Security Bulletin
Summary
Log4j is used by IBM Watson Machine Learning Accelerator for generating logs in some of its components. This bulletin provides mitigations for the Log4j vulnerability (CVE-2021-44228) by applying workaround steps to IBM Watson Machine Learning Accelerator.
Vulnerability Details
Refer to the security bulletin(s) listed in the Remediation/Fixes section
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Watson Machine Learning Accelerator | 1.2.1; 1.2.2; 1.2.3 |
| IBM Watson Machine Learning Accelerator | 2.3.0; 2.3.1; 2.3.2; 2.3.3 |
Remediation/Fixes
Patch will be released once available.
| Affected Product(s) | Version(s) | Remediation |
| IBM Watson Machine Learning Accelerator | 1.2.1; 1.2.2; 1.2.3 | Follow Workaround and mitigation steps below |
| IBM Watson Machine Learning Accelerator | 2.3.0; 2.3.1; 2.3.2; 2.3.3 | To address the vulnerability upgrade to IBM Watson Machine Learning Accelerator 2.3.4: https://www.ibm.com/docs/en/wmla/2.3?topic=installation-install-upgrade |
Workarounds and Mitigations
If unable to upgrade to the latest version 2.3.4, IBM strongly recommends mitigating the vulnerability in version 1.2.x now by executing the workaround and mitigation steps as outlined below.
Environment:
Linux x86_64, ppc64le
Workaround and mitigation steps:
Note: For IBM Watson Machine Learning Accelerator version 1.2.1, you must install the Interim fix 536919.
Refer to the details documented here: https://www.ibm.com/docs/en/wmla/1.2.1?topic=accelerator-interim-fixes
1. Apply the fix of “Vulnerability in Apache Log4j addressed in IBM Spectrum Conductor” by following the security bulletin: https://www.ibm.com/support/pages/node/6526754
2. Log on to the primary host as the cluster administrator, stop dlpd service
> source installation_top/profile.platform
> egosh user logon -u Admin -x Admin_password
> egosh service stop dlpd
3. Log on to each management host and remove the following class from the jar files
For IBM Watson Machine Learning Accelerator version 1.2.1:
zip -q -d $EGO_TOP/dli/1.2.3/dlpd/lib/log4j-core-2.7.jar org/apache/logging/log4j/core/lookup/JndiLookup.class
For IBM Watson Machine Learning Accelerator version 1.2.2:
zip -q -d $EGO_TOP/dli/1.2.4/dlpd/lib/log4j-core-2.7.jar org/apache/logging/log4j/core/lookup/JndiLookup.class
For IBM Watson Machine Learning Accelerator version 1.2.3:
zip -q -d $EGO_TOP/dli/1.2.5/dlpd/lib/log4j-core-2.7.jar org/apache/logging/log4j/core/lookup/JndiLookup.class
4. Log on to the primary host as the cluster administrator and start dlpd service
> source installation_top/profile.platform
> egosh user logon -u Admin -x Admin_password
> egosh service start dlpd
Get Notified about Future Security Bulletins
References
CVEID: CVE-2021-44228
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the failure to protect against attacker controlled LDAP and other JNDI related endpoints by JNDI features. By sending a specially crafted code string, an attacker could exploit this vulnerability to load arbitrary Java code on the server and take complete control of the system. Note: The vulnerability is also called Log4Shell or LogJam.
CVSS Base score: 10
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/214921 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Change History
16 Dec 2021: 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:
20 December 2021
Initial Publish date:
16 December 2021
UID
ibm16528786