#VU78366 Improper Authentication in NMS300 - CVE-2023-38096

Vulnerability identifier: #VU78366

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-38096

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NMS300
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: NETGEAR

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the MyHandlerInterceptor class. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NMS300: before 1.7.0.20

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External links
https://www.zerodayinitiative.com/advisories/ZDI-23-920/
https://kb.netgear.com/000065707/Security-Advisory-for-Multiple-Vulnerabilities-on-the-ProSAFE-Network-Management-System-PSV-2023-0024-PSV-2023-0025

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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.