CVE-2021-20702

Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X…

published November 2, 2021

CVSS
—
EPSS
2%
Percentile
82.4
In the wild
Unconfirmed
What it is

⚡ A remote code execution vulnerability lurks in CLUSTERPRO X 4.3, and it’s just a network call away! Think of it like an unsecured delivery service—if the courier doesn’t check the package contents, they might deliver something dangerous right to your doorstep! An attacker could potentially gain complete control over the affected system, executing any commands they like. This could lead to unauthorized access to sensitive information, data manipulation, or even a total system compromise.

Put simply

Think of it like an unsecured delivery service—if the courier doesn’t check the package contents, they might deliver something dangerous right to your doorstep! The vulnerability stems from a buffer overflow in the Transaction Server, allowing attackers to send specially crafted data over the network, leading to remote code execution without requiring authentication.

What to do

An attacker could potentially gain complete control over the affected system, executing any commands they like. This could lead to unauthorized access to sensitive information, data manipulation, or even a total system compromise. To mitigate this risk, ensure you patch to version 4.3.1 or later. Additionally, review your network security settings to restrict access to only trusted sources. It’s crucial to monitor for any unusual activity that could indicate exploitation attempts. This is totally fixable! Follow these steps, and you’ll be back in action, securing your systems like the security hero you are! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.02202 · 82.4th percentile
Published
2021-11-02T23:30Z
EPSS history
Timeline
  • 02 NOV 23:30Z
    Buffer overflow vulnerability in the Transaction Server CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X…
    cvelistv5