PolicyKit Grant Helper Password Handling Local Format String Vulnerability

BID:28702

Info

PolicyKit Grant Helper Password Handling Local Format String Vulnerability

Bugtraq ID: 28702
Class: Input Validation Error
CVE: CVE-2008-1658
Remote: No
Local: Yes
Published: Apr 09 2008 12:00AM
Updated: Apr 18 2008 12:29AM
Credit: Boris Edmann
Vulnerable: Red Hat Fedora 8
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
freedesktop.org PolicyKit 0.7
freedesktop.org PolicyKit 0.6
Not Vulnerable:

Discussion

PolicyKit Grant Helper Password Handling Local Format String Vulnerability

PolicyKit is prone to a local format-string vulnerability because it fails to adequately sanitize user-supplied input before passing it to a formatted-printing function.

Successfully exploiting this issue will allow local attackers to bypass authentication or to cause a denial of service. Given the nature of this issue, attackers may also be able to execute arbitrary code, but this has not been confirmed.

PolicyKit 0.6 is vulnerable; other versions may also be affected.

Exploit / POC

PolicyKit Grant Helper Password Handling Local Format String Vulnerability

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

Solution / Fix

PolicyKit Grant Helper Password Handling Local Format String Vulnerability

Solution:
The vendor has released fixes. Please see the references for more information.


freedesktop.org PolicyKit 0.6

freedesktop.org PolicyKit 0.7

References

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