Multiple vulnerabilities in Werkzeug

Published: 2023-02-16

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-23934 CVE-2023-25577
CWE-ID	CWE-20 CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Werkzeug Web applications / JS libraries
Vendor	The Pallets Projects

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU72340

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23934

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of "nameless" cookies. A remote attacker can manipulate cookie values for an arbitrary domain.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Werkzeug: 0.1 - 2.2.2

External links

http://github.com/pallets/werkzeug/security/advisories/GHSA-px8h-6qxv-m22q
http://github.com/pallets/werkzeug/commit/cf275f42acad1b5950c50ffe8ef58fe62cdce028
http://github.com/pallets/werkzeug/releases/tag/2.2.3

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.

2) Resource exhaustion

EUVDB-ID: #VU72339

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-25577

CWE-ID: CWE-400 - Resource exhaustion