Denial of service in path-parse JavaScript library



Published: 2021-07-26 | Updated: 2021-08-10
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-23343
CWE ID CWE-185
Exploitation vector Network
Public exploit N/A
Vulnerable software
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path-parse
Web applications / JS libraries

Vendor Javier Blanco Gutiérrez

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Incorrect Regular Expression

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-23343

CWE-ID: CWE-185 - Incorrect Regular Expression

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation in splitDeviceRe, splitTailRe, and splitPathRe regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation

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

Vulnerable software versions

path-parse: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6

CPE External links

https://github.com/jbgutierrez/path-parse/issues/8
https://snyk.io/vuln/SNYK-JS-PATHPARSE-1077067
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1279028
https://lists.apache.org/thread.html/r6a32cb3eda3b19096ad48ef1e7aa8f26e005f2f63765abb69ce08b85@%3Cdev.myfaces.apache.org%3E
https://github.com/advisories/GHSA-hj48-42vr-x3v9
https://www.npmjs.com/advisories/1773

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.



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