23647 : Apple Mac OS X passwd Temp File Symlink Arbitrary File Manipulation
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	550	over 5 years ago	about 1 year ago	3 times	100%

Timeline

Discovery Date	Vendor Informed Date	Vendor Ack Date	Disclosure Date
2005-08-23	2005-08-23	2005-08-27	2006-02-28

Time to Vendor Response
4 days

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 Public
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.	Mac OS X	10.3.x
		10.4
		10.4.1
		10.4.2
		10.4.3
		10.4.4
		10.4.5

References

Bugtraq ID: 16907 16910
Secunia Advisory ID: 19064
CVE ID: 2005-2714 (see also: NVD)
Related OSVDB ID: 23636 23637 23638 23639 23640 23641 23642 23643 23644 23645 23646 23648 23649
VUPEN Advisory: ADV-2006-0791
Vendor Specific Advisory URL: http://docs.info.apple.com/article.html?artnum=303382
Other Advisory URL: http://www.idefense.com/intelligence/vulnerabilities/display.php?id=400
News Article: http://www.informationweek.com/news/showArticle.jhtml;?articleID=181500394

Tools & Filters

	20990
	3273

Credit

vade79 - iDefense Labs VCP

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2006-03-02 | Disagree?

Blogs

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