#VU82966 Stack-based buffer overflow in CAX30 - CVE-2023-44445

Vulnerability identifier: #VU82966

Vulnerability 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

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
CAX30
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: NETGEAR

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

---

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).

Is there known malware, which exploits this vulnerability?

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