Joined: 12 May 2004
|Posted: Fri Feb 06, 2009 11:26 pm Post subject: [ GLSA 200902-01 ] sudo: Privilege escalation
|Gentoo Linux Security Advisory
Title: sudo: Privilege escalation (GLSA 200902-01)
Date: February 06, 2009
A vulnerability in sudo may allow for privilege escalation.
sudo allows a system administrator to give users the ability to run commands as other users.
Vulnerable: < 1.7.0
Unaffected: >= 1.7.0
Architectures: All supported architectures
Harald Koenig discovered that sudo incorrectly handles group specifications in Runas_Alias (and related) entries when a group is specified in the list (using %group syntax, to allow a user to run commands as any member of that group) and the user is already a member of that group.
A local attacker could possibly run commands as an arbitrary system user (including root).
There is no known workaround at this time.
All sudo users should upgrade to the latest version:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-admin/sudo-1.7.0"