BIG-IP iRule or LTM policy may generate multiple HTTP redirect responses:
A security advisory highlights a vulnerability in BIG-IP systems that can result in the generation of multiple HTTP redirect responses when certain conditions are met. This occurs if a virtual server has specific configurations, including an iRule or LTM policy for redirecting HTTP requests based on request content, and if it processes a malformed HTTP request. The impact of this vulnerability can lead to multiple unexpected HTTP redirect responses being cached by intermediate systems and received by clients. F5 has assigned IDs to this issue and classified it as CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling'). Users are recommended to update to fixed versions or apply a mitigation iRule to affected virtual servers.
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F5 Security Advisory K000137322