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CVE-2011-3140

5.0 · MEDIUM

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…

Published Aug 15, 2011ibmCWE-264EPSS 2.15%

Overview

CVE-2011-3140 is a medium-severity vulnerability affecting ibm web_application_firewall. It was published on August 15, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from ibm. Update web_application_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refsecurityreason.com/securityalert/8339Refsecuritytracker.com/id?1025683Refwww.iss.net/security_center/reference/vuln/HTTP_Parameter_Abuse.htmRefwww.securityfocus.com/archive/1/518556/100/0/threadedRefwww.securityfocus.com/bid/48370Refexchange.xforce.ibmcloud.com/vulnerabilities/67178Refwww.trustwave.com/spiderlabs/advisories/TWSL2011-006.txtRefsecurityreason.com/securityalert/8339Refsecuritytracker.com/id?1025683Refwww.iss.net/security_center/reference/vuln/HTTP_Parameter_Abuse.htm

How CyberStrike helps

Frequently asked questions

What is CVE-2011-3140?

CVE-2011-3140 is a medium-severity vulnerability affecting ibm web_application_firewall. It was published on August 15, 2011 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2011-3140?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-3140?

Check the references section for vendor advisories and patches from ibm. Update web_application_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-3140?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-3140 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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