Bug ID 959537: APM does not respond to POST requests to a SAML resources

Last Modified: Jan 20, 2023

Bug Tracker

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

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,

Opened: Oct 27, 2020
Severity: 3-Major


POST requests to an IdP resource URI /saml/idp/res?id=<idp_resource> results in APM not responding (the issue also occurs with URI /saml/idp/res). The issue occurs when there is no Access session established yet. After an Access session is established, POST requests complete without issue.


POST requests to the URI /saml/idp/res... result in user-agent hanging and the request never completes


-- APM IdP Resource -- POST request to the URI /saml/idp/res... prior to Access session established


-- Refresh the request on the user-agent -- Configure environment to have user-agent do GET request method -- iRule that redirects user-agent from POST method to GET method. For EXAMPLE: when CLIENT_ACCEPTED { ACCESS::restrict_irule_events disable } when HTTP_REQUEST { if { [HTTP::uri] contains "/saml/idp/res" && [HTTP::method] eq "POST" } { if { [ACCESS::policy result] eq "" or [ACCESS::policy result] eq "not_started" } { HTTP::respond 302 "Location" "https://[HTTP::host][HTTP::uri]" "Connection" "Close" } } }

Fix Information


Behavior Change