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).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Potential for arbitrary code execution in npm package @thi.ng/egf `#gpg`-tagged property values (only if `decrypt: true` option is enabled). PR with patch has been submitted and will has been released as of v0.4.0 By default the EGF parse functions do NOT attempt to decrypt values (since GPG 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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.34% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- \@thi.ng\/egf project/\@thi.ng\/egf
- Source
- security-advisories@github.com
References
- https://github.com/thi-ng/umbrella/blob/develop/packages/egf/CHANGELOG.md#040-2021-03-27Release Notes, Third Party Advisory
- https://github.com/thi-ng/umbrella/commit/88f61656e5f5cfba960013b8133186389efaf243Patch, Third Party Advisory
- https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7Patch, Third Party Advisory
- https://www.npmjs.com/package/%40thi.ng/egf
- https://github.com/thi-ng/umbrella/blob/develop/packages/egf/CHANGELOG.md#040-2021-03-27Release Notes, Third Party Advisory
- https://github.com/thi-ng/umbrella/commit/88f61656e5f5cfba960013b8133186389efaf243Patch, Third Party Advisory
- https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7Patch, Third Party Advisory
- https://www.npmjs.com/package/%40thi.ng/egf
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.