Security Bulletin: IBM WebSphere Application Server is vulnerable to an XML External Entity (XXE) Injection vulnerability (CVE-2023-27554)

Summary

IBM WebSphere Application Server is vulnerable to an XML External Entity (XXE) Injection vulnerability. This has been addressed in the remediation section.

Vulnerability Details

CVEID:CVE-2023-27554
**DESCRIPTION:**IBM WebSphere Application Server is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources. IBM X-Force ID: 249185.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249185 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:L)

Affected Products and Versions

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now by applying a currently available interim fix or fix pack that contains the APAR PH53252.

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.15:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH53252
--OR–
· Apply Fix Pack 9.0.5.16 or later (targeted availability 2Q2023).

For V8.5.0.0 through 8.5.5.23:
· Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH53252
--OR–
· Apply Fix Pack 8.5.5.24 or later (targeted availability 3Q2023).

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

Workarounds and Mitigations

None