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Security Bulletin: Client certificates can be spoofed in Liberty for Java for IBM Cloud (CVE-2018-1902)

Security Bulletin


Summary

There is a potential spoofing vulnerability in IBM WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2018-1902 
DESCRIPTION: IBM WebSphere Application Server could allow a remote attacker to spoof connection information which could be used to launch further attacks against the system. 
CVSS Base Score: 3.1 
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/152531 for the current score 
CVSS Environmental Score*: Undefined 
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N)

Affected Products and Versions

This vulnerability affects all versions of Liberty for Java in IBM Cloud up to and including v3.29.

Remediation/Fixes

To upgrade to Liberty for Java v3.30-20190325-130 or higher, you must re-stage or re-push your application.  

To find the current version of Liberty for Java in IBM Cloud being used, from the command-line Cloud Foundry client by running the following commands:

cf ssh <appname> -c cat "staging_info.yml"

Look for the following lines:

{"detected_buildpack":"Liberty for Java(TM) (WAR, liberty-18.0.0_3, buildpack-v3.25-20180918-1034, ibmjdk-1.8.0_20180214, env)","start_command":".liberty/initial_startup.rb"} 

To re-stage your application using the command-line Cloud Foundry client, use the following command:

cf restage <appname>

To re-push your application using the command-line Cloud Foundry client, use the following command:

cf push <appname>

Workarounds and Mitigations

None.

Monitor IBM Cloud Status for Future Security Bulletins

Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.

References

Off

Change History

13 May 2019: original document published

*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:
13 May 2019

UID

ibm10884316