Last Modified: Sep 13, 2023
BIG-IP ASM, LTM
Known Affected Versions:
12.1.0, 12.1.1, 12.1.2
Opened: Feb 14, 2017 Severity: 3-Major
Websocket connection should be closed once an endpoint has both sent and received a Close control frame. BIG-IP closes connection on receiving a close frame from peer and does not wait for close frame from other endpoint. This results in data sent in the other direction to be dropped.
One endpoint sends a Websocket Close control frame. Other endpoint continues sending data which is dropped by BIG-IP.
Websocket and HTTP profile are attached to the virtual.
Half-close of connection will be triggered instead of closing the connection entirely.