Bug ID 461084: Kerberos Auth might fail if client request contains Authorization header

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP APM(all modules)

Known Affected Versions:
11.4.1, 11.6.0, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0, 12.0.0 HF3, 11.6.1, 11.5.4 HF2

Opened: May 07, 2014

Severity: 3-Major

Related Article: K48281763


When the BIG-IP system is configured with Kerberos Auth agent and the client sends a request with an Authorization header prior to the "HTTP 401" challenge, authentication fails.


Authentication can fail and the client might see a login prompt again when the IP address changes.


An auth request to the BIG-IP systems contains Authorization header; Kerberos Auth is configured.



Fix Information

Client's Kerberos auth will succeed now.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips