CVE-2020-10884 Hardcoded credentials in Archer A7

High 8.1 Published Updated

Network-adjacent attackers can execute arbitrary code as root on TP-Link Archer A7 routers by exploiting a hard-coded encryption key in the tdpServer service.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-10884?

CVE-2020-10884 is a high-severity vulnerability in TP-Link Archer A7, published on 25 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows network-adjacent attackers execute arbitrary code on affected installations of TP-Link Archer A7 Firmware Ver: 190726 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the tdpServer service, which listens on UDP port 20002 by default. This issue results from the use of hard-coded encryption key. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-9652.

Weakness: CWE-798, CWE-321

Which versions are affected by CVE-2020-10884?

It affects 1 product.

Products include Tp-Link Ac1750 Firmware.

How do I fix CVE-2020-10884?

No fix has been published for CVE-2020-10884 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-10884 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-10884 exists.

Public exploit code: 1 Metasploit module and 1 Exploit-DB entry.

Sources

Also known as GHSA-2gp5-7cf4-978c.

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