Input validation error in Werkzeug



| Updated: 2024-09-20
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14322
CWE-ID CWE-20
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Werkzeug
Web applications / JS libraries

Vendor The Pallets Projects

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU19553

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-2019-14322

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to access arbitrary files on the target system.

The vulnerability exists due to the "SharedDataMiddleware" mishandles drive names (such as C:) in Windows pathnames. A remote attacker can access arbitrary files on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Werkzeug: 0.1 - 0.15.4

CPE2.3 External links

https://palletsprojects.com/blog/werkzeug-0-15-5-released/


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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