September 8, 2009

Ubuntu Security Notice 828-1: PAM vulnerability

Article Source Ubuntu Security Notices
September 8, 2009, 3:29 pm
Russell Senior discovered that the system authentication module selection mechanism for PAM did not safely handle an empty selection. If an administrator had specifically removed the default list of modules or failed to chose a module when operating debconf in a very unlikely non-default configuration, PAM would allow any authentication attempt, which could lead to remote attackers gaining access to a system with arbitrary privileges. This did not affect default Ubuntu installations...
 
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