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Vulnerability Score 5.0 5.0
CVE Id CVE-2011-3140
Last Modified 21 Sep 2011 11:32:44
Published 15 Aug 2011 05:55:03
Confidentiality Impact NONE NONE
Integrity Impact PARTIAL PARTIAL
Availability Impact NONE NONE
Access Vector NETWORK
Access Complexity LOW
Authentication NONE



IBM Web Application Firewall, as used on the G400 IPS-G400-IB-1 and GX4004 IPS-GX4004-IB-2 appliances with update 31.030, does not properly handle query strings with multiple instances of the same parameter, which allows remote attackers to bypass intended intrusion prevention by dividing a dangerous parameter value into substrings, as demonstrated by a SQL statement that is split across multiple iid parameters and then sent to a .aspx file on an IIS web server.

Vulnerable Systems


  • Ibm Web Application Firewall -



XF - http-parameter-pollution(67178)

BID - 48370

BUGTRAQ - 20110621 TWSL2011-006: IBM Web Application Firewall Bypass


SECTRACK - 1025683

SREASON - 8339

Last Updated: 27 May 2016 10:57:14