GitHub Advisoryadvisory · npm
GHSA-rj44-gpjc-29r7 [thi.ng/egf] Potential arbitrary code execution of `#gpg`-tagged property values
MEDIUM
Official page ↗
- Aliases
- CVE-2021-21412
- Ecosystem
- npm
- Packages
- @thi.ng/egf
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-78
- Reviewed
- 2021-03-30
Affected packages
• npm @thi.ng/egf: < 0.4.0 → fixed in 0.4.0
Description
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.
Related
Alias · CVE (1)
- CVE-2021-21412 Potential for arbitrary code execution in npm package @thi.ng/egf `#gpg`-tagged property values (only if `decrypt: true` option is enabled). vulnerability
Weakness · CWE (1)
- CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
References
- https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7 web
- https://nvd.nist.gov/vuln/detail/CVE-2021-21412 advisory
- https://github.com/thi-ng/umbrella/commit/88f61656e5f5cfba960013b8133186389efaf243 web
- https://github.com/thi-ng/umbrella/blob/develop/packages/egf/CHANGELOG.md#040-2021-03-27 web
- https://www.npmjs.com/package/@thi.ng/egf web