Vulnerability Details : 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.
Published 2019-06-11 17:29:01
Updated 2020-08-24 17:37:01
Source MITRE
View at NVD,

Exploit prediction scoring system (EPSS) score for CVE-2019-12749

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 15 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2019-12749

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source

CWE ids for CVE-2019-12749

References for CVE-2019-12749

Products affected by CVE-2019-12749

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