Net-Acct Symbolic Link Vulnerability

BID:11125

Info

Net-Acct Symbolic Link Vulnerability

Bugtraq ID: 11125
Class: Access Validation Error
CVE: CVE-2004-0851
Remote: No
Local: Yes
Published: Sep 07 2004 12:00AM
Updated: Jul 12 2009 07:06AM
Credit: Discovery of this vulnerability is credited to Stefan Nordhausen.
Vulnerable: Ulrich Callmeier Net-Acct 0.71
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + Debian Linux 3.0
Ulrich Callmeier Net-Acct 0.7
Ulrich Callmeier Net-Acct 0.6
Debian Linux 3.0 sparc
Debian Linux 3.0 s/390
Debian Linux 3.0 ppc
Debian Linux 3.0 mipsel
Debian Linux 3.0 mips
Debian Linux 3.0 m68k
Debian Linux 3.0 ia-64
Debian Linux 3.0 ia-32
Debian Linux 3.0 hppa
Debian Linux 3.0 arm
Debian Linux 3.0 alpha
Not Vulnerable:

Discussion

Net-Acct Symbolic Link Vulnerability

Net-Acct is reportedly affected by a symbolic link vulnerability. This issue is due to a design error that fails to properly verify files prior to writing to them.

This issue will allow an attacker to overwrite arbitrary files. Reportedly, this issue could be leveraged to facilitate privilege escalation.

Exploit / POC

Net-Acct Symbolic Link Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Net-Acct Symbolic Link Vulnerability

Solution:
Debian Linux has released an advisory (DSA 559-1) along with fixes dealing with this issue. Please see the referenced advisory for more information.

The vendor has released a patch to address this issue:


Ulrich Callmeier Net-Acct 0.6

Ulrich Callmeier Net-Acct 0.7

Ulrich Callmeier Net-Acct 0.71

References

Net-Acct Symbolic Link Vulnerability

References:

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