#VU46068 Code Injection in grunt - CVE-2020-7729

Vulnerability identifier: #VU46068

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-7729

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
grunt
Web applications / Modules and components for CMS

Vendor: gruntjs

Description

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

The vulnerability exists due to the default usage of the function "load()" instead of its secure replacement "safeLoad()". A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

grunt: 0.1.0 - 1.2.1

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External links
https://snyk.io/vuln/SNYK-JS-GRUNT-597546
https://github.com/gruntjs/grunt/commit/e350cea1724eb3476464561a380fb6a64e61e4e7
https://github.com/gruntjs/grunt/blob/master/lib/grunt/file.js#L249

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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