Prototype Pollution in lutils package for npm



Published: 2021-06-24
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2021-23396
CWE-ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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lutils
Web applications / Modules and components for CMS

Vendor nfour

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Prototype Pollution

EUVDB-ID: #VU54348

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C]

CVE-ID: CVE-2021-23396

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 on the target system.

The vulnerability exists due to improper input validation in the main (merge) function. A remote 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

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

Vulnerable software versions

lutils: 2.0.0 - 2.4.0

External links

http://snyk.io/vuln/SNYK-JS-LUTILS-1311023


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.



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