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TrueCrypt External Command Execution Vulnerability
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Secunia Advisory:
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SA19903
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Release Date:
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2006-05-01
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Last Update:
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2007-09-04
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Popularity:
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7,938 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | TrueCrypt 4.x
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| CVE reference: | CVE-2006-2183
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Description:
Julien Tinnes has reported a vulnerability in Truecrypt, which potentially can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to the unsafe use of the "execvp()" function to execute external commands without sanitising the user's current PATH settings. This can potentially be exploited by local users to execute arbitrary commands with root privileges via specially-crafted PATH settings.
Successful exploitation requires that the root user has specified Truecrypt to be installed suid root during the installation process (non-default).
The vulnerability has been reported in version 4.1. Prior versions may also be affected.
Solution:
Update to version 4.2.
http://www.truecrypt.org/downloads.php
Provided and/or discovered by:
Julien Tinnes
Changelog:
2006-05-08: Added CVE reference.
2007-09-04: Removed not affected versions from product list.
Original Advisory:
http://lists.immunitysec.com/pipermail/dailydave/2006-April/003152.html
TrueCrypt:
http://www.truecrypt.org/history.php
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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