PI64573: A 403 ERROR MAY OCCUR WHEN USING THE OIDC RP

Fixes are available

APAR status

Closed as program error.

Error description

A 403 error may occur when the OpenID Connect Relying Party is
a partner with an OpenID Connect provider that URL encodes the
state parameter.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All IBM WebSphere Application Server users  *
*                  of OpenID Connect Relying Party             *
****************************************************************
* PROBLEM DESCRIPTION: A 403 Error may occur when using the    *
*                      OIDC RP                                 *
****************************************************************
* RECOMMENDATION:  Install a fix pack or interim fix that      *
*                  contains this APAR.                         *
****************************************************************
A 403 error may occur when the OpenID Connect Relying Party is
a partner with an OpenID Connect provider that URL encodes the
state parameter.

Problem conclusion

The OpenID Connect specification states that the state
parameter must be returned to the client without modification.
Because of the way that the WebSphere OpenID Connect Relying
Party (RP) is constructing the state parameter, if the OpenID
Connect provider (OP) sanitizes the state parameter by URL
encoding it, the state parameter will appear to be modified
and a 403 error will result.

The OpenID Connect RP is modified to ensure that the state
parameter is created in a way that URL encoding it will not
change its contents.

The fix for this APAR is currently targeted for inclusion in
fix pack 8.0.0.13, 8.5.5.11 and 9.0.0.2.  Please refer to the
Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Keywords: IBMWL3WSS, OIDC

Temporary fix

Comments

APAR Information

APAR number
PI64573
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-06-21
Closed date
2016-06-23
Last modified date
2016-09-14

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

R800 PSY
UP
R850 PSY
UP
R900 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI64573: A 403 ERROR MAY OCCUR WHEN USING THE OIDC RP

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R800 PSY

R850 PSY

R900 PSY

Document Information

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