CVE-2021-43711

The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters

published January 4, 2022

CVSS
—
EPSS
38%
Percentile
98.5
In the wild
Unconfirmed
What it is

⚠️ An unauthenticated command injection in TOTOLINK EX200 can turn a simple GET request into a backdoor! This vulnerability lets attackers execute commands just by manipulating a parameter. 😱 Think of it like a restaurant where anyone can walk in and change the menu items without the chef noticing. Just one clever modification to a specific dish, and suddenly, you’ve got a whole new meal being served! This vulnerability holds the potential for some seriously damaging consequences—an attacker could take control of the device, manipulate its settings, and possibly disrupt your network. Imagine a dinner party where someone swaps out the main course for something disastrous!

Put simply

Think of it like a restaurant where anyone can walk in and change the menu items without the chef noticing. Just one clever modification to a specific dish, and suddenly, you’ve got a whole new meal being served! The command injection vulnerability in the downloadFlile.cgi binary allows attackers to execute arbitrary commands on the server by manipulating the GET parameters, and it does so without requiring any authentication.

What to do

This vulnerability holds the potential for some seriously damaging consequences—an attacker could take control of the device, manipulate its settings, and possibly disrupt your network. Imagine a dinner party where someone swaps out the main course for something disastrous! To protect yourself, upgrade to a patched version as soon as it's available to close this gap. Regularly audit your devices for any similar vulnerabilities and ensure that your network equipment is secure. Also, consider implementing stricter access controls to your network devices. You've got this! Stay vigilant and keep your network secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.37835 · 98.5th percentile
Published
2022-01-04T13:49Z
EPSS history
Timeline
  • 04 JAN 13:49Z
    The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters
    cvelistv5