Vulnerability identifier: #VU28969

Vulnerability risk: High

CVSSv3.1: 9.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2020-7673

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
node-extend
Web applications / Modules and components for CMS

Vendor: brighthas

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when the argument "A" of "extend" function (A,B,as,isAargs) located within "lib/extend.js" is executed by the "eval" function. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

node-extend: 0.0.1 - 0.2.0

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External links
http://snyk.io/vuln/SNYK-JS-NODEEXTEND-571491

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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. However, proof of concept for this vulnerability is available.