CVE-2011-3140
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.
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-264
- EPSS score
- 2.2% (82th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-3108)
- Published
- August 15, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-3108 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- ibm / g400 ips-g400-ib-1 appliance
- ibm / gx4004 ips-gx4004-ib-2 appliance
- ibm / web application firewall
References
- http://securityreason.com/securityalert/8339
- http://securitytracker.com/id?1025683(Exploit)
- http://www.iss.net/security_center/reference/vuln/HTTP_Parameter_Abuse.htm
- http://www.securityfocus.com/archive/1/518556/100/0/threaded
- http://www.securityfocus.com/bid/48370
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67178
- https://www.trustwave.com/spiderlabs/advisories/TWSL2011-006.txt(Exploit)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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