Security Bulletin
Summary
Apache Log4j is used by API Connect as part of its logging and analytics infrastructure. The fix includes Apache Log4j 2.17.1 which addresses CVE-2021-45105, CVE-2021-45046 and CVE-2021-44832.
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)
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
API Connect | V10.0.0.0 - V10.0.4.0 |
API Connect | V10.0.1.0 - V10.0.1.5 |
API Connect | V2018.4.1.0 - 2018.4.1.17 |
API Connect | V5.0.0.0 - 5.0.8.12 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by upgrading.
Affected Product | Addressed in VRMF | Remediation / Fix |
IBM API Connect
V10.0.1.0 - V10.0.4.0
| V10.0.4.0-ifix1 |
Addressed in IBM API Connect V10.0.4.0-ifix1 The Analytics component is impacted. Follow this link and find the appropriate package.
|
IBM API Connect
V10.0.1.1 - V10.0.1.5
| V10.0.1.5-ifix4 |
Addressed in IBM API Connect V10.0.1.5-ifix4 The analytics component is impacted. Follow this link and find the appropriate package.
|
IBM API Connect
V2018.4.1.0 - 2018.4.1.17
| V2018.4.1.17-ifix2 |
Addressed in IBM API Connect V2018.4.1.17-ifix2 he Analytics component is impacted. Follow this link and find the appropriate package.
|
IBM API Connect
V5.0.0.0 - V5.0.8.12
| V5.0.8.13 |
Addressed in IBM API Connect V5.0.8.13 The Analytics and Management components are impacted. Follow this link and find the appropriate package.
|
Workarounds and Mitigations
None
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References
Acknowledgement
Change History
15 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:
18 January 2022
UID
ibm16541728