77531 : SquirrelMail Change_passwd Plugin Password Update Temporary File Symlink Arbitrary File Overwrite
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
5	688	over 1 year ago	23 days ago	6 times	100%

Timeline

Disclosure Date
2004-04-23

Time to Patch
3 days

Description

SquirrelMail Change_passwd Plugin contains a flaw that may allow a malicious local user to overwrite arbitrary files on the system as well as read the contents of /etc/shadow. The issue is due to the program creating temporary files insecurely when updating a user's password. It is possible for a local attacker to use a symlink attack to cause the program to unexpectedly write to, or overwrite an attacker specified file.

Classification

Location: Local Access Required
Attack Type: Information Disclosure, Input Manipulation
Impact: Loss of Confidentiality, Loss of Integrity
Solution: Upgrade
Exploit: Exploit Private
Disclosure: RBS Confirmed, Vendor Verified, Coordinated Disclosure

Solution

Upgrade to version 4.0 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Paul Lesniewski

Squirrelmail Change_passwd Plugin

3.1

References

Secunia Advisory ID: 11424
Other Advisory URL: http://secunia.com/secunia_research/2004-4/
Vendor Specific News/Changelog Entry: http://www.squirrelmail.org/plugin_view.php?id=117

Credit

Carsten Eiram - Secunia Research

CVSSv2 Score

NVD does not currently have a CVSSv2 score assigned.

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