We've just released a new version (4.43) of Corsigs for users of Trustwave Web Application Firewall (WAF) version 7.0. These new rules help protect users' web applications against malicious traffic targeting the vulnerabilities listed below.
ImageMagick Remote Code Execution
There are multiple vulnerabilities in ImageMagick, a package commonly used by web services to process images. One of the vulnerabilities can lead to remote code execution (RCE) if you process user submitted images.
SQL Injection Rule Improvement
An improvement to an SQL Injection Rule was made in order to increase protection level of SQL Injection attacks.
How to Update
No action is required of customers that run version 7.0 of Trustwave Web Application Firewall and subscribe to the online update feature. Their deployments will receive the update automatically.
Note that even if blocking actions are defined for a protected site, simulation mode for these rules is ON by default so that site managers can inspect the impact of new rules before actually blocking relevant traffic. If you would like to activate blocking actions for this rule, you need to update the Actions for this signature in the Policy Manager.