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pam_ssh "allow_blank_passphrase" Bypass Security Issue
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Secunia Advisory:
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SA24061
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Release Date:
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2007-02-08
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Last Update:
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2007-02-09
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Popularity:
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7,193 views
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Critical:
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Not critical
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Impact:
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Security Bypass
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | pam_ssh 1.x
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| CVE reference: | CVE-2007-0844
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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.
Changelog:
2007-02-09: Added CVE reference.
Original Advisory:
http://sourceforge.net/project/shownotes.php?release_id=484376
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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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