Prototype Pollution in querymen middleware for MongoDB, Express and Nodejs



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-7600
CWE-ID CWE-400
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 querymen
Web applications / Modules and components for CMS

Vendor diegohaz

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Prototype Pollution

EUVDB-ID: #VU26232

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-7600

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper input validation in parameters of exported function "handler(type, name, fn)". A remote attacker can modificate the object properties.

Mitigation

Install update from vendor's website.

Vulnerable software versions

querymen: 0.1.1 - 2.1.3

CPE2.3 External links

https://github.com/diegohaz/querymen/commit/1987fefcb3b7508253a29502a008d5063a873cef
https://snyk.io/vuln/SNYK-JS-QUERYMEN-559867


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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