7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
0.097 Low
EPSS
Percentile
94.2%
We have identified that the IBM Kenexa LCMS Premier is affected by one or more security vulnerabilities. These have been tested in LCMS Premier 13.x & 14.0 versions.
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 Product(s) | Version(s) |
---|---|
IBM Kenexa LCMS Premier on premise | LCMS 14.0 and below |
LCMS uses Log4j 1.x version and fix for this issue has been tested on IBM LCMS 13.x & 14.0 versions
Steps to Download from Fix Central
Download log4jLcmsfix.zip and Extract the following 2 files:
Steps to Follow:
Steps for deploying log4j fix:
1. Copy libreplace.exe and log4j-core-2.15.0.jar into a new directory, e.g. c:\log4jfix
2. Start a command-prompt as administrator
3. Change to new directory, e.g. cd /d c:\log4jfix
4. Stop all LCMS services
5. Execute command-line:
libreplace.exe “d:\lcms” log4j*.jar log4j-core-2.15.0.jar . CONFIRM
(“d:\lcms” represents your LCMS directory)
6. Notice log messages that look like “log4j(etc).jar is now identical to log4j-core-2.15.0.jar”; this confirms that changes have been made properly
7. Start LCMS services
OPTIONAL - to rollback changes(if needed):
1. Stop all LCMS services
2. Find the .log file in e.g. c:\log4jfix
3. Find every line that starts with “UNDO:”
4. Execute the OS command from command-line, which follows “UNDO:”
5. Start LCMS services
None
CPE | Name | Operator | Version |
---|---|---|---|
ibm kenexa lcms premier | eq | 14.0 |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:P/I:P/A:P
0.097 Low
EPSS
Percentile
94.2%