CVE-2012-3524
libdbus < 1.5.12 - Local Privilege Escalation via DBUS_SYSTEM_BUS_ADDRESS Environment Variable
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2012-3524. PoCs published by Sebastian Krahmer.
AI-analyzed exploit summary This exploit leverages insecure getenv() usage in SUID binaries (spice, pam_systemd, or Xorg) to escalate privileges by manipulating environment variables and executing a malicious dbus-launch symlink. It demonstrates a local privilege escalation (LPE) via improper handling of environment variables in system utilities.
Description
libdbus 1.5.x and earlier, when used in setuid or other privileged programs in X.org and possibly other products, allows local users to gain privileges and execute arbitrary code via the DBUS_SYSTEM_BUS_ADDRESS environment variable. NOTE: libdbus maintainers state that this is a vulnerability in the applications that do not cleanse environment variables, not in libdbus itself: "we do not support use of libdbus in setuid binaries that do not sanitize their environment before their first call into libdbus."
Exploits (1)
This exploit leverages insecure getenv() usage in SUID binaries (spice, pam_systemd, or Xorg) to escalate privileges by manipulating environment variables and executing a malicious dbus-launch symlink. It demonstrates a local privilege escalation (LPE) via improper handling of environment variables in system utilities.