#VU83528 Permissions, Privileges, and Access Controls in NMS300 - CVE-2023-49694

Vulnerability identifier: #VU83528

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2023-49694

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

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

Vendor: NETGEAR

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NMS300: before 1.7.0.31

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External links
https://kb.netgear.com/000065885/Security-Advisory-for-Vertical-Privilege-Escalation-on-the-NMS300-PSV-2023-0127
https://www.tenable.com/security/research/tra-2023-39

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.