Express update for qs



| Updated: 2022-12-04
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-24999
CWE-ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Express
Web applications / JS libraries

Vendor Express.js

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Prototype pollution

EUVDB-ID: #VU69675

Risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2022-24999

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation. A remote attacker can send a specially crafted request and perform a denial of service (DoS) attack.


Mitigation

Install update from vendor's website.

Vulnerable software versions

Express: 4.0.0 - 4.17.2

CPE2.3 External links

https://github.com/n8tz/CVE-2022-24999
https://github.com/expressjs/express/releases/tag/4.17.3
https://github.com/ljharb/qs/pull/428


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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