Multiple vulnerabilities in Tenda PA6 Wi-Fi Powerline extender
| Risk | High |
| Patch available | NO |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2019-19506 CVE-2019-19505 CVE-2019-16213 |
| CWE-ID | CWE-20 CWE-121 CWE-77 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
PA6 Wi-Fi Powerline extender Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Shenzhen Tenda Technology Co.,Ltd. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU29418
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-19506
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsPA6 Wi-Fi Powerline extender: 1.0.1.21
External linkshttp://securityintelligence.com/posts/vulnerable-powerline-extenders-underline-lax-iot-security/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
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.
2) Stack-based buffer overflow
EUVDB-ID: #VU29419
Risk: High
CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-19505
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in "Wireless" section in the web-UI. A remote unauthenticated attacker can send a specially crafted hostname, 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.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsPA6 Wi-Fi Powerline extender: 1.0.1.21
External linkshttp://securityintelligence.com/posts/vulnerable-powerline-extenders-underline-lax-iot-security/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
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.
3) Command Injection
EUVDB-ID: #VU29420
Risk: Medium
CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-16213
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary commands on the system.
The vulnerability exists due to improper input validation. A remote authenticated attacker can send a specially crafted string, modify the device name of an attached PLC adapter and execute arbitrary commands on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsPA6 Wi-Fi Powerline extender: 1.0.1.21
External linkshttp://securityintelligence.com/posts/vulnerable-powerline-extenders-underline-lax-iot-security/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
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.
