On March 29, 2022, a critical vulnerability targeting the Spring Java framework was disclosed. This vulnerability was initially confused with a vulnerability in Spring Cloud, CVE-2022-22963. However, it was later identified as a separate vulnerability inside Spring Core, now tracked as CVE-2022-22965 and canonically named Spring4Shell.
Our security researchers, engineers, and our Crowdsource community are actively working on understanding the vulnerabilities and developing tests. We have received a dozen POCs already and anticipate more over the coming days. While the situation is rapidly developing, here is what we know so far. The Spring Cloud Function vulnerability (CVE-2022-22963) was disclosed and patched earlier this week.
On Wednesday 30th March 2022, news was disclosed online about an unauthenticated RCE zero-day vulnerability in Spring Core, a framework for building modern Java-based enterprise applications.
“Never click unexpected links!” Ever hear someone yell this? Virtually every person in tech has a healthy suspicion of random links; it is for a good reason. Every now and then there are huge leaks from industry leaders as a result of a targeted campaign. One of the most reliable ways to “phish” someone, or exfiltrate their credentials, is to abuse an open redirect vulnerability in a safe-looking website and redirect the victims to a malicious one.
On Thursday, March 31st a patch for a widely used Java framework called the Spring Framework was given the designation CVE-2022-22965 with a CVSS Score of 9.8. That’s bad news for a lot of companies that make use of this framework for delivery of their web applications, services and APIs. This is a remote code execution (RCE) vulnerability and the ease of exploitation is partly why it has earned a 9.8 out of 10 on the CVSS Score.
On March 29, 2022, details of a zero-day vulnerability in Spring Framework (CVE-2022-22965) were leaked. For many, this is reminiscent of the zero-day vulnerability in Log4j (CVE-2021-44228) back in December 2021.
A critical remote code execution (RCE) vulnerability was identified March 30th, 2022 for the Spring Framework. Spring core, used by millions of systems to develop Java web applications quickly, is one of the Java world’s most popular open source Java frameworks. The RCE vulnerability, if successfully exploited could potentially allow an attacker to take control of a vulnerable system.
On March 29th, the cyberkendra security blog posted a sensational post about a Log4Shell-equivalent zero-day vulnerability in Spring Framework, but without any solid details about the vulnerability itself.
On March 30, 2022, a critical remote code execution (RCE) vulnerability was found in the Spring Framework. More specifically, it is part of the spring-beans package, a transitive dependency in both spring-webmvc and spring-webflux. This vulnerability is another example of why securing the software supply chain is important to open source.
