Security Bulletin: Multiple security vulnerabilities affect Liberty for Java for IBM Bluemix (CVE-2017-1583, CVE-2011-4343)

Summary

There is a potential infomation disclosure vulnerability that affects the Java Server Faces (JSF) component used by WebSphere Application Server. There is a potential infomation disclosure vulnerability that affects the MyFaces component used by JSF in WebSphere Application Server.

Vulnerability Details

CVEID: CVE-2017-1583**
DESCRIPTION:** IBM WebSphere Application Server could allow a remote attacker to obtain sensitive information caused by improper error handling by MyFaces in JSF.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/132342 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID: CVE-2011-4343**
DESCRIPTION:** Apache MyFaces could allow a remote attacker to obtain sensitive information. An attacker could exploit this vulnerability using specially crafted parameters to inject EL expressions into input fields mapped as view parameters and obtain sensitive information.
CVSS Base Score: 5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/132287 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

Affected Products and Versions

This vulnerability affects all versions of Liberty for Java in IBM Bluemix up to and including v3.13.

Remediation/Fixes

To upgrade to Liberty for Java v3.14-20171013-1023 or higher, you must re-stage or re-push your application.

To find the current version of Liberty for Java in IBM Bluemix 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™ (WAR, liberty-17.0.0_3, buildpack-v3.14-20171013-1023, ibmjdk-1.8.0_20170727, 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

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

xx October 2017: 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.

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