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Joined: 12 May 2004
Posts: 2308

PostPosted: Sun Jun 26, 2016 3:26 pm    Post subject: [ GLSA 201606-13 ] sudo Reply with quote

Gentoo Linux Security Advisory

Title: sudo: Unauthorized privilege escalation in sudoedit (GLSA 201606-13)
Severity: normal
Exploitable: local
Date: June 26, 2016
Bug(s): #564774
ID: 201606-13


sudo is vulnerable to an escalation of privileges via a symlink


sudo (su “do”) allows a system administrator to delegate authority
to give certain users (or groups of users) the ability to run some (or
all) commands as root or another user while providing an audit trail of
the commands and their arguments.

Affected Packages

Package: app-admin/sudo
Vulnerable: < 1.8.15-r1
Unaffected: >= 1.8.15-r1
Architectures: All supported architectures


sudoedit in sudo is vulnerable to the escalation of privileges by local
users via a symlink attack. This can be exploited by a file whose full
path is defined using multiple wildcards in /etc/sudoers, as demonstrated
by “/home//file.txt.


Local users are able to gain unauthorized privileges on the system.


There is no known work around at this time.


All sudo users should upgrade to the latest version:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.8.15-r1"


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