Security Bulletin: Watson Knowledge Catalog InstaScan is vulnerable to denial of service and arbitrary code execution due to Apache Log4j (CVE-2021-45105, CVE-2021-45046)

Security Bulletin

Summary

Watson Knowledge Catalog InstaScan uses Apache Log4j as part of its logging infrastructure. Hence it is vulnerable to denial of service (CVE-2021-45105) and arbitrary code execution (CVE-2021-45046). 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)
Watson Knowledge Catalog InstaScan (StoredIQ)	1.1.1 to 1.1.7

Remediation/Fixes

IBM strongly recommends addressing the vulnerability now.

Affected Product(s)	Affected Version(s)	Remediation/Fix and Instructions
Watson Knowledge Catalog InstaScan (StoredIQ)	1.1.1 to 1.1.7	Upgrade to Watson Knowledge Catalog InstaScan version 1.1.8 1. run the following command on the infrastructure node of the OpenShift cluster: ./cpd-cli upgrade --repo <your-repo.yaml> -a wkc-instascan -n <your-name-space> --verbose --accept-all-licenses Replace <your-repo.yaml> with the name of the repository yaml file and <your-name-space> with the actual OpenShift project name (Kubernetes namespace) in which the product is installed.

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

Change History

21 Mar 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":"BU004","label":"Hybrid Cloud"},"Product":{"code":"SSCLA7","label":"Knowledge Catalog"},"Component":"Watson Knowledge Catalog InstaScan","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"1.1.6","Edition":""}]

Tips

Security Bulletin: Watson Knowledge Catalog InstaScan is vulnerable to denial of service and arbitrary code execution due to Apache Log4j (CVE-2021-45105, CVE-2021-45046)