#VU63763 Stack-based buffer overflow in AC18


Published: 2022-05-27

Vulnerability identifier: #VU63763

Vulnerability risk: High

CVSSv3.1: 9.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2022-30476

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
AC18
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Shenzhen Tenda Technology Co.,Ltd.

Description

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

The vulnerability exists due to a boundary error in the httpd module when handling /goform/SetFirewallCfg request. A remote unauthenticated attacker 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
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

AC18: 15.03.05.19(6318)


External links
http://github.com/lcyfrank/VulnRepo/tree/master/IoT/Tenda/6


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. However, proof of concept for this vulnerability is available.


Latest bulletins with this vulnerability