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Insecure Library Loading
Not critical

TrueCrypt "setuid" Local Denial of Service and Privilege Escalation

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Release Date:  2007-03-28    Last Update:  2007-05-21    Views:  12,182

Secunia Advisory SA24643

Where:

Local system

Impact:

Privilege escalation, DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Tim Rees has discovered a security issue in TrueCrypt, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain escalated privileges.

The security issue is caused if the "truecrypt" binary is installed setuid root. This can be exploited to cause a DoS or gain escalated privileges by e.g. mounting a malicious TrueCrypt disk into /usr/bin or another user's home directory.

Successful exploitation requires that TrueCrypt is installed setuid root (not default setting).

The security issue is confirmed in version 4.3. Other versions may also be affected.


Solution:
Update to version 4.3a.

Provided and/or discovered by:
Tim Rees

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: TrueCrypt "setuid" Local Denial of Service and Privilege Escalation

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