Security Bulletin
Summary
There is a vulnerability in Apache Log4j2 used by IBM Spectrum LSF Explorer and IBM Spectrum LSF Application Center. IBM Spectrum LSF Explorer and IBM Spectrum LSF Application Center have addressed the applicable CVE. Customers are encouraged to take action by executing the mitigation steps.
Vulnerability Details
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)
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-2021-4104
DESCRIPTION: Apache Log4j could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data when the attacker has write access to the Log4j configuration. If the deployed application is configured to use JMSAppender, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215048 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Spectrum LSF Application Center | 10.2 |
| IBM Spectrum LSF Explorer | 10.2 |
Remediation/Fixes
Patch will be released once available.
Workarounds and Mitigations
IBM strongly recommends addressing the vulnerability now by executing these steps:
|
Product |
VRMF |
APAR |
Remediation/First Fix |
|
Spectrum LSF Application Center |
10.2 |
None |
Remove the JndiLookup.class from log4j-core-*.jar file
1). find $PMC_TOP -name "log4j-core-*.jar" -exec zip -q -d {} org/apache/logging/log4j/core/lookup/JndiLookup.class \;
2). reboot services
perfadmin stop all;perfadmin start all
pmcadmin stop;pmcadmin start
|
|
Spectrum LSF Explorer |
10.2 |
None |
Remove the JndiLookup.class from log4j-core-*.jar file
1). find $PMC_TOP/../../ -name "log4j-core-*.jar" -exec zip -q -d {} org/apache/logging/log4j/core/lookup/JndiLookup.class \;
2). reboot services
perfadmin stop all;perfadmin start all
pmcadmin stop;pmcadmin start
systemctl restart elasticsearch-for-lsf
|
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
13 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:
22 December 2021
Initial Publish date:
13 December 2021
UID
ibm16527746