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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.2109
    Security Bulletin: WebSphere Application Server is vulnerable to a
            Privilege Escalation vulnerability (CVE-2021-29754)
                               11 June 2021

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           WebSphere Application Server
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   IBM i
                   Linux variants
                   Solaris
                   Windows
                   z/OS
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-29754  

Original Bulletin: 
   https://www.ibm.com/support/pages/node/6462627

- --------------------------BEGIN INCLUDED TEXT--------------------

WebSphere Application Server is vulnerable to a Privilege Escalation
vulnerability (CVE-2021-29754)

Document Information

Document number    : 6462627
Modified date      : 10 June 2021
Product            : WebSphere Application Server
Software version   : 7.0, 8.0, 8.5, 9.0
Operating system(s): AIX
                     HP-UX
                     IBM i
                     Linux
                     Solaris
                     Windows
                     z/OS
Edition            : Advanced,Base,Developer,Enterprise,Express,Network Deployment,Single Server

Summary

WebSphere Application Server is vulnerable to a privilege escalation
vulnerability. This has been addressed.

Vulnerability Details

CVEID: CVE-2021-29754
DESCRIPTION: IBM WebSphere Application Server is vulnerable to a privilege
escalation vulnerability when using the SAML Web Inbound Trust Association
Interceptor (TAI).
CVSS Base score: 4.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/
202006 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N)

Affected Products and Versions

+----------------------------+----------+
|Affected Product(s)         |Version(s)|
+----------------------------+----------+
|WebSphere Application Server|9.0       |
+----------------------------+----------+
|WebSphere Application Server|8.5       |
+----------------------------+----------+
|WebSphere Application Server|8.0       |
+----------------------------+----------+
|WebSphere Application Server|7.0       |
+----------------------------+----------+

Remediation/Fixes

For WebSphere Application Server traditional and WebSphere Application Server
Hypervisor Edition:

For V9.0.0.0 through 9.0.5.7:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH36253
- --OR--
. Apply Fix Pack 9.0.5.8 or later (targeted availability 2Q2021).

For V8.5.0.0 through 8.5.5.19:
. Upgrade to minimal fix pack levels as required by interim fix and then apply
Interim Fix PH36253
- --OR--
. Apply Fix Pack 8.5.5.20 or later (targeted availability 3Q2021).

For V8.0.0.0 through 8.0.0.15:
. Upgrade to 8.0.0.15 and then apply Interim Fix PH36253

For V7.0.0.0 through 7.0.0.45:
. Upgrade to 7.0.0.45 and then apply Interim Fix PH36253

Additional interim fixes may be available and linked off the interim fix
download page.

WebSphere Application Server V7.0 and V8.0 are no longer in full support; IBM
recommends upgrading to a fixed, supported version/release/platform of the
product.

Workarounds and Mitigations

Mitigations for this issue are available. Please refer to the Interim Fix
PH36253 for details.

Change History

10 June 2021: Initial Publication

- --------------------------END INCLUDED TEXT--------------------

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