CVE-2021-21412 MEDIUM

CVE-2021-21412: [thi.ng/egf] Potential arbitrary code execution of `#gpg`-tagged property values

Vendor Thi-Ng
Product egf
Weakness CWE-78
Published March 30, 2021
Last update August 3, 2024

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 30, 2021 CVE published
August 3, 2024 Record updated