Bug ID 1078065: The login page shows blocking page instead of CAPTCHA or showing blocking page after resolving a CAPTCHA.

Last Modified: Jan 16, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP ASM(all modules)

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1

Opened: Feb 03, 2022
Severity: 3-Major

Symptoms

The login page shows a blocking page instead of CAPTCHA or shows the blocking page after resolving a CAPTCHA. Make five (configured in brute force configuration) failed login attempts and you will receive a blocking page. Blocking Reason: Resource not qualified for injection.

Impact

Users are blocked after failed login attempts.

Conditions

HTML response message has an html page with a length greater than 32000 bytes.

Workaround

Run tmsh modify sys db asm.cs_qualified_urls value <url value>.

Fix Information

None

Behavior Change