CVE-2021-45986

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetUSBShareInfo

published February 4, 2022

CVSS
—
EPSS
2%
Percentile
79.2
In the wild
Unconfirmed
What it is

⚠️ A single USB parameter holds the key to a command injection vulnerability in Tenda routers G1 and G3 — it’s like leaving your front door slightly ajar for anyone to stroll in! 🔓 Imagine your home is equipped with a guestbook that records everyone who enters. If the guestbook can be tampered with, unscrupulous visitors can write in whatever they want, gaining access to your private spaces. This command injection is just like that — a simple tweak in the USB settings could let attackers execute commands without any checks! While the severity here is listed as unknown, the potential for abuse is concerning. An attacker could exploit this vulnerability to run arbitrary commands, which means they could meddle with your router settings, intercept traffic, or even pick up sensitive information. Yikes!

Put simply

Imagine your home is equipped with a guestbook that records everyone who enters. If the guestbook can be tampered with, unscrupulous visitors can write in whatever they want, gaining access to your private spaces. This command injection is just like that — a simple tweak in the USB settings could let attackers execute commands without any checks! This command injection vulnerability in Tenda routers G1 and G3 occurs in the formSetUSBShareInfo function, allowing attackers to manipulate the usbOrdinaryUserName parameter to execute unauthorized commands on the system.

What to do

While the severity here is listed as unknown, the potential for abuse is concerning. An attacker could exploit this vulnerability to run arbitrary commands, which means they could meddle with your router settings, intercept traffic, or even pick up sensitive information. Yikes! To safeguard your network, ensure you update your Tenda routers to the latest firmware version as soon as it becomes available. Additionally, regularly check and secure your router settings, especially those related to USB sharing. Don't forget to review available documentation for further configurations! You’ve got this! Take action, and soon your network will be as secure as a fortress! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01869 · 79.2th percentile
Published
2022-02-04T01:33Z
EPSS history
Timeline
  • 04 FEB 01:33Z
    Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetUSBShareInfo
    cvelistv5