Bug ID 1018877: Subsession variable values mixing between sessions

Last Modified: Sep 23, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP APM(all modules)

Known Affected Versions:
14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4

Opened: May 17, 2021
Severity: 3-Major

Symptoms

Subsession variable lookup internally assumes that a complete session DB lookup name (Session ID + Subsession key) is used. However, when using the lookup table, only the subsession key is passed in.

Impact

A Per-Request Policy execution may get the value of the subsession variable from a different APM session.

Conditions

Subsession variables are referenced in the Per-Request Policy outside of the Subsession without the Session ID.

Workaround

Add the session ID to the reference to the subsession variables used in Per-Request Policies.

Fix Information

None

Behavior Change