security.netapp.com/advisory/ntap-20241206-0010/ https://usn.ubuntu.com/4015-1/ https://usn.ubuntu.com/4015-2/ https://www.debian.org/security/2019/dsa-4462 https://www.openwall.com/lists/oss-security/2019/06/11/2
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.1
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.1
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
3.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2019-12749 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected Stack

No specific products linked.