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TITLE:
DeluxeBB Authentication Bypass Security Issue

SECUNIA ADVISORY ID:
SA42154

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42154/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42154

RELEASE DATE:
2010-11-09

DISCUSS ADVISORY:
http://secunia.com/advisories/42154/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42154/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=42154

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been discovered in DeluxBB, which can be
exploited by malicious people to bypass certain security
restrictions.

The security issue is caused due to an error in the authentication
mechanism in pm.php. This can be exploited e.g. to access a user's
inbox or send messages as a user by setting the cookie parameters
"membercookie" to the user's username, "memberid" to the user's id,
and "memberpw" to an arbitrary value.

The security issue is confirmed in version 1.3. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that authentication is correctly
enforced.

PROVIDED AND/OR DISCOVERED BY:
Vis Intelligendi

ORIGINAL ADVISORY:
http://vis-intelligendi.co.cc/show.php?id=14

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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