Joined: 12 May 2004
|Posted: Thu Oct 09, 2008 6:26 pm Post subject: [ GLSA 200810-02 ] Portage: Untrusted search path local root
|Gentoo Linux Security Advisory
Title: Portage: Untrusted search path local root vulnerability (GLSA 200810-02)
Date: October 09, 2008
A search path vulnerability in Portage allows local attackers to execute
commands with root privileges if emerge is called from untrusted
Portage is Gentoo's package manager which is responsible for
installing, compiling and updating all packages on the system through
the Gentoo rsync tree.
Vulnerable: < 188.8.131.52
Unaffected: >= 184.108.40.206
Architectures: All supported architectures
The Gentoo Security Team discovered that several ebuilds, such as
sys-apps/portage, net-mail/fetchmail or app-editors/leo execute Python
code using "python -c", which includes the current working directory in
Python's module search path. For several ebuild functions, Portage did
not change the working directory from emerge's working directory.
A local attacker could place a specially crafted Python module in a
directory (such as /tmp) and entice the root user to run commands such
as "emerge sys-apps/portage" from that directory, resulting in the
execution of arbitrary Python code with root privileges.
Do not run "emerge" from untrusted working directories.
All Portage users should upgrade to the latest version:
|# cd /root
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/portage-220.127.116.11"
NOTE: To upgrade to Portage 18.104.22.168 using 22.214.171.124 or prior, you must
run emerge from a trusted working directory, such as "/root".
Last edited by GLSA on Sun Nov 02, 2014 4:27 am; edited 2 times in total