Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP ASM
Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5
Fixed In:
12.1.0, 12.0.0, 11.6.0 HF6
Opened: Jul 03, 2015 Severity: 3-Major
In some web applications, the navigation flow may break (connection reset) if a main URL (login page, for example) is responding with a content that is not an HTML one, or if the response is dynamic, and occasionally not an HTML one.
Users may experience a connection reset while navigating through the website, usually after several minutes.
Proactive Bot Defense is enabled on a DOS profile that is attached to a Virtual Server, and one of the main URLs of the web application (login page, home page, etc.) occasionally responds with a non-HTML content, blank content, or redirect response with no body.
None
Connection resets are no longer experienced on normal web navigation of a site that is protected by the Proactive Bot Defense mechanism, and one of the main pages of the web application occasionally responds with a non-HTML content.