CVE-2021-42232 Command injection in n/a

Critical 9.8 Published Updated

An attacker can execute arbitrary commands on TP-Link Archer A7 routers via a command injection flaw in the tddp binary.

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-2021-42232?

CVE-2021-42232 is a critical command injection vulnerability in n/a, published on 23 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TP-Link Archer A7 Archer A7(US)_V5_210519 is affected by a command injection vulnerability in /usr/bin/tddp. The vulnerability is caused by the program taking part of the received data packet as part of the command. This will cause an attacker to execute arbitrary commands on the router.

Weakness: CWE-78

Which versions are affected by CVE-2021-42232?

It affects 1 product.

Products include Tp-Link Archer A7 Firmware.

How do I fix CVE-2021-42232?

No fix has been published for CVE-2021-42232 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-2021-42232 being exploited?

There is no known exploitation of CVE-2021-42232 in the wild and no public exploit code.

Sources

Also known as GHSA-7jqw-x96f-m5vv.

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