High · published October 15, 2025
⚡ A lengthy URL can trip up your BIG-IP WAF, causing the bd process to crash repeatedly! Talk about a message too long to handle! 🔥 This is like a restaurant server trying to take a group order that’s longer than the menu itself. Instead of efficiently fulfilling requests, the kitchen gets overwhelmed and shuts down! If your URL exceeds 1024 characters, your security policy can become a bottleneck, causing process terminations that could leave your system vulnerable. This could lead to disruptions in your web application firewall, impacting your overall security stance and availability.
This is like a restaurant server trying to take a group order that’s longer than the menu itself. Instead of efficiently fulfilling requests, the kitchen gets overwhelmed and shuts down! This vulnerability occurs when the Data Guard Protection Enforcement setting is configured with a URL longer than 1024 characters, causing the bd process in BIG-IP Advanced WAF or ASM to terminate unexpectedly.
If your URL exceeds 1024 characters, your security policy can become a bottleneck, causing process terminations that could leave your system vulnerable. This could lead to disruptions in your web application firewall, impacting your overall security stance and availability. To resolve this issue, ensure that URLs are kept under the 1024 character limit. Review your security policy settings and update to a supported version of BIG-IP WAF or ASM that is still under Technical Support. Regularly monitor and audit policies to prevent similar issues from arising. You've got this! With these steps, your BIG-IP WAF will be back in action in no time! 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| f5/big-ip_advanced_web_application_firewall | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_advanced_web_application_firewall | all versions | — |
| f5/big-ip_application_security_manager | ≥ 17.1.0, < 17.1.3 | 17.1.3 |
| f5/big-ip_application_security_manager | all versions | — |