CVE-2024-7158 TOTOLINK A3100R HTTP POST Request cstecgi.cgi setTelnetCfg command injection

Medium 5.3 Published 28 Jul 2024 Updated 1 Aug 2024

Remote attackers can execute arbitrary commands on TOTOLINK A3100R routers via the setTelnetCfg function in cstecgi.cgi.

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-2024-7158?

CVE-2024-7158 is a medium-severity command injection vulnerability in TOTOLINK A3100R, published on 28 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been declared as critical. This vulnerability affects the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument telnet_enabled leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-272572. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-77

Which versions are affected by CVE-2024-7158?

It affects 1 product.

Products include Totolink A3100r Firmware.

How do I fix CVE-2024-7158?

No fix has been published for CVE-2024-7158 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-2024-7158 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-7158 exists.

Sources

Also known as GHSA-rpw9-g7f5-hqpv.