CVE-2022-46642

D-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the auto_upgrade_hour parameter in the SetAutoUpgradeInfo function

Critical · published December 23, 2022

CVSS v3.1
9.9
EPSS
3%
Percentile
87.7
In the wild
Unconfirmed
What it is

🚨 A single misconfigured setting could unleash chaos! The D-Link DIR-846's command injection vulnerability lets attackers execute any command they want via a sneaky parameter—like giving the keys of your home to a stranger. 🔥 Think of it like leaving a window cracked open with a note inside saying, 'Feel free to come in!'. An attacker could simply sneak in through that opening and take control without raising any alarms. This vulnerability could lead to a complete takeover of your router, allowing an attacker to intercept your internet traffic, manipulate settings, or even launch attacks on your local network. The risks are absolutely devastating, as they could compromise personal data or expose you to further cyber threats.

Put simply

Think of it like leaving a window cracked open with a note inside saying, 'Feel free to come in!'. An attacker could simply sneak in through that opening and take control without raising any alarms. The issue resides in the SetAutoUpgradeInfo function, where the auto_upgrade_hour parameter is not properly validated. This allows an attacker to inject arbitrary commands into the system, effectively bypassing normal security measures.

What to do

This vulnerability could lead to a complete takeover of your router, allowing an attacker to intercept your internet traffic, manipulate settings, or even launch attacks on your local network. The risks are absolutely devastating, as they could compromise personal data or expose you to further cyber threats. To safeguard your network, immediately upgrade to the fixed firmware version and disable any automatic updates. Regularly check D-Link's site for updates to ensure your device is secure. Don't forget to review your router settings to eliminate any unnecessary exposure! You've got this! Follow these steps, and you’ll keep your network locked down tight. 🛡️

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.03113 · 87.7th percentile
Published
2022-12-23T00:00Z
EPSS history
Timeline
  • 23 DEC 00:00Z
    D-Link DIR-846 A1_FW100A43 was discovered to contain a command injection vulnerability via the auto_upgrade_hour parameter in the SetAutoUpgradeInfo function
    cvelistv5