Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200510-22 ] SELinux PAM: Local password guessing attack
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index News & Announcements
View previous topic :: View next topic  
Author Message
GLSA
Veteran
Veteran


Joined: 12 May 2004
Posts: 1471

PostPosted: Fri Oct 28, 2005 11:30 am    Post subject: [ GLSA 200510-22 ] SELinux PAM: Local password guessing atta Reply with quote

Gentoo Linux Security Advisory

Title: SELinux PAM: Local password guessing attack (GLSA 200510-22)
Severity: normal
Exploitable: local
Date: October 28, 2005
Bug(s): #109485
ID: 200510-22

Synopsis

A vulnerability in the SELinux version of PAM allows a local attacker to brute-force system passwords.

Background

PAM (Pluggable Authentication Modules) is an architecture allowing the separation of the development of privilege granting software from the development of secure and appropriate authentication schemes. SELinux is an operating system based on Linux which includes Mandatory Access Control.

Affected Packages

Package: sys-libs/pam
Vulnerable: < 0.78-r3
Unaffected: >= 0.78-r3
Architectures: All supported architectures


Description

The SELinux patches for PAM introduce a vulnerability allowing a password to be checked with the unix_chkpwd utility without delay or logging. This vulnerability doesn't affect users who do not run SELinux.

Impact

A local attacker could exploit this vulnerability to brute-force passwords and escalate privileges on an SELinux system.

Workaround

There is no known workaround at this time.

Resolution

All SELinux PAM users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-libs/pam-0.78-r3"


References

CVE-2005-2977


Last edited by GLSA on Sun May 07, 2006 4:59 pm; edited 1 time in total
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index News & Announcements All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum