PH34227: OIDC RP: SUPPORT THE BASIC_START_AUTHORIZATION SCOPE

PH39666: OIDC v1.3.2; OIDC RP: Initial login might fail when the OIDC stateId contains special characters

APAR status

• Closed as new function.

Error description

• When the OpenID Connect (OIDC) basic_start_authorization scope
  is set, check that the basic_start_authorization claim is set
  to true in idToken the initial token response. If it is not,
  the authentication request should fail.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  and OpenID Connect.                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: Support the basic_start_authorization   *
  *                      scope in the OpenID Connect relying     *
  *                      party.                                  *
  ****************************************************************
  * RECOMMENDATION:  Install a fix pack or interim fix that      *
  *                  contains this APAR.                         *
  ****************************************************************
  When the OIDC RP scope parameter includes
  basic_start_authorization, the RP should check that the idToken
  in
  the initial token response includes the
  basic_start_authorization
  claim and it is set to true.
  If it does not, the authentication request should fail.
  

Problem conclusion

• The OIDC RP is updated so that an authentication request will
  fail under the following condition:
  
  * The scope parameter includes the string
  basic_start_authorization
  -and-
  * The idToken in the initial token response does not include a
  basic_start_authorization claim that is set to true.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.20 and 9.0.5.8. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R850 PSY

     UP

• R900 PSY

     UP