CVE-2020-35576 Command injection in n/a

High 8.8 Published 25 Jan 2021 Updated 4 Aug 2024

Authenticated attackers can execute arbitrary code as root on TP-Link routers via shell metacharacters in the traceroute feature.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-35576?

CVE-2020-35576 is a high-severity command injection vulnerability in n/a, published on 25 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A Command Injection issue in the traceroute feature on TP-Link TL-WR841N V13 (JP) with firmware versions prior to 201216 allows authenticated users to execute arbitrary code as root via shell metacharacters, a different vulnerability than CVE-2018-12577.

Weakness: CWE-78

Which versions are affected by CVE-2020-35576?

It affects 1 product.

Products include Tp-Link Tl-Wr841n Firmware.

How do I fix CVE-2020-35576?

No fix has been published for CVE-2020-35576 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2020-35576 being exploited?

There is no known exploitation of CVE-2020-35576 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-3g69-576q-4hxf.