Bug ID 601178: HTTP cookie persistence 'preferred' encryption

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2

Fixed In:
13.0.0, 12.1.2, 11.6.1 HF2, 11.5.9

Opened: Jun 23, 2016

Severity: 3-Major

Symptoms

When encryption is 'preferred' in the http cookie persistence profile, when the client presents a plain-text route domain formatted cookie the BIG-IP will ignore the cookie and re-load balance the connection.

Impact

Cookie does not get accepted by the persistence profile and flow does not persist.

Conditions

This occurs when route-domain-compatible cookies are sent in plaintext.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips