Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200412-05 ] mirrorselect: Insecure temporary file creation
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
Bodhisattva
Bodhisattva


Joined: 25 Feb 2003
Posts: 3829
Location: Essen, Germany

PostPosted: Tue Dec 07, 2004 1:01 pm    Post subject: [ GLSA 200412-05 ] mirrorselect: Insecure temporary file cre Reply with quote

Gentoo Linux Security Advisory

Title: mirrorselect: Insecure temporary file creation (GLSA 200412-05)
Severity: normal
Exploitable: local
Date: December 07, 2004
Updated: May 22, 2006
Bug(s): #73545
ID: 200412-05

Synopsis

mirrorselect is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background

mirrorselect is a tool to help select distfiles mirrors for Gentoo.

Affected Packages

Package: app-portage/mirrorselect
Vulnerable: < 0.89
Unaffected: >= 0.89
Architectures: All supported architectures


Description

Ervin Nemeth discovered that mirrorselect creates temporary files in world-writable directories with predictable names.

Impact

A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When mirrorselect is executed, this would result in the file being overwritten with the rights of the user running the utility, which could be the root user.

Workaround

There is no known workaround at this time.

Resolution

All mirrorselect users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-portage/mirrorselect-0.89"


References

CVE-2004-1167


Last edited by GLSA on Tue May 23, 2006 4:18 am; edited 2 times 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