Security Bulletin
Summary
There are vulnerabilities in the Apache Log4j open source library. The library is used by IBM CloudPak foundational services which is a dependency of IBM WebSphere Automation for IBM Cloud Pak for Watson AIOps. The fix includes upgrade to Apache Log4j v2.17.
Vulnerability Details
CVEID: CVE-2021-45105
DESCRIPTION: Apache Log4j is vulnerable to a denial of service, caused by the failure to protect from uncontrolled recursion from self-referential lookups. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input data that contains a recursive lookup to cause a StackOverflowError that will terminate the process.
Note: The vulnerability is also called LOG4J2-3230.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215647 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-45046
DESCRIPTION: Apache Log4j could result in remote code execution, caused by an incomplete fix of CVE-2021-44228 in certain non-default configurations. When the logging configuration uses a non-default Pattern Layout with a Context Lookup, an attacker with control over Thread Context Map (MDC) input data can craft malicious input data using a JNDI Lookup pattern to leak sensitive information and remote code execution in some environments and local code execution in all environments.
CVSS Base score: 9
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:C/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM WebSphere Automation for IBM Cloud Pak for Watson AIOps | 1.2 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now. The recommended solution involves a component of IBM WebSphere Automation for IBM Cloud Pak for Watson AIOps. The name of the component is IBM CloudPak foundational services (Events Operator). It is recommended to follow the instructions below.
Refer to the following documentation to perform an online installation:
- Installing IBM Cloud Pak foundational services online by using the console
- Installing IBM Cloud Pak foundational services online by using the CLI
If the Approval Strategy is set to Manual in the subscription, IBM Cloud Pak foundational services operator cannot be automatically installed or upgraded. For more information, see Approval strategy. Update to the latest version.
Refer to the following documentation to perform an air-gapped installation:
export CASE_VERSION=1.2.1
Workarounds and Mitigations
None
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References
Change History
12 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
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Document Information
Modified date:
13 January 2022
Initial Publish date:
12 January 2022
UID
ibm16540584