CVE-2020-14500CWE-158

IMPROPER NEUTRALIZATION OF NULL BYTE OR NUL CHARACTER CWE-158

Critical · published August 25, 2020

CVSS v3.1
10.0
EPSS
2%
Percentile
76.6
In the wild
Unconfirmed
What it is

🚨 A negative value is the secret weapon here! This CVE allows attackers to overwrite arbitrary data on Secomea GateManager versions earlier than 9.2c — like a mischievous prankster slipping a wrong order into the kitchen! 🔥 Think of it like a restaurant where a waiter mistakenly inputs a negative number for a dish — it messes up the entire order system! In this case, the attacker sends a sneaky negative value that can overwrite important data, potentially causing chaos in operations. An attacker could exploit this vulnerability to overwrite critical data, which could lead to severe disruptions in service or unauthorized access to sensitive configurations. The consequences are absolutely devastating, potentially allowing attackers to control systems and compromise security measures.

Put simply

Think of it like a restaurant where a waiter mistakenly inputs a negative number for a dish — it messes up the entire order system! In this case, the attacker sends a sneaky negative value that can overwrite important data, potentially causing chaos in operations. This vulnerability arises from a flaw in input validation, where the system fails to properly handle negative values, leading to arbitrary data overwrites. This means that malicious actors can manipulate the intended behavior of the GateManager by sending crafted negative inputs.

What to do

An attacker could exploit this vulnerability to overwrite critical data, which could lead to severe disruptions in service or unauthorized access to sensitive configurations. The consequences are absolutely devastating, potentially allowing attackers to control systems and compromise security measures. Patch to version 9.2c or later immediately. Review your configurations to ensure that negative inputs are properly validated. Regularly audit and monitor your systems for any irregularities. 🛡️ You've got this! With these steps, you’ll secure your systems and keep the internet safe. Go, security hero! 🌟

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01666 · 76.6th percentile
Weakness
CWE-158 · Improper Neutralization of Null Byte or NUL Character
Published
2020-08-25T13:12Z
EPSS history
Timeline
  • 25 AUG 13:12Z
    IMPROPER NEUTRALIZATION OF NULL BYTE OR NUL CHARACTER CWE-158
    cvelistv5