CVE-2022-44843

TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the port parameter in the setting/setOpenVpnClientCfg…

Critical · published November 25, 2022

CVSS v3.1
9.8
EPSS
2%
Percentile
80.2
In the wild
Unconfirmed
What it is

🚨 A command injection vulnerability in TOTOlink A7100RU could let attackers remotely control your router with just a simple tweak to a parameter! 🔥 Think of it like a hotel manager who accidentally gives a guest the master key, allowing them to access any room without authorization. In this case, the router's settings become the guest lounge where mischief can ensue! An attacker could exploit this vulnerability to run arbitrary commands on the router, potentially compromising the entire network. Imagine unauthorized users infiltrating your home network, intercepting traffic, and accessing sensitive information — absolutely devastating!

Put simply

Think of it like a hotel manager who accidentally gives a guest the master key, allowing them to access any room without authorization. In this case, the router's settings become the guest lounge where mischief can ensue! This command injection vulnerability exists in the `setOpenVpnClientCfg` function, where an unvalidated `port` parameter allows attackers to execute malicious commands on the router.

What to do

An attacker could exploit this vulnerability to run arbitrary commands on the router, potentially compromising the entire network. Imagine unauthorized users infiltrating your home network, intercepting traffic, and accessing sensitive information — absolutely devastating! To remediate, update the TOTOlink A7100RU firmware to the latest version that addresses this vulnerability. Ensure you also review your network configurations and monitor for suspicious activity. Don’t forget to change default credentials if you haven't already! You’ve got this! By updating your firmware and tightening your security, you’ll have this router locked down in no time. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01966 · 80.2th percentile
Published
2022-11-25T00:00Z
EPSS history
Timeline
  • 25 NOV 00:00Z
    TOTOlink A7100RU V7.4cu.2313_B20191024 was discovered to contain a command injection vulnerability via the port parameter in the setting/setOpenVpnClientCfg…
    cvelistv5