CVE-2023-43201

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the hi_up parameter in the qos_ext.asp function

published September 20, 2023

CVSS
—
EPSS
1%
Percentile
64.2
In the wild
Unconfirmed
What it is

🚨 A surprising stack overflow lurks in the D-Link DI-7200GV2! A simple misconfiguration could set the stage for chaos. 🔥 Think of it like a crowded elevator with too many passengers—eventually, it just can’t handle the weight and breaks down. Here, the ‘hi_up’ parameter becomes the excess weight that tips the balance. An attacker could potentially exploit this vulnerability to crash the device, causing a denial of service. While it hasn't been actively exploited yet, this weakness could lead to unexpected downtime or even unauthorized access if misconfigured, making it a potential grey cloud on your network's horizon.

Put simply

Think of it like a crowded elevator with too many passengers—eventually, it just can’t handle the weight and breaks down. Here, the ‘hi_up’ parameter becomes the excess weight that tips the balance. This stack overflow occurs when the 'hi_up' parameter in the qos_ext.asp function is improperly handled, allowing attackers to manipulate the call stack and potentially execute arbitrary code if they can trigger the overflow.

What to do

An attacker could potentially exploit this vulnerability to crash the device, causing a denial of service. While it hasn't been actively exploited yet, this weakness could lead to unexpected downtime or even unauthorized access if misconfigured, making it a potential grey cloud on your network's horizon. To protect your D-Link DI-7200GV2, ensure you update to the latest firmware version available. Additionally, review your configuration settings related to the 'hi_up' parameter and implement strict input validation to avoid unexpected input lengths. You've got this! By following these steps, your network will be better protected, and you'll maintain your security hero status! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01056 · 64.2th percentile
Published
2023-09-20T00:00Z
EPSS history
Timeline
  • 20 SEP 00:00Z
    D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the hi_up parameter in the qos_ext.asp function
    cvelistv5