CVE-2021-21412 Information

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 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.npmjs.com/package/@thi.ng/egf https://github.com/thi-ng/umbrella/security/advisories/GHSA-rj44-gpjc-29r7 https://github.com/thi-ng/umbrella/commit/88f61656e5f5cfba960013b8133186389efaf243 https://github.com/thi-ng/umbrella/blob/develop/packages/egf/CHANGELOG.md#040-2021-03-27

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8