Bug ID 1518605: Duplicate Set-Cookie headers in NTLM 200 OK Response

Last Modified: Aug 26, 2024

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

Known Affected Versions:
15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 16.1.5

Opened: Feb 13, 2024

Severity: 3-Major

Symptoms

The Set-Cookie headers from previous 401 responses are merged into the final 200 OK response before sending it to client. This operation causes SSO to fail as the wrong Set-Cookie header is parsed on the client side.

Impact

Duplicate cookies are sent to the client side and SSO negotiation fails.

Conditions

-- NTLM SSO configured -- The server sides sends one or more 401 responses to the BIG-IP system during the transaction, followed by a 200 response

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips