Security Bulletin
Summary
The Apache Log4j library used by IBM Tivoli Netcool Impact is vulnerable to denial of service and arbitrary code execution due to Apache Log4j (CVE-2021-45105, CVE-2021-45046). The library is used by IBM Tivoli Netcool Impact to provide logging functionality. The fix includes Apache Log4j 2.17.1.
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 Tivoli Netcool Impact | 7.1.0 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now.
Note: This fix supersedes the previous fix provided for resolution of CVE-2021-44228 and CVE-2021-45046.
Product Name | VRMF | APAR | Remediation/Fix |
IBM Tivoli Netcool Impact | 7.1.0.18 - 7.1.0.24 | IJ36885 | For 7.1.0.18 through 7.1.0.22: Upgrade to the refreshed Fix Pack 23 or refreshed Fix Pack 24 --OR-- Apply Interim Fix 10 (7.1.0-TIV-NCI-IF0010) For 7.1.0.23: Upgrade to the refreshed Fix Pack 24 --OR-- Apply Interim Fix 10 (7.1.0-TIV-NCI-IF0010) For 7.1.0.24: Apply Interim Fix 10 (7.1.0-TIV-NCI-IF0010) |
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
04 Jan 2022: Initial Publication04 Feb 2022: Updated remediation with refreshed FP23 and FP24
*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:
04 February 2022
UID
ibm16538694