IBM Support

Security Bulletin: Apache Log4j vulnerability affects IBM Secure External Authentication Server (CVE-2021-4104)

Security Bulletin


Summary

IBM Sterling External Authentication Server is vulnerable to an arbitrary code execution due to Apache Log4j, which is used for logging (CVE-2021-44832). The fix upgrades all Apache Log4j 1.x to Apache Log4j 2.17.1.

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)

Affected Products and Versions

Affected Product(s)Version(s)
IBM Sterling External Authentication Server6.0.3
IBM Sterling External Authentication Server6.0.2
IBM Sterling External Authentication Server2.4.3.2

Remediation/Fixes

ProductVRMFiFixRemediation
IBM Sterling External Authentication Server6.0.3iFix 01 Plus Build 141Fix Central - 6030
IBM Sterling External Authentication Server6.0.2iFix 04 Plus Build 214Fix Central - 6020
IBM Sterling External Authentication Server2.4.3.2iFix 13 Plus Build 296Fix Central - 2432
This fix also remediates CVE-2021-44228, CVE-2021-45046, CVE-2021-45105 and CVE-2021-44832.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support alerts like this.

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

07 Jan 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS6PNW","label":"IBM Sterling Secure Proxy"},"Component":"Sterling External Authentication Server","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"},{"code":"PF027","label":"Solaris"},{"code":"PF010","label":"HP-UX"}],"Version":"6.0.3, 6.0.2, 2.4.3.2","Edition":"","Line of Business":{"code":"LOB59","label":"Sustainability Software"}}]

Document Information

Modified date:
07 January 2022

Initial Publish date:
07 January 2022

UID

ibm16538954

Page Feedback