CVE-2021-25668CWE-122

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All…

published April 22, 2021

CVSS
—
EPSS
2%
Percentile
75.2
In the wild
Unconfirmed
What it is

⚠️ A sneaky flaw in SCALANCE devices could let an attacker turn a simple POST request into a chaos machine! 🔥 Think of these devices like a restaurant kitchen where a chef receives an order but forgets to check if it follows the recipe—one wrong dish can lead to a kitchen disaster, affecting all the diners! If exploited, attackers could cause a denial-of-service, leaving your devices unresponsive to essential commands and potentially paving the way for remote code execution. This could mean a complete halt in operations, which is absolutely devastating for any industrial setting.

Put simply

Think of these devices like a restaurant kitchen where a chef receives an order but forgets to check if it follows the recipe—one wrong dish can lead to a kitchen disaster, affecting all the diners! This vulnerability arises from improper handling of POST requests, leading to out-of-bounds writes in the heap. An attacker can exploit this to disrupt service or execute arbitrary code.

What to do

If exploited, attackers could cause a denial-of-service, leaving your devices unresponsive to essential commands and potentially paving the way for remote code execution. This could mean a complete halt in operations, which is absolutely devastating for any industrial setting. It's crucial to upgrade all affected SCALANCE devices to version 5.5.1 or higher right away! If you can't upgrade immediately, consider isolating these devices from critical networks until they are secured. Regularly check for updates to maintain a strong defense. You've got this! With these steps, you'll reinforce your defenses and keep your systems running smoothly. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01569 · 75.2th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2021-04-22T20:42Z
EPSS history
Timeline
  • 22 APR 20:42Z
    A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All…
    cvelistv5