ghsa-c84h-w6cr-5v8q
Vulnerability from github
Published
2020-10-27 17:59
Modified
2024-09-30 20:15
Severity ?
9.3 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
Summary
Markdown-supplied Shell Command Execution
Details

Impact

lookatme versions prior to 2.3.0 automatically loaded the built-in "terminal" and "file_loader" extensions. Users that use lookatme to render untrusted markdown may have malicious shell commands automatically run on their system.

Patches

Users should upgrade to lookatme versions 2.3.0 or above.

Workarounds

The lookatme/contrib/terminal.py and lookatme/contrib/file_loader.py files may be manually deleted. Additionally, it is always recommended to be aware of what is being rendered with lookatme.

References

  • https://github.com/d0c-s4vage/lookatme/pull/110
  • https://github.com/d0c-s4vage/lookatme/releases/tag/v2.3.0

For more information

If you have any questions or comments about this advisory:

Show details on source website

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "lookatme"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-15271"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-10-26T18:07:46Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "### Impact\n\nlookatme versions prior to 2.3.0 automatically loaded the built-in \"terminal\" and \"file_loader\" extensions. Users that use lookatme to render untrusted markdown may have malicious shell commands automatically run on their system.\n\n### Patches\n\nUsers should upgrade to lookatme versions 2.3.0 or above.\n\n### Workarounds\n\nThe `lookatme/contrib/terminal.py` and `lookatme/contrib/file_loader.py` files may be manually deleted. Additionally, it is always recommended to be aware of what is being rendered with lookatme.\n\n### References\n\n* https://github.com/d0c-s4vage/lookatme/pull/110\n* https://github.com/d0c-s4vage/lookatme/releases/tag/v2.3.0\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [d0c-s4vage/lookatme](https://github.com/d0c-s4vage/lookatme)",
  "id": "GHSA-c84h-w6cr-5v8q",
  "modified": "2024-09-30T20:15:51Z",
  "published": "2020-10-27T17:59:54Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/d0c-s4vage/lookatme/security/advisories/GHSA-c84h-w6cr-5v8q"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15271"
    },
    {
      "type": "WEB",
      "url": "https://github.com/d0c-s4vage/lookatme/pull/110"
    },
    {
      "type": "WEB",
      "url": "https://github.com/d0c-s4vage/lookatme/commit/72fe36b784b234548d49dae60b840c37f0eb8d84"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/d0c-s4vage/lookatme"
    },
    {
      "type": "WEB",
      "url": "https://github.com/d0c-s4vage/lookatme/releases/tag/v2.3.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/lookatme/PYSEC-2020-61.yaml"
    },
    {
      "type": "WEB",
      "url": "https://pypi.org/project/lookatme/#history"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Markdown-supplied Shell Command Execution"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.