14242 : phpBB sessions.php autologinid Remote Privilege Escalation
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Info

Last Modified

6 months ago

Percent Complete

100%

Disclosure

Feb 27, 2005

Discovery

Jan 01, 2001

Dates

Exploit

Feb 28, 2005

Solution

Unknown

Description

phpBB contains a flaw that may allow a remote attacker to gain access to unauthorized privileges. The issue is triggered due to an error in the comparison of "sessiondata['autologinid']" and "auto_login_key". Further, phpBB does not reset the $userdata['user_level'] variable after a failed autologin. It is possible for a remote attacker to set a specially crafted cookie to change the user_id to that of an administrator resulting in a loss of integrity.

Classification

Location: Remote/Network Access Required
Attack Type: Authentication Management
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified
OSVDB: Web Related

Solution

Upgrade to version 2.0.13 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

phpBB Group
Watch-list
phpBB
Watch-list
2.0.4
2.0.5
2.0.0
2.0.1
2.0.2
2.0.3
2.0.6
2.0.7
2.0.8
2.0.9
2.0.10
2.0.11
2.0.12

References

Tools & Filters

Nessus

17225

Credit

  • Paisterist -

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