CVE-2020-10881 Memory corruption in Archer A7
Remote attackers can execute arbitrary code as root on TP-Link Archer A7 routers via a stack-based buffer overflow in DNS response handling without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-10881?
CVE-2020-10881 is a critical memory corruption vulnerability in TP-Link Archer A7, published on 25 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This vulnerability allows remote attackers to 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 handling of DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the root user. Was ZDI-CAN-9660.
Which versions are affected by CVE-2020-10881?
It affects 1 product.
Products include Tp-Link Ac1750 Firmware.
How do I fix CVE-2020-10881?
No fix has been published for CVE-2020-10881 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-10881 being exploited?
There is no known exploitation of CVE-2020-10881 in the wild and no public exploit code.
Other vulnerabilities in TP-Link Archer A7
Sources
Also known as GHSA-8w5p-3q5j-2w9h.