#VU29418 Input validation error in PA6 Wi-Fi Powerline extender - CVE-2019-19506

Vulnerability identifier: #VU29418

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-19506

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PA6 Wi-Fi Powerline extender
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Shenzhen Tenda Technology Co.,Ltd.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the "homeplugd" process. A remote attacker can send a specially crafted UDP packet and perform a denial of service (DoS) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PA6 Wi-Fi Powerline extender: 1.0.1.21

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External links
https://securityintelligence.com/posts/vulnerable-powerline-extenders-underline-lax-iot-security/

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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.