CVE-2021-42796

An issue was discovered in ExecuteCommand() in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior that allows unauthenticated arbitrary…

Critical · published December 16, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
66.2
In the wild
Unconfirmed
What it is

🔥 A crafty flaw in AVEVA Edge could let anyone run arbitrary commands without even logging in! Think of it like a restaurant where customers can just shout out any dish they want at the chef without any restrictions — and the chef prepares it! This vulnerability means that if someone knows the right command, they can have the whole system cooking up trouble. An attacker could exploit this vulnerability to execute malicious commands, potentially compromising the entire system. This could lead to data breaches, unauthorized access, and even complete system takeovers, which is absolutely devastating for businesses relying on AVEVA Edge for industrial operations.

Put simply

Think of it like a restaurant where customers can just shout out any dish they want at the chef without any restrictions — and the chef prepares it! This vulnerability means that if someone knows the right command, they can have the whole system cooking up trouble. The issue arises in the ExecuteCommand() function of AVEVA Edge, allowing unauthenticated users to send commands directly to the server, bypassing all authentication checks.

What to do

An attacker could exploit this vulnerability to execute malicious commands, potentially compromising the entire system. This could lead to data breaches, unauthorized access, and even complete system takeovers, which is absolutely devastating for businesses relying on AVEVA Edge for industrial operations. Immediate action is necessary: upgrade to the latest version of AVEVA Edge, as this vulnerability affects versions R2020 and prior. Ensure a comprehensive review of your security protocols is conducted to prevent unauthorized access. You've got this! Follow these steps, and you'll have your system secured 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
0.01133 · 66.2th percentile
Published
2023-12-16T00:00Z
EPSS history
Timeline
  • 16 DEC 00:00Z
    An issue was discovered in ExecuteCommand() in AVEVA Edge (formerly InduSoft Web Studio) versions R2020 and prior that allows unauthenticated arbitrary…
    cvelistv5