Security Bulletin
Summary
SSLv3 contains a vulnerability that has been referred to as the Padding Oracle On Downgraded Legacy Encryption (POODLE) attack. SSL_TLS is enabled by default in Build Forge in some pages.
Vulnerability Details
CVE ID: CVE-2014-3566
Description: IBM WebSphere Application could allow a remote attacker to obtain sensitive information, caused by a design error when using the SSLv3 protocol. A remote user with the ability to conduct a man-in-the-middle attack could exploit this vulnerability via a POODLE (Padding Oracle On Downgraded Legacy Encryption) attack to decrypt SSL sessions and access the plaintext of encrypted connections.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/97013 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Affected Products and Versions
IBM Rational Build Forge versions 7.1.1, 7.1.2, 7.1.3 and 8.0
Workarounds and Mitigations
You can change the configuration file by the following steps to disable the SSLv3.
Note: bfinstall is used below to represent the installation directory you have chosen to place Build Forge.
Procedure:
- Open Build Forge console in browser
- Go to Administration > Security-SSL
- Change all the SSL_TLS/SSLv3/SSL to TLSv1 and save
- Backup the bfclient.conf file
- By default the bfclient.conf is under \bfinstall on Windows
- By default the bfclient.conf is under /bfinstall/<platform> on Linux and UNIX
- Go to Administration > Security
- Click Update Master BFClient.conf
Note: The bfclient.conf is used for Communication between Build Forge Service Layer and UI&Engine. It is also used by Build Forge API when you use the secure connection to Build Forge.
- Stop Build Forge
- Change the Apache ssl.conf config file
- By default the ssl.conf is under \bfinstall\Apache\Conf\ssl\ on Windows
- By default the ssl.conf is under /bfinstall/server/apache/conf/ssl/ on Linux and UNIX
- Update the following line for you version of Build Forge
- For Build Forge 7.1.x:
From: SSLProtocol -ALL +SSLv3 +TLSv1
To: SSLProtocol -ALL +TLSv1
- For Build Forge 8.0.0.x:
From: SSLProtocol -ALL +SSLv3 +TLSv1 +TLSv1.1 +TLSv1.2
To: SSLProtocol -ALL +TLSv1 +TLSv1.1 +TLSv1.2
- Change the Tomcat server.conf config
- By default the server.conf is under \bfinstall\Apache\tomcat\conf\ on Windows
- By default the server.conf is under /bfinstall/server/tomcat/conf/ on Linux and UNIX
- Find the sslProtocol="SSL_TLS" line and change the SSL_TLS to TLS and save
Note: If Build Forge is installed with WebSphere Application Server, this step is not required
- Start Build Forge
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References
Acknowledgement
None
Change History
* 31 October 2014: Original copy 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.
Internal Use Only
PSIRT 43776 for the advisory 2290
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Document Information
Modified date:
16 June 2018
UID
swg21688137