IBM Support

PI81497: When one base DN is the subset of another in a federated repository, LDAP failures occur.

Fixes are available

9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
17.0.0.3: WebSphere Application Server Liberty 17.0.0.3
17.0.0.4: WebSphere Application Server Liberty 17.0.0.4
18.0.0.1: WebSphere Application Server Liberty 18.0.0.1
18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
18.0.0.4: WebSphere Application Server Liberty 18.0.0.4
19.0.0.1: WebSphere Application Server Liberty 19.0.0.1
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
19.0.0.2: WebSphere Application Server Liberty 19.0.0.2
19.0.0.3: WebSphere Application Server Liberty 19.0.0.3
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
19.0.0.6: WebSphere Application Server Liberty 19.0.0.6
19.0.0.7: WebSphere Application Server Liberty 19.0.0.7
19.0.0.8: WebSphere Application Server Liberty 19.0.0.8
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
19.0.0.9: WebSphere Application Server Liberty 19.0.0.9
19.0.0.10: WebSphere Application Server Liberty 19.0.0.10
19.0.0.11: WebSphere Application Server Liberty 19.0.0.11
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
19.0.0.12: WebSphere Application Server Liberty 19.0.0.12
20.0.0.1: WebSphere Application Server Liberty 20.0.0.1
20.0.0.2: WebSphere Application Server Liberty 20.0.0.2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
20.0.0.3: WebSphere Application Server Liberty 20.0.0.3
20.0.0.4: WebSphere Application Server Liberty 20.0.0.4
20.0.0.5: WebSphere Application Server Liberty 20.0.0.5
20.0.0.6: WebSphere Application Server Liberty 20.0.0.6
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
20.0.0.9: WebSphere Application Server Liberty 20.0.0.9
20.0.0.10: WebSphere Application Server Liberty 20.0.0.10
20.0.0.11: WebSphere Application Server Liberty 20.0.0.11
20.0.0.12: WebSphere Application Server Liberty 20.0.0.12
WebSphere Application Server traditional 9.0.5.6
21.0.0.3: WebSphere Application Server Liberty 21.0.0.3
9.0.5.7: WebSphere Application Server traditional Version 9.0.5 Fix Pack 7
21.0.0.4: WebSphere Application Server Liberty 21.0.0.4
21.0.0.5: WebSphere Application Server Liberty 21.0.0.5
21.0.0.6: WebSphere Application Server Liberty 21.0.0.6
9.0.5.8: WebSphere Application Server traditional Version 9.0.5.8
21.0.0.7: WebSphere Application Server Liberty 21.0.0.7
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
21.0.0.1: WebSphere Application Server Liberty 21.0.0.1
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
21.0.0.2: WebSphere Application Server Liberty 21.0.0.2
21.0.0.8: WebSphere Application Server Liberty 21.0.0.8
21.0.0.9: WebSphere Application Server Liberty 21.0.0.9
9.0.5.9: WebSphere Application Server traditional Version 9.0.5.9
21.0.0.10: WebSphere Application Server Liberty 21.0.0.10
21.0.0.11: WebSphere Application Server Liberty 21.0.0.11

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When on base DN is the subset of the other, federated
    repository does not access to the LDAP even though these two
    LDAP servers are independent.
    
    Following is the example of base DNs which hits the issue;
    
    <participatingBaseEntry name="ou=abc,o=xyz.com"/>
    <participatingBaseEntry name="o=xyz.com"/>
    
    With this configuration, users on the LDAP with base DN of
    "ou=abc,o=xyz.com" fail to be authenticated because
    federated
    repository does not access to to the LDAP.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server - Virtual Member Manager             *
    *                  (VMM)                                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: When one base DN is a subset of         *
    *                      another                                 *
    *                      base DN in a federated repository,      *
    *                      failures may occur.                     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When choosing which repository an entity belongs to, we were
    returning the first repository that matches the trailing RDNs
    of
    any base DN.
    Following is the example of base DNs which hits the issue;
    <participatingBaseEntry name="ou=abc,o=xyz.com"/>
    <participatingBaseEntry name="o=xyz.com"/>
    With this configuration, users on the LDAP with base DN of
    "ou=abc,o=xyz.com" fail to be authenticated.
    

Problem conclusion

  • We now search every repository to ensure we find a best match.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 8.0.0.14, 8.5.5.12, 9.0.0.5, and fix pack 17.0.0.3
    for WebSphere Application Server Liberty.
    Please refer to the Recommended Updates page for
    delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI81497

  • Reported component name

    WAS LIBERTY COR

  • Reported component ID

    5725L2900

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-05-11

  • Closed date

    2017-08-02

  • Last modified date

    2017-10-12

  • 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

    WAS LIBERTY COR

  • Fixed component ID

    5725L2900

Applicable component levels

  • RCD0 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSD28V","label":"WebSphere Application Server Liberty Core"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"CD0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
03 December 2021