Security Bulletin: Multiple vulnerabilities in WebSphere Application Server shipped with IBM WebSphere Application Server Patterns

Summary

WebSphere Application Server is shipped as a component of IBM WebSphere Application Server Patterns. Information about security vulnerabilities affecting WebSphere Application Server have been published in a security bulletin.

Vulnerability Details

CVEID:CVE-2021-4104
**DESCRIPTION:**Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data when the attacker has write access to the Log4j configuration. If the deployed application is configured to use JMSAppender, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215048 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2021-45046
**DESCRIPTION:**Apache Log4j is vulnerable to a denial of service, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. A remote attacker with control over Thread Context Map (MDC) input data or a Thread Context Map pattern to exploit this vulnerability to craft malicious input data using a JNDI Lookup pattern and cause a denial of service.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215195 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

Principal Product and Version(s)

|

Affected Supporting Product and Version

—|—
IBM WebSphere Application Server Patterns, all versions| WebSphere Application Server:

• 9.0
• 8.5
• 8.0
• Liberty

Remediation/Fixes

Please consult the following security bulletin for vulnerability details and information about fixes

• Multiple vulnerabilities in Apache log4j affect the IBM WebSphere Application Server and IBM WebSphere Application Server Liberty (CVE-2021-4104, CVE-2021-45046)

Workarounds and Mitigations

None