High · published March 6, 2017
CVSS calls it high at 8.8. It is confirmed in active exploitation. It sits in the 99.4th percentile for exploit probability.
🚨 Remote authenticity can be a double-edged sword! On NETGEAR DGN2200 devices, authenticated users can exploit a vulnerability in dnslookup.cgi to execute arbitrary OS commands. 🔥 Think of a restaurant where the chef trusts all the waitstaff with the recipe book. If one of them starts changing the recipes behind the scenes, the whole menu goes haywire. That's exactly what happens when attackers use shell metacharacters in the host_name field—trust goes awry! An attacker could gain full control over the device's operating system, allowing them to execute any command they want. This could lead to devastating consequences, like unauthorized data access or even turning the affected router into a launchpad for further attacks!
Think of a restaurant where the chef trusts all the waitstaff with the recipe book. If one of them starts changing the recipes behind the scenes, the whole menu goes haywire. That's exactly what happens when attackers use shell metacharacters in the host_name field—trust goes awry! This vulnerability exists because the dnslookup.cgi script fails to properly validate input, allowing attackers to inject shell metacharacters through the host_name field of an HTTP POST request. As a result, they can execute arbitrary OS commands.
An attacker could gain full control over the device's operating system, allowing them to execute any command they want. This could lead to devastating consequences, like unauthorized data access or even turning the affected router into a launchpad for further attacks! Patch your NETGEAR DGN2200 device to firmware version 10.0.0.51 or later immediately to close this vulnerability. Additionally, ensure that authenticated users have the minimum necessary permissions to mitigate potential risks. Regularly check for firmware updates to stay ahead of threats! You've got this! With these steps, you can secure your device and take your security hero status to the next level! 🛡️