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Security Bulletin: IBM LMS On Premise - IBM SDK, Java Technology Edition Apr 2018 and Jul 2018 (CVE-2018-2783, CVE-2018-1517 , CVE-2018-2952)

Security Bulletin


Summary

We have identified one or more security vulnerabilities that affect IBM Kenexa LMS for our on Premise customers. The Fix for these vulnerabilities is included in LMS version 6.1 only.

IBM recommends updating to the latest release and following the instructions below to apply the needed fix.

Vulnerability Details

Relevant CVE Information:

CVEID: CVE-2018-2783
DESCRIPTION: An unspecified vulnerability in Oracle Java SE related to the Java SE, Java SE Embedded, JRockit Security component could allow an unauthenticated attacker to cause high confidentiality impact, high integrity impact, and no availability impact.
CVSS Base Score: 7.4
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/141939 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)

CVEID: CVE-2018-1517
DESCRIPTION: A flaw in the java.math component in IBM SDK, Java Technology Edition may allow an attacker to inflict a denial-of-service attack with specially crafted String data.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/141681 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2018-2952
DESCRIPTION: An unspecified vulnerability in Oracle Java SE related to the Java SE, Java SE Embedded, JRockit Concurrency component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base Score: 3.7
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/146815 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

LMS 5.0,5.1,5.2,6.0,6.1

Remediation/Fixes

The fix for this issue will be available only for IBM LMS 6.1.

IBM recommends updating to the latest release if you are in a previous version of the product. To do so you need to download the new version via IBM Passport Advantage. 

Once on version 6.1 , please proceed to download and apply the provided fix  via Fix Central .

Steps to Download from Fix Central

  • Log in to Fix Central (https://www-945.ibm.com/support/fixcentral/)
  • Select " IBM Kenexa LMS"  from the Product Selector dropdown
  • Select "6.1" from the Installed version dropdown
  • Select "Windows" from the Platform dropdown
  • Click "Continue"
  • Select "Browse for Fixes"  and click "Continue"

Download the following 3 files :

  • Participate_jdk64 
  • LMS_ibmsdk64 
  • LMS_ibmsdk32 

Steps to Follow in Version 6.1 ONLY :

1. Stop LMS and Participate Services
2. Perform Backups
    i) In  the LMS installation directory, perform a back up of the existing JDK directories by renaming  the Java directories ibmsdk32 and ibmsdk64.  We suggest  appending "_backup"  to the end.
    ii) In the  Participate installation (root) directory, perform a  back up of the  existing Java directory located in the following path ({Install_Directory}\jdk\windows\jdk64)  by renaming the directory. Suggest  appending "_backup"  to the end.
Important Note :  If the Step 1 (stopping of services ) did not complete , you  might have issues renaming the folders. Please ensure all  Participate and LMS services are no longer running prior to renaming/taking backup
3. Download the Latest JDK files from Fix Central (see above)
4. Once you have the new files,  place the unzipped contents of the new JSK  into the respective LMS and PE directories. Please ensure that the directory names of the new JDK is the  same as the earlier one (prior to backup) for both LMS and PE.
4. Run Install.bat  (via CMD)  on PE and Auto Configuration on the  LMS
5. Start services.

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

*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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Historical Number

Advisory ID : 11819,12959

Product Synonym

LMS;IBM SDK; Java;On Premise;

Document Information

Modified date:
25 July 2019

UID

ibm10959039

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