23647 : Apple Mac OS X passwd Temp File Symlink Arbitrary File Manipulation
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Info

Last Modified
11 months ago

Percent Complete
100%

Disclosure
Feb 28, 2006

Discovery
Aug 23, 2005

Dates

Exploit
Unknown

Solution
Unknown

Keywords

 No Keywords

Description

 Mac OS X contains a flaw that may allow a malicious local user to create arbitrary files on the system. The issue is due to the passwd program creating temporary files insecurely, using the form /tmp/.pwtmp.<pid> where <pid> is the process id of the passwd process. It is possible for a user to use a symlink style attack to manipulate arbitrary files, resulting in a loss of integrity.

Classification

 Location: Local Access Required
Attack Type: Race Condition
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

 Currently, there are no known workarounds or upgrades to correct this issue. However, Apple has released a patch (2006-001) to address this vulnerability.

Products
Apple Computer, Inc.
Watch-list
Mac OS X
Watch-list
 10.4
10.3.x
10.4.1
10.4.2
10.4.3
10.4.4
10.4.5

References

Tools & Filters

Nessus

 20990

Credit
  • vade79 -
  • Ilja van Sprundel -

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