CVE-2021-21881CWE-78

An OS command injection vulnerability exists in the Web Manager Wireless Network Scanner functionality of Lantronix PremierWave 2050 8.9.0.0R4

Critical · published December 22, 2021

CVSS v3.0
9.9
EPSS
37%
Percentile
98.5
In the wild
Unconfirmed
What it is

🚨 An authenticated HTTP request is all it takes to trigger command execution! This OS command injection flaw in Lantronix PremierWave 2050 could turn your network scanner into a hacker's playground. 🔥 Think of it like a restaurant kitchen where the head chef trusts the waitstaff so much that they take any order without checking it — a rogue server could serve up anything, including dangerous dishes directly to the customers. If exploited, an attacker could execute arbitrary commands on the device, compromising network security and potentially gaining full control. This could lead to unauthorized access to sensitive data, network disruption, or worse—a total system takeover!

Put simply

Think of it like a restaurant kitchen where the head chef trusts the waitstaff so much that they take any order without checking it — a rogue server could serve up anything, including dangerous dishes directly to the customers. The vulnerability arises from the Web Manager Wireless Network Scanner feature, where a specially-crafted HTTP request allows command injection after an authenticated user gains access.

What to do

If exploited, an attacker could execute arbitrary commands on the device, compromising network security and potentially gaining full control. This could lead to unauthorized access to sensitive data, network disruption, or worse—a total system takeover! To safeguard your systems, immediately update to the latest version of the Lantronix PremierWave 2050 (8.9.0.1 or higher). Review access controls and limit user permissions to minimize exposure. Regularly audit your network for any unauthorized access attempts. You've got this! Follow these steps to lock down your device and maintain security hero status! 🛡️

The record
Technical detail
CVSS v3.0
9.9 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.36935 · 98.5th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2021-12-22T18:06Z
EPSS history
Timeline
  • 22 DEC 18:06Z
    An OS command injection vulnerability exists in the Web Manager Wireless Network Scanner functionality of Lantronix PremierWave 2050 8.9.0.0R4
    cvelistv5