Geeklog contains a flaw that may allow a remote attacker to arbitrary access user accounts. The issue is triggered when issuing permanent cookies. It is possible that the flaw may allow a remote attacker with a valid account to modify the UID of the own authentication cookie to that of a target account resulting in a loss of integrity.
Classification
Location:
Remote/Network Access Required
Attack Type:
Hijacking
Impact:
Loss of Integrity
Exploit:
Exploit Unknown
Disclosure:
OSVDB Verified
OSVDB:
Web Related
Solution
Upgrade to version 1.3.1 or higher, as it has been reported to fix this vulnerability. In addition, Tony Bibbs has released a patch for some older versions.