Security Bulletin
Summary
SSLv3 contains a vulnerability that has been referred to as the Padding Oracle On Downgraded Legacy Encryption (POODLE) attack. SSLv3 is enabled in Worklight Quality Assurance (WQA)
Vulnerability Details
Subscribe to My Notifications to be notified of important product support alerts like this.
|
CVE-ID: CVE-2014-3566
Description: Product 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
Worklight Quality Assurance: 6.0.0 – 6.0.0.1
Remediation/Fixes
None
Workarounds and Mitigations
Disable SSLv3 in NGINX
SSLv3 is enabled by default, and is potentially used by HTTP and Mail services in NGINX.
Procedure:
- Locate any use of the directive ssl_protocols in your configuration that specifies the use of SSLv3, for example:
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
- Remove these directives, or change them to this:
ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # don’t use SSLv3 ref: POODLE
- Change the default protocol support.
Locate the http { } block in your nginx.conf configuration file and add the following line to the top of the block:
ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # don’t use SSLv3 ref: POODLE
- Locate the mail { } block in your nginx.conf configuration file (if you have one) and add the same line to the top of the block.
- Restart nginx using the command line:
# nginx –s reload
Get Notified about Future Security Bulletins
References
Acknowledgement
None
Change History
* 27 November 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.
Was this topic helpful?
Document Information
Modified date:
17 June 2018
UID
swg21691111