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 malicious users 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 Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
ibm web_application_firewall - |
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ibm g400_ips-g400-ib-1_appliance 31.030 |
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ibm gx4004_ips-gx4004-ib-2_appliance 31.030 |
Vulmon