Remote code execution in NETGEAR CAX30

1) Stack-based buffer overflow

EUVDB-ID: #VU82966

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-44445

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the sso binary. A remote unauthenticated attacker on the local network can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CAX30: before 2.2.1.12

CPE2.3

• cpe:2.3:h:netgear:cax30:*:*:*:*:*:*:*:*

External links

https://kb.netgear.com/000065859/Security-Advisory-for-Pre-authentication-Buffer-Overflow-on-the-CAX30-PSV-2023-0093
https://www.zerodayinitiative.com/advisories/ZDI-23-1636/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.