CVE-2019-19824 Command injection in n/a

High 8.8 Published Updated

Authenticated attackers can execute arbitrary OS commands on TOTOLINK routers via the sysCmd parameter, gaining full device control.

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-2019-19824?

CVE-2019-19824 is a high-severity command injection vulnerability in n/a, published on 27 Jan 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

On certain TOTOLINK Realtek SDK based routers, an authenticated attacker may execute arbitrary OS commands via the sysCmd parameter to the boafrm/formSysCmd URI, even if the GUI (syscmd.htm) is not available. This allows for full control over the device's internals. This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, N100RE through 3.4.0, and N302RE 2.0.2.

Weakness: CWE-78

Which versions are affected by CVE-2019-19824?

It affects 8 products.

Products include Totolink A3002ru Firmware, Totolink A702r Firmware, Totolink N100re Firmware, Totolink N150rt Firmware, Totolink N200re Firmware, Totolink N300rt Firmware and 2 more.

How do I fix CVE-2019-19824?

No fix has been published for CVE-2019-19824 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-2019-19824 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-19824 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-mrf4-89gh-pm62.

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