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Linux-PAM Login Bypass Security Vulnerability
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Secunia Advisory:
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SA23858
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Release Date:
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2007-01-24
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Popularity:
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9,561 views
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Critical:
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Moderately 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: | Linux-PAM 0.x
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| CVE reference: | CVE-2007-0003
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Description:
A vulnerability has been reported in Linux-PAM, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an error within the "_unix_verify_password()" function in modules/pam_unix/support.c when verifying a user's password. This can be exploited to login with any given password if the hash in the passwd file is "!!" or similar.
The vulnerability is reported in version 0.99.7.0.
Solution:
Update to version 0.99.7.1.
Provided and/or discovered by:
Bernardo Innocenti
Original Advisory:
https://www.redhat.com/archives/pam-list/2007-January/msg00017.html
http://www.redhat.com/archives/fedora-devel-list/2007-January/msg01277.html
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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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