Bug ID 531539: The NTLM login is not recognized as failed login.

Last Modified: Oct 01, 2018

Bug Tracker

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

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:
12.0.0, 11.6.0 HF6

Opened: Jul 02, 2015
Severity: 3-Major
Related AskF5 Article:
K05113177

Symptoms

The NTLM login is not recognized as failed login.

Impact

The brute force mitigation will not work in this case.

Conditions

-- A NTLM configured login page. -- The username arrives in UTF-16 (as curl sends it) or in another encoding that cannot be converted. -- The login fails.

Workaround

None.

Fix Information

This release fixes an issue regarding login pages with the NTLM authentication type.

Behavior Change