RETIRED: LightDM '.Xauthority' Arbitrary File Access Vulnerability

BID:50685

Info

RETIRED: LightDM '.Xauthority' Arbitrary File Access Vulnerability

Bugtraq ID: 50685
Class: Design Error
CVE:
Remote: No
Local: Yes
Published: Nov 15 2011 12:00AM
Updated: Feb 21 2012 11:40PM
Credit: Reported by the vendor
Vulnerable: Ubuntu Ubuntu Linux 11.10 i386
Ubuntu Ubuntu Linux 11.10 amd64
freedesktop.org LightDM 1.0.5
freedesktop.org LightDM 1.0.4
Not Vulnerable: freedesktop.org LightDM 1.0.6

Discussion

RETIRED: LightDM '.Xauthority' Arbitrary File Access Vulnerability

Light Display Manager (LightDM) is prone to an arbitrary file-access vulnerability.

Local attackers can exploit this issue to read or write to arbitrary files. This may lead to further attacks.

This BID is being retired as a duplicate of the issue discussed in BID 50511 (LightDM 'xsession_setup()' Symlink Attack Local Privilege Escalation Vulnerability).

Exploit / POC

RETIRED: LightDM '.Xauthority' Arbitrary File Access Vulnerability

An attacker uses readily available commands to exploit the issues.

Solution / Fix

RETIRED: LightDM '.Xauthority' Arbitrary File Access Vulnerability

Solution:
Updates are available. Please see the references for more information.

References

RETIRED: LightDM '.Xauthority' Arbitrary File Access Vulnerability

References:
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