#VU66955 Prototype pollution in ini - CVE-2020-7788

Vulnerability identifier: #VU66955

Vulnerability 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

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ini
Web applications / JS libraries

Vendor: Node.js Foundation

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

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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

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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.