CVE-2022-22963

In Spring Cloud Function versions 3.1.6, 3.2.2 and older unsupported versions, when using routing functionality it is possible for a user to provide a specially crafted SpEL as a routing-expression that may result in remote code execution and access to local resources.

Weakness

The product constructs all or part of an expression language (EL) statement in a framework such as a Java Server Page (JSP) using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended EL statement before it is executed.

Affected Software

Potential Mitigations

• If user-controlled data must be added to an expression interpreter, one or more of the following should be performed:

References

• http://packetstormsecurity.com/files/173430/Spring-Cloud-3.2.2-Remote-Command-Execution.html
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0005
• https://tanzu.vmware.com/security/cve-2022-22963
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-java-spring-scf-rce-DQrHhJxH
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujul2022.html