|Applies To||RSA Product Set:Silver Tail, Web Threat Detection|
RSA Version/Condition: All versions prior to 5.0.1
|Article Summary||On October 14, 2014, a vulnerability was publicly announced in the Secure Sockets Layer version 3 (SSLv3) protocol when using a block cipher in Cipher Block Chaining (CBC) mode. SSLv3 is a cryptographic protocol designed to provide communication security.|
|Link to Advisories||http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-3566|
|Alert Impact||Impacted - Apply RSA Remedy|
|Technical Details||Provide details on patch, upgrade, downgrade, workaround, hot fix|
|Technical Details Explanation||Follow steps below to disable SSLv3 support in nginx on each node in Web Threat Detection:|
1. Open /var/opt/silvertail/etc/nginx-scoutproxy.conf and /var/opt/silvertail/etc/nginx-siteproxy.conf
2. Search for the following text in the file:
# Restrict ssl_protocols
ssl_protocols SSLv3 TLSv1;
3. Remove the SSLv3 from the ssl_protocols line. There could be multiple occurrences of the ssl_protocols line, make the below change to each occurrence. It should now look like this:
4. Save the files and restart each nginx instance. Not all hosts will be running SiteProxy. All hosts will be running ScoutProxy.
sudo /etc/init.d/st-ScoutProxy-<hostname> restart
sudo /etc/init.d/st-SiteProxy-0 restart
Read and use the information in this RSA Security Advisory to assist in avoiding any situation that might arise from the problems described herein. If you have any questions regarding this product alert, contact RSA Software Technical Support at 1- 800 995 5095. RSA Corporation distributes RSA Security Advisories, in order to bring to the attention of users of the affected RSA products, important security information. RSA recommends that all users determine the applicability of this information to their individual situations and take appropriate action. The information set forth herein is provided 'as is' without warranty of any kind. RSA disclaims all warranties, either express or implied, including the warranties of merchantability, fitness for a particular purpose, title and non-infringement. In no event, shall RSA or its suppliers, be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if RSA or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages, so the foregoing limitation may not apply.