Security Bulletin
Summary
Crypto Hardware Initialization and Maintenance (CHIM) as shipped with IBM Common Cryptographic Architecture (CCA) for MTM 4769 is affected by a vulnerability in Apache Log4j (CVE-2021-44832). CHIM is using Apache Log4j for internal logging purposes of regular user activity. The fix includes Apache Log4j 2.17.1.
Vulnerability Details
CVEID: CVE-2021-44832
DESCRIPTION: Apache Log4j could allow a remote attacker with permission to modify the logging configuration file to execute arbitrary code on the system. By constructing a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI , an attacker could exploit this vulnerability to execute remote code.
CVSS Base score: 6.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216189 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| Crypto Hardware Initialization and Maintenance (CHIM) | CHIM 3.0.0 for CCA 7.2.55 for MTM 4769 for Linux (setup4769_7.2.55.bin) |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by upgrading:
| Product(s) | Fixed Version(s) |
| Crypto Hardware Initialization and Maintenance (CHIM) |
CHIM 3.0.1 for CCA MTM 4769 for Linux x86-64 version 7.2.55 or later (setup4769_chim_log4j_patch_7.2.55.bin) Note: CCA MTM 4769 version 7.2.55 is no longer available for download; it has been superseded by version 7.3.44 (setup4769_7.3.44.bin) |
The fixed version can be obtained from the CCA Software Download Page.
Workarounds and Mitigations
For local administrative purposes the Crypto Node Management (CNM) tool can be used instead of Crypto Hardware Initialization and Maintenance (CHIM) for most administrative tasks.
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References
Acknowledgement
Change History
25 Apr 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
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Document Information
Modified date:
25 April 2022
UID
ibm16574773