Security Bulletin: IBM HTTP Server is vulnerable to information disclosure due to the included Apache HTTP Server (CVE-2023-31122)

Summary

IBM HTTP Server is vulnerable to information disclosure when using the mod_macro module due to the included Apache HTTP Server.

Vulnerability Details

CVEID:CVE-2023-31122
**DESCRIPTION:**Apache HTTP Server could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read flaw in the mod_macro module. By sending a specially crafted request, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/269041 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

This vulnerability affects the following version and release of IBM HTTP Server (powered by Apache) component in all editions of IBM WebSphere Application Server and bundling products.

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains APAR PH57715.

For IBM HTTP Server used by IBM WebSphere Application Server:

For V9.0.0.0 through 9.0.5.17:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH57715
--OR–
· Apply Fix Pack 9.0.5.18 or later (targeted availability 4Q2023).

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

Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and
integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will
be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential
risk.

Workarounds and Mitigations

None