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Security Bulletin: BEAST security vulnerability in IBM Tivoli Netcool Performance Manager for Wireline( CVE-2011-3389)

Security Bulletin


Summary

Browser Exploit Against SSL/TLS (a.k.a. BEAST) vulnerability is observed. In TLS 1.0 and earlier, it is possible to predict the Initialization Vector (IV) of the block cipher encryption. This allows a man-in-the-middle attacker to guess the plaintext being encrypted. The affected products are in TLS 1.0 and earlier.

Vulnerability Details

Third Party Entry:   PSIRT-ADV0016851
DESCRIPTION:  
CVSS Base score: 4.7
CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected Products and Versions

Affected Product(s)Version(s)
TNPM Wireline1.4.0
TNPM Wireline1.4.1
TNPM Wireline1.4.2
TNPM Wireline1.4.3
TNPM Wireline1.4.4
TNPM Wireline1.4.5

Remediation/Fixes

This issue can be addressed by disabling TLS below version TLSv1.2 and just keep TLSv1.2

  1. Modify this file:

…/IBM/WebSphere/AppServer/products/sklm/config/SKLMConfig.properties

Look for property
TransportListener.ssl.protocols = SSL_TLS
Update the property to have value TLSv1.2, as shown below:
TransportListener.ssl.protocols=TLSv1.2

This will only enable TLS version 1.2.
Save the file

 

  1. Log in to WAS Admin Console.

Security > 'SSL certificate and key management > SSL configurations > NodeDefaultSSLSettings > Quality of protection (QoP) settings'.
WAS GUI - Security > SSL certificate and key management, and under Related Items, click SSL configurations.
Select each SSL Configuration described below, like NodeDefaultSSLSettings - Quality of protection (QoP) settings under Additional Properties – Protocol – select desired protocol: TLSv1.2 - Apply and Save.

 

  1. Modify this file:

.../IBM/WebSphere/AppServer/profiles/KLMProfile/properties/ssl.client.props
Look for property
'com.ibm.ssl.protocol'

Update the property to have value TLSv1.2, as shown below:
com.ibm.ssl.protocol=TLSv1.2

Save the file

 

  1. Restart WebSphere Server.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

21 Aug 2020: 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

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSBNJ7","label":"IBM Netcool Performance Manager"},"Component":"","Platform":[{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF002","label":"AIX"}],"Version":"1.4.0-1.4.5","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
25 August 2020

Initial Publish date:
21 August 2020

UID

ibm16322533

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