RCE in Thi-Ng Egf
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). 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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.013 (70.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Thi-Ng Egf — versions < 0.4.0
- \@Thi.ng\/egf Project
Weakness classification (CWE)
References
- github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7 (Patch, Third Party Advisory)
- github.com/thi-ng/umbrella/commit/88f61656e5f5cfba960013b8133186389efaf243 (Patch, Third Party Advisory)
- github.com/thi-ng/umbrella/blob/develop/packages/egf/CHANGELOG.md (Third Party Advisory, Release Notes)
- www.npmjs.com/package/@thi.ng/egf
Frequently asked questions
- What is CVE-2021-21412?
- CVE-2021-21412 is a medium-severity vulnerability in Thi-Ng Egf, classified under OS Command Injection. CVSS score: 6.4/10. Published 2021-03-30.
- How severe is CVE-2021-21412?
- Medium severity. CVSS v3 base score is 6.4 out of 10.