[MajorSecurity Advisory #46]Plogger - Session fixation Issue
Product: Plogger
Remote-Exploit: yes
Vendor-URL: http://www.plogger.org
Vendor-Status: informed
Advisory-Status: published
Discovered by: David Vieira-Kurz
http://www.majorsecurity.de
http://www.majorsecurity.de/index_2.php?major_rls=major_rls46
"Plogger is the next generation in open-source photo gallery systems." -from plogger.org
1.1 Description:
In a session fixation attack, the attacker fixes the user's session ID before the user even logs into the target server.
After a user's session ID has been fixed, the attacker will wait for them to login.
Once the user does so, the attacker uses the predefined session ID value to assume their online identity.
2.Regenerate SID on each request.
if ( ! isset( $_SESSION['SERVER_GENERATED_SID'] ) ) {
session_destroy(); // destroy all data in session
}
session_regenerate_id(); // generate a new session identifier
$_SESSION['SERVER_GENERATED_SID'] = true;
22.04.2007 discovery of the vulnerability
23.04.2007 contacted the vendor
23.04.2007 working patch sent to the vendor
24.04.2007 advisory is written
24.04.2007 advisory released
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which consists of only one person at the present time.
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