PH44467: OIDC TAI: FILTER REQUESTS BASED ON THE ISS CLAIM IN THE JWT

APAR status

• Closed as program error.

Error description

• Update the OpenID Connect (OIDC) Trust Association Interceptor
  (TAI) so that it can intercept requests based on the issuer in
  the JSON Web Token (JWT) in the Authorization header of the
  HTTP request for JWT authentication.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  and OpenID Connect                          *
  ****************************************************************
  * PROBLEM DESCRIPTION: Update the OIDC TAI to allow requests   *
  *                      to                                      *
  *                      be intercepted based on the issuer in   *
  *                      the                                     *
  *                      JWT in the Authorization header.        *
  ****************************************************************
  * RECOMMENDATION:  Install a fix pack or interim fix that      *
  *                  contains this APAR.                         *
  ****************************************************************
  The OIDC TAI has the provider_(id).filter,
  provider_(id).interceptedPathFilter, and
  provider_(id).excludedPathFilter properties that allow it to
  intercept requests based on attributes of the HTTP request.  It
  can be difficult to craft a filter set using just these
  properties to intercept HTTP requests in the way that you want.
  If you want to simply accept all requests from a specific
  issuer, https://ibm.com for example, there is no way to
  accomplish that with the current filter mechanism.
  

Problem conclusion

• The OIDC TAI is updated to allow an administrator to configure
  the TAI so that it will intercept requests based on the iss
  claim in the JWT in the Authorization header of the HTTP
  request.
  
  A new OIDC TAI property is added:
  
  Name: provider_(id).allowJwtIssuerSelection
  Values: true/false , default=false
  Description:
  Set this property to true if want to allow the runtime to filter
  requests based the iss claim in the JWT in the Authorization
  header of the HTTP request. The filter will match if the iss
  claim in the JWT matches this provider's issuer. If there is
  more than one provider entry with the same issuer name, only one
  of the provider entries can have this property set to true,
  otherwise this property is set to false for all matching
  issuers. When this property is set to true, it will override the
  value of the provider_(id).useIssuer property and set it to
  true.
  
  When the provider_(id).useJwtFromRequest property is set to no,
  this property has no effect. This filter is applied after the
  provider_(id).filter and provider_(id).interceptedPathFilter
  filters.
  
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.22 and 9.0.5.12. 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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels