Last Modified: May 29, 2024
Affected Product(s):
BIG-IP APM
Known Affected Versions:
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, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4
Opened: Jan 09, 2023 Severity: 3-Major
APM Websso decrypts id_token incorrectly when OIDC id_token is larger than ~5mb. The generated token size can be larger when the user belongs to many groups.
Access to applications will fail due to incorrect processing of the access token.
1) configure BIG-IP as oauth client and Resource server and Authorization server as Azure AD 2) configure Azure AD such that it sends a large token. )access policy start -> oauth client ->scope ->allow 3)create a oauth bearer sso in "passthrough" mode and send token on 4xx response 4)attach sso to access policy 5)attach the access policy to the virtual server
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