Bug ID 520585: Changing Security Policy Application Language Is Not Validated or Propagated Properly

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.4.1, 11.5.3, 11.5.3 HF1, 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, 11.5.3 HF2

Opened: Apr 29, 2015

Severity: 3-Major

Symptoms

After changing the Application Language for a Security Policy and pushing the changes over a manual sync device group, the device group's status immediately returns to "Changes Pending". Additionally calls through the REST interface erroneously allowed a client to change the language for a policy where it was already set.

Impact

1) The change to encoding is not seen if looking at the result in tmsh. 2) In a manual sync group, after the change has been pushed to its peers, the change is correctly written to the MCP configuration when it is loaded. This appears as a new pending change from the peer device, and the device group appears out of sync again.

Conditions

A Security Policy was set to "Auto-Detect" the Application Language, and then set to a specific encoding. Or an application language is already set and is changed through the REST API. Issue is seen most prominently in a device group when ASM sync is enabled on a Manual Sync Failover Group

Workaround

Push another sync from the peer to the original device.

Fix Information

Changes to Language encoding are now validated and propagated correctly.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips