Prototype pollution in INI for Node.js

1) Prototype pollution

EUVDB-ID: #VU66955

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7788

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code.

The vulnerability exists due to improper input validation when handling INI files. A remote attacker can pass a specially crafted INI file to the application and perform prototype pollution attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ini: 1.0.0 - 1.3.5

CPE2.3

• cpe:2.3:a:node_js_foundation:ini:1.0.0:*:*:*:*:nodejs:*:*
• cpe:2.3:a:node_js_foundation:ini:1.0.1:*:*:*:*:nodejs:*:*
• cpe:2.3:a:node_js_foundation:ini:1.0.2:*:*:*:*:nodejs:*:*

External links

https://snyk.io/vuln/SNYK-JS-INI-1048974
https://github.com/npm/ini/commit/56d2805e07ccd94e2ba0984ac9240ff02d44b6f1
https://github.com/advisories/GHSA-qqgx-2p2h-9c37

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.