Info

Disclosure

Oct 31, 2005

Discovery

Aug 14, 2005

Dates

Exploit

Unknown

Solution

Unknown

Description

phpBB contains a flaw that may allow a remote attacker to bypass the globals deregistration code (register_globals). The flaw exists because the application starts not knowing the values of the $_SESSION or $HTTP_SESSION_VARS variables. It is possible a user can supply arbitrary values to these variables which will cause the register_globals setting to be ignored, allowing for cross-site scripting or SQL injection attacks.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Rumored
Disclosure: OSVDB Verified, Vendor Verified
OSVDB: Web Related

Solution

Upgrade to version 2.0.18 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

phpBB Group

phpBB

2.0.17

References

Security Tracker: 1015121
Bugtraq ID: 15243
Secunia Advisory ID: 17366 18098
CVE ID: 2005-3416 (see also: NVD)
Related OSVDB ID: 20386 20387 20388 20389 20390 20391 20414
ISS X-Force ID: 22914
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2005-10/0637.html
Vendor Specific Advisory URL: http://www.debian.org/security/2005/dsa-925
Other Advisory URL: http://www.hardened-php.net/advisory_172005.75.html
Vendor Specific News/Changelog Entry: http://www.phpbb.com/support/documents.php?mode=changelog#2017

Credit

Stefan Esser - sesserhardened-php.net - www.hardened-php.net

Direct URL: http://osvdb.org/20413