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[security:low, CVE-2021-35473] OAuth2 handler does not verify access token validity

Concerned version

Version: %2.0.4 to %2.0.11

Summary

  • Configure an OIDC client
  • Configure a OAuth2 handler
  • Set access token lifetime to 10 seconds
  • Use Access Token from OIDC client to access the OAuth2 handler => works
  • Wait 30 seconds
  • Use Access Token from OIDC client to access the OAuth2 handler => WORKS
  • /userinfo or /introspection correctly show that the token is expired

Logs

[debug] Found OAuth2 access token 597d0faa693e96f08823e73164c87366b586104f575dcc648cf7b90a88b8988e
[debug] Get OIDC session 597d0faa693e96f08823e73164c87366b586104f575dcc648cf7b90a88b8988e
# missing validation here
[debug] Get user session id 59941a30e71df1c86fb05e14eec697264ca38311b18c082731230af6f23f8787
Edited by Yadd