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Insecure Library Loading
Not critical

pam_ssh "allow_blank_passphrase" Bypass Security Issue

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Release Date:  2007-02-08    Last Update:  2007-02-09    Views:  11,844

Secunia Advisory SA24061

Where:

From remote

Impact:

Security Bypass

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


A security issue has been reported in pam_ssh, which can be exploited by malicious users to bypass certain security restrictions.

The security issue is caused due to pam_ssh not properly restricting the use of private keys with a blank password, even if the "allow_blank_password" option is disabled. This can be exploited to use private keys with blank passphrases by entering a random, non-blank passphrase when prompted.

The security issue is reported in version 1.91.


Solution:
Update to version 1.92.

Provided and/or discovered by:
The vendor credits Rob Henderson.

Original Advisory:
http://sourceforge.net/project/shownotes.php?release_id=484376

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: pam_ssh "allow_blank_passphrase" Bypass Security Issue

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