GHSA-WJX8-CGRM-HH8P

Vulnerability from github – Published: 2019-12-17 22:53 – Updated: 2024-04-22 18:41
VLAI
Summary
Unrestricted file uploads in Contao
Details

Impact

A back end user with access to the form generator can upload arbitrary files and execute them on the server.

Patches

Update to Contao 4.4.46 or 4.8.6.

Workarounds

Configure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.

References

https://contao.org/en/security-advisories/unrestricted-file-uploads

For more information

If you have any questions or comments about this advisory, open an issue in contao/contao.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/core-bundle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.4.46"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/core-bundle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.5.0"
            },
            {
              "fixed": "4.8.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/contao"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.4.46"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "contao/contao"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.5.0"
            },
            {
              "fixed": "4.8.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-19745"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2019-12-17T19:42:31Z",
    "nvd_published_at": "2019-12-17T15:15:25Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nA back end user with access to the form generator can upload arbitrary files and execute them on the server.\n\n### Patches\n\nUpdate to Contao 4.4.46 or 4.8.6.\n\n### Workarounds\n\nConfigure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.\n\n### References\n\nhttps://contao.org/en/security-advisories/unrestricted-file-uploads\n\n### For more information\n\nIf you have any questions or comments about this advisory, open an issue in [contao/contao](https://github.com/contao/contao/issues/new/choose).\n",
  "id": "GHSA-wjx8-cgrm-hh8p",
  "modified": "2024-04-22T18:41:39Z",
  "published": "2019-12-17T22:53:10Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/contao/contao/security/advisories/GHSA-wjx8-cgrm-hh8p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-19745"
    },
    {
      "type": "WEB",
      "url": "https://contao.org/en/news.html"
    },
    {
      "type": "WEB",
      "url": "https://contao.org/en/security-advisories/unrestricted-file-uploads.html"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2019-19745.yaml"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2019-19745.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/contao/contao"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unrestricted file uploads in Contao"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.