25131 : TrueCrypt External Command Path Subversion Local Privilege Escalation
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Info

Last Modified

about 1 year ago

Percent Complete

100%

Disclosure

Apr 30, 2006

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Keywords

No Keywords

Description

TrueCrypt contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is caused by the unsafe use of the 'execvp()' function to execute external commands without sanitising the user's current PATH settings. This flaw may lead to a loss of integrity.

Classification

Location: Local Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Rumored / Private
Disclosure: OSVDB Verified

Technical

The program TrueCrypt is not SUID/SGID by default and can not be leveraged for additional privileges as a result of a default installation. This vulnerability only manifests if an administrator adds SUID or SGID privileges to the program, or if another program invokes it with increased privileges.

Solution

Upgrade to version 4.2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

TrueCrypt

TrueCrypt

4.1

References

Secunia Advisory ID: 19903
CVE ID: 2006-2183 (see also: NVD)
FrSIRT Advisory: ADV-2006-1591
Other Advisory URL: http://lists.immunitysec.com/pipermail/dailydave/2006-April/003152.html
Vendor URL: http://www.truecrypt.org/
Vendor Specific News/Changelog Entry: http://www.truecrypt.org/history.php

Credit

Julien Tinnes - julien.tinnesfrancetelecom.com -

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