Smb4k: Local unauthorized file access — GLSA 200511-15

A vulnerability has been identified that allows unauthorized access to the contents of /etc/sudoers and /etc/super.tab files.

Affected Packages

net-misc/smb4k on all architectures
Affected versions < 0.6.4
Unaffected versions >= 0.6.4

Background

Smb4K is a SMB/CIFS share browser for KDE.

Description

A vulnerability leading to unauthorized file access has been found. A pre-existing symlink from /tmp/sudoers and /tmp/super.tab to a textfile will cause Smb4k to write the contents of these files to the target of the symlink, as Smb4k does not check for the existence of these files before writing to them.

Impact

An attacker could acquire local privilege escalation by adding username(s) to the list of sudoers.

Workaround

There is no known workaround at this time.

Resolution

All smb4k users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/smb4k-0.6.4"

References

Release Date
November 18, 2005

Latest Revision
November 18, 2005: 01

Severity
high

Exploitable
local

Bugzilla entries