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PH42862: Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server (CVE-2021-44790 CVSS 9.8 and more)

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Abstract

Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server (CVE-2021-44790 CVSS 9.8 and more)

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THIS FIX IS SUPERSEDED BY LATER INTERIM FIXES
The WebSphere Application Server interim fix for this fix for APAR PH44271. Download and install the fix for PH44271 to resolve PH42862.
PH42862 resolves the following problem:

ERROR DESCRIPTION:
Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server (CVE-2021-44790 CVSS 9.8 and more)

PROBLEM SUMMARY:
Multiple vulnerabilities in IBM HTTP Server used by WebSphere Application Server (CVE-2021-44790 CVSS 9.8 and more)

PROBLEM CONCLUSION:
Confidential for CVE-2021-44790, CVE-2021-44224

The fix for this APAR is targeted for inclusion in IBM HTTP
Server fix pack 9.0.5.11. For more information, see
'Recommended Updates for WebSphere Application Server':
https://www.ibm.com/support/pages/node/715553
This fix supersedes (includes) the fix for PH42587 and PH41945
MITIGATION:
  • CVE-2021-44790: If "LoadModule lua_module modules/mod_lua.so" appears in any IHS configuration file (httpd.conf by default), AND any customer-provided Lua script uses the r:parsebody function, comment out the LoadModule directive by prefixing it with the # character until the fix can be applied.
  • CVE-2021-44224: If "ProxyRequests ON" is present in any IHS configuration file (httpd.conf) by default, change the value to OFF until the fix can be applied.

Prerequisites

None

Installation Instructions

Review the readme.txt for detailed installation instructions.

URL SIZE(Bytes)
V90 readme 2378
V90 readme 1743

Download Package

THIS FIX IS SUPERSEDED BY LATER INTERIM FIXES
The WebSphere Application Server interim fix for this fix for APAR PH44271. Download and install the fix for PH44271 to resolve PH42862.

Problems Solved

PH42862, PH42587, PH41945

Change History

February 7, 2022: Replace PH42862 interim fixes with PH43887.

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Technical Support

Contact IBM Support at https://www.ibm.com/software/mysupport/s/ or 1-800-IBM-SERV (US only).

Document Location

Worldwide

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Document Information

Modified date:
03 March 2022

UID

ibm16538416

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