CVE-2023-3941CWE-23

Multiple arbitrary file writes in ZkTeco-based OEM devices

Critical · published May 21, 2024

CVSS v3.1
10.0
EPSS
1%
Percentile
59.8
In the wild
Unconfirmed
What it is

🔥 A sneaky relative path traversal vulnerability in ZkTeco devices could grant an attacker root access to write any file on the system! Think of it like a delivery driver who can access the entire warehouse just by saying the right words – no one checks their ID. If they name a file, they can write it without anyone batting an eye! An attacker could exploit this flaw to gain complete control over the device, potentially accessing sensitive data, altering configurations, or even deploying malicious software. This could lead to devastating consequences for security and privacy. Imagine the chaos of an unauthorized intruder running rampant in a digital vault!

Put simply

Think of it like a delivery driver who can access the entire warehouse just by saying the right words – no one checks their ID. If they name a file, they can write it without anyone batting an eye! This vulnerability allows an attacker to manipulate relative paths to save files anywhere on the system, bypassing normal restrictions. Devices affected include various ZkTeco OEM devices running specific firmware versions like ZAM170-NF-1.8.25-7354-Ver1.0.0.

What to do

An attacker could exploit this flaw to gain complete control over the device, potentially accessing sensitive data, altering configurations, or even deploying malicious software. This could lead to devastating consequences for security and privacy. Imagine the chaos of an unauthorized intruder running rampant in a digital vault! Immediately update your ZkTeco devices to the latest firmware version to patch this vulnerability. Ensure you also review file permission settings and restrict access to critical system files. Don't wait – this is a critical fix! You've got this! Follow these steps to secure your devices and maintain your status as a 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
0.00917 · 59.8th percentile
Weakness
CWE-23 · Relative Path Traversal
Published
2024-05-21T10:20Z
EPSS history
Timeline
  • 21 MAY 10:20Z
    Multiple arbitrary file writes in ZkTeco-based OEM devices
    cvelistv5