CVE-2022-30521

The LAN-side Web-Configuration Interface has Stack-based Buffer Overflow vulnerability in the D-Link Wi-Fi router firmware DIR-890L DIR890LA1_FW107b09.bin and…

published May 27, 2022

CVSS
—
EPSS
15%
Percentile
96.7
In the wild
Unconfirmed
What it is

⚠️ A stack-based buffer overflow in D-Link's DIR-890L router firmware means attackers could run their code with just a crafted request! 🔥 Think of it like a restaurant where the chef accepts any order without checking the recipe — a single misleading ingredient could lead to a disastrous dish! If exploited, an attacker could gain complete control over the router, allowing them to intercept traffic, manipulate settings, or even launch attacks on devices connected to the network. That's a security nightmare waiting to happen!

Put simply

Think of it like a restaurant where the chef accepts any order without checking the recipe — a single misleading ingredient could lead to a disastrous dish! This vulnerability arises because the function at 0x17958 in the firmware calls `sprintf` without proper length validation on HTTP header parameters, making it easy for attackers to inject malicious payloads.

What to do

If exploited, an attacker could gain complete control over the router, allowing them to intercept traffic, manipulate settings, or even launch attacks on devices connected to the network. That's a security nightmare waiting to happen! Update the router firmware to the latest version to patch this vulnerability. Ensure to monitor your network for any unauthorized access attempts and consider disabling unnecessary services on your router. Regularly check for firmware updates to stay secure! You've got this! Taking these steps will help you lock down your router and protect your network. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.15122 · 96.7th percentile
Published
2022-05-27T00:00Z
EPSS history
Timeline
  • 27 MAY 00:00Z
    The LAN-side Web-Configuration Interface has Stack-based Buffer Overflow vulnerability in the D-Link Wi-Fi router firmware DIR-890L DIR890LA1_FW107b09.bin and…
    cvelistv5