#VU26407 Input validation error in Archer A7


Published: 2020-03-26

Vulnerability identifier: #VU26407

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10885

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Archer A7
Hardware solutions / Routers for home users

Vendor: TP-Link

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when handling the DNS responses. A remote attacker can pass a specially crafted input to the application and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Archer A7: 190726


External links
http://www.zerodayinitiative.com/advisories/ZDI-20-337/


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.


Latest bulletins with this vulnerability