GHSA-RJ44-GPJC-29R7

Vulnerability from github – Published: 2021-04-06 17:22 – Updated: 2021-03-30 20:20
VLAI
Summary
[thi.ng/egf] Potential arbitrary code execution of `#gpg`-tagged property values
Details

Impact

Potential for arbitrary code execution in #gpg-tagged property values (only if decrypt: true option is enabled)

Patches

A fix has already been released as v0.4.0

Workarounds

By default, EGF parse functions do NOT attempt to decrypt values (since GPG is only available in non-browser env).

However, if GPG encrypted values are used/required:

  1. Perform a regex search for #gpg-tagged values in the EGF source file/string and check for backtick (`) chars in the encrypted value string
  2. Replace/remove them or skip parsing if present...

References

https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7#advisory-comment-65261

For more information

If you have any questions or comments about this advisory, please open an issue in the thi.ng/umbrella repo, of which this package is part of.

Severity
6.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@thi.ng/egf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21412"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-03-30T17:40:22Z",
    "nvd_published_at": "2021-03-30T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nPotential for arbitrary code execution in `#gpg`-tagged property values (only if `decrypt: true` option is enabled)\n\n### Patches\n\n[A fix](https://github.com/thi-ng/umbrella/commit/3e14765d6bfd8006742c9e7860bc7d58ae94dfa5) has already been released as v0.4.0\n\n### Workarounds\n\nBy default, EGF parse functions do NOT attempt to decrypt values (since GPG is only available in non-browser env).\n\nHowever, if GPG encrypted values are used/required:\n\n1. Perform a regex search for `#gpg`-tagged values in the EGF source file/string and check for backtick (\\`) chars in the encrypted value string\n2. Replace/remove them or skip parsing if present...\n\n### References\n\nhttps://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7#advisory-comment-65261\n\n### For more information\n\nIf you have any questions or comments about this advisory, please open an issue in the [thi.ng/umbrella repo](https://github.com/thi-ng/umbrella/issues), of which this package is part of.",
  "id": "GHSA-rj44-gpjc-29r7",
  "modified": "2021-03-30T20:20:04Z",
  "published": "2021-04-06T17:22:41Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21412"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thi-ng/umbrella/commit/88f61656e5f5cfba960013b8133186389efaf243"
    },
    {
      "type": "WEB",
      "url": "https://github.com/thi-ng/umbrella/blob/develop/packages/egf/CHANGELOG.md#040-2021-03-27"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/@thi.ng/egf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "[thi.ng/egf] Potential arbitrary code execution of `#gpg`-tagged property values"
}



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