CVE-2022-22965 Spring4Shell

In summary, from the National Vulnerability Database:

A Spring MVC or Spring WebFlux application running on JDK 9+ may be vulnerable to remote code execution (RCE) via data binding. The specific exploit requires the application to run on Tomcat as a WAR deployment. If the application is deployed as a Spring Boot executable jar, i.e. the default, it is not vulnerable to the exploit. However, the nature of the vulnerability is more general, and there may be other ways to exploit it.

With more context from Spring's early announcement:

I would like to announce an RCE vulnerability in the Spring Framework that was leaked out ahead of CVE publication. The issue was first reported to VMware late on Tuesday evening, close to Midnight, GMT time by codeplutos, meizjm3i of AntGroup FG. On Wednesday we worked through investigation, analysis, identifying a fix, testing, while aiming for emergency releases on Thursday. In the mean time, also on Wednesday, details were leaked in full detail online, which is why we are providing this update ahead of the releases and the CVE report.

The vulnerability impacts Spring MVC and Spring WebFlux applications running on JDK 9+. The specific exploit requires the application to run on Tomcat as a WAR deployment. If the application is deployed as a Spring Boot executable jar, i.e. the default, it is not vulnerable to the exploit. However, the nature of the vulnerability is more general, and there may be other ways to exploit it.

No, this vulnerability does not impact Cascade Cloud or on-premise distributions of Cascade CMS. While Cascade CMS makes use of the Spring Framework for Dependency Injection and Inversion of Control, it does not include the affected spring-mvc package.