SNS Vulnerability

MyBB Advanced Forum Signatures Plugin Multiple SQL Injection Vulnerabilities

Description

Multiple vulnerabilities have been discovered in the Advanced Forum Signatures plugin for MyBB, which can be exploited by malicious users to conduct SQL injection attacks.
Input passed to the "afs_type", "afs_background", "afs_showonline", "afs_bar_left", "afs_bar_center", "afs_bar_right", and "afs_full_line1" through "afs_full_line6" parameters in signature.php is not properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
The vulnerabilities are confirmed in version 2.0.4. Other versions may also be affected.

Vulnerable Products

Vulnerable Software:
Advanced Forum Signatures 2.x (plugin for MyBB)

Solution

Edit the source code to ensure that input is properly sanitised.

CVE

References

http://www.exploit-db.com/exploits/17961/

Vulnerability Manager Detection

IPS Protection

ASQ Engine alarm	Available Since
SQL injection Prevention - POST : suspicious SELECT statement in data	3.2.0
SQL injection Prevention - POST : possible version probing in data	3.2.0
SQL injection Prevention - GET : suspicious CAST statement in URL	3.2.0
SQL injection Prevention - GET : suspicious DECLARE statement in URL	3.2.0
SQL injection Prevention - POST : suspicious OPENQUERY statement in data	3.2.0
SQL injection Prevention - POST : suspicious CREATE statement in data	3.2.0
SQL injection Prevention - POST : suspicious UPDATE statement in data	3.2.0
SQL injection Prevention - POST : suspicious UNION statement in data	3.2.0
SQL injection Prevention - POST : suspicious DROP statement in data	3.2.0
SQL injection Prevention - POST : suspicious INSERT statement in data	3.2.0
SQL injection Prevention - POST : suspicious OR statement in data	3.2.0
SQL injection Prevention - POST : suspicious EXEC statement in data	3.2.0
SQL injection Prevention - POST : suspicious OPENROWSET statement in data	3.2.0
SQL injection Prevention - POST : suspicious DECLARE statement in data	3.2.0
SQL injection Prevention - POST : suspicious HAVING statement in data	3.2.0
SQL injection Prevention - POST : suspicious CAST statement in data	3.2.0
SQL injection Prevention - POST : suspicious UPDATE statement in data	5.0.0
SQL injection Prevention - POST : suspicious SELECT statement in data	5.0.0
SQL injection Prevention - POST : suspicious DECLARE statement in data	5.0.0
SQL injection Prevention - POST : suspicious OPENROWSET statement in data	5.0.0
SQL injection Prevention - POST : suspicious OPENQUERY statement in data	5.0.0
SQL injection Prevention - POST : suspicious CAST statement in data	5.0.0
SQL injection Prevention - POST : suspicious EXEC statement in data	5.0.0
SQL injection Prevention - POST : suspicious CREATE statement in data	5.0.0
SQL injection Prevention - POST : suspicious INSERT statement in data	5.0.0
SQL injection Prevention - POST : suspicious DROP statement in data	5.0.0
SQL injection Prevention - POST : suspicious HAVING statement in data	5.0.0
SQL injection Prevention - POST : suspicious UNION statement in data	5.0.0
SQL injection Prevention - POST : suspicious OR statement in data	5.0.0
SQL injection Prevention - POST : possible version probing in data	5.0.0

Risk level

Moderate

Vulnerability First Public Report Date

2011-10-11

Target Type

Server

Possible exploit

Remote