Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Alain_B_150222's avatar
Alain_B_150222
Icon for Nimbostratus rankNimbostratus
May 23, 2017

Branch evaluation fails with Rule evaluation error: invalid command name "session.logon.last.username"

Hopefully somebody is able to enlighten me, I have the code below in a branch rule expression of an AD Query element. I get an 'Rule evaluation failed with error: invalid command name "session.logon....
access policy
BIG-IP Access Policy Manager (APM)
security
tcl
Anesh's avatar
Anesh
Icon for Cirrostratus rankCirrostratus
May 23, 2017

Try the below in if block:

session.logon.last.username  = return { [mcget {session.ad.last.attr.sAMAccountName}]}