CVE-2011-3140
IBM Web Application Firewall - Intrusion Prevention Bypass via Multiple Query Parameter Instances
Title source: llmDescription
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.
References (7)
Core 7
Core References
Exploit x_refsource_misc
https://www.trustwave.com/spiderlabs/advisories/TWSL2011-006.txt
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/67178
Third Party Advisory third-party-advisory
x_refsource_sreason
http://securityreason.com/securityalert/8339
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/48370
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/518556/100/0/threaded
Third Party Advisory x_refsource_confirm
http://www.iss.net/security_center/reference/vuln/HTTP_Parameter_Abuse.htm
Exploit vdb-entry
x_refsource_sectrack
http://securitytracker.com/id?1025683
Scores
EPSS
0.0215
EPSS Percentile
80.2%
Details
CWE
CWE-264
Status
published
Products (3)
ibm/g400_ips-g400-ib-1_appliance
31.030
ibm/gx4004_ips-gx4004-ib-2_appliance
31.030
ibm/web_application_firewall
Published
Aug 15, 2011
Tracked Since
Feb 18, 2026