Vulnerability CVE-2005-3416
Published: 2005-11-01   Modified: 2012-02-12

Description:
phpBB 2.0.17 and earlier, when register_globals is enabled and the session_start function has not been called to handle a session, allows remote attackers to bypass security checks by setting the $_SESSION and $HTTP_SESSION_VARS variables to strings instead of arrays, which causes an array_merge function call to fail.

See advisories in our WLB2 database:
Topic
Author
Date
High
phpBB Multiple Vulnerabilities
Stefan Esser
31.10.2005

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Phpbb group -> Phpbb 

 References:
http://www.securityfocus.com/bid/15243
http://securitytracker.com/id?1015121
http://marc.theaimsgroup.com/?l=bugtraq&m=113081113317600&w=2
http://www.hardened-php.net/advisory_172005.75.html
http://secunia.com/advisories/17366
http://www.osvdb.org/20413
http://www.debian.org/security/2005/dsa-925
http://securityreason.com/securityalert/130
http://secunia.com/advisories/18098
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