Description
This module attempts to gain root privileges on Linux systems with a vulnerable version of Automatic Bug Reporting Tool (ABRT) configured as the crash handler.
A race condition allows local users to change ownership of arbitrary files (CVE-2015-3315). This module uses a symlink attack on `/var/tmp/abrt/*/maps` to change the ownership of `/etc/passwd`, then adds a new user with UID=0 GID=0 to gain root privileges. Winning the race could take a few minutes.
This module has been tested successfully on:
abrt 2.1.11-12.el7 on RHEL 7.0 x86_64; abrt 2.1.5-1.fc19 on Fedora Desktop 19 x86_64; abrt 2.2.1-1.fc19 on Fedora Desktop 19 x86_64; abrt 2.2.2-2.fc20 on Fedora Desktop 20 x86_64; abrt 2.3.0-3.fc21 on Fedora Desktop 21 x86_64.
Module options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use exploit/linux/local/abrt/raceabrt_priv_escmsf undefined(raceabrt_priv_esc) > show actions ...actions...msf undefined(raceabrt_priv_esc) > set ACTION < action-name >msf undefined(raceabrt_priv_esc) > show options ...show and set options...msf undefined(raceabrt_priv_esc) > runPrioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub