Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
[ GLSA 200504-25 ] Rootkit Hunter: 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
Veteran
Veteran


Joined: 12 May 2004
Posts: 1471

PostPosted: Tue Apr 26, 2005 7:37 pm    Post subject: [ GLSA 200504-25 ] Rootkit Hunter: Insecure temporary file c Reply with quote

Gentoo Linux Security Advisory

Title: Rootkit Hunter: Insecure temporary file creation (GLSA 200504-25)
Severity: normal
Exploitable: local
Date: April 26, 2005
Bug(s): #90007
ID: 200504-25

Synopsis


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


Background


Rootkit Hunter is a scanning tool to detect rootkits, backdoors
and local exploits on a local machine. Rootkit Hunter uses downloaded
data files to check file integrity. These files are updated via the
check_update.sh script.


Affected Packages

Package: app-forensics/rkhunter
Vulnerable: < 1.2.3-r1
Unaffected: >= 1.2.3-r1
Architectures: All supported architectures


Description


Sune Kloppenborg Jeppesen and Tavis Ormandy of the Gentoo Linux
Security Team have reported that the check_update.sh script and the
main rkhunter script insecurely creates several temporary files with
predictable filenames.


Impact


A local attacker could create symbolic links in the temporary
files directory, pointing to a valid file somewhere on the filesystem.
When rkhunter or the check_update.sh script runs, 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 Rootkit Hunter users should upgrade to the latest version:
Code:
# emerge --sync
    # emerge --ask --oneshot --verbose ">=app-forensics/rkhunter-1.2.3-r1"


References

CAN-2005-1270


Last edited by GLSA on Mon May 27, 2013 4:19 am; edited 3 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