Critical · published May 2, 2019
CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 99.9th percentile for exploit probability.
🚨 A simple URL can lead to total chaos! An unauthenticated user can exploit this command injection vulnerability in ZyXEL routers, threatening your network security. 🔥 Think of this as a delivery service that doesn’t verify the recipient – anyone can send whatever they want, leading to unwanted packages stacking up in your lobby. With this vulnerability, an attacker can easily inject harmful commands right into your router’s system log. 📦 Imagine an attacker gaining unfettered access to your router's system logs and executing any command they desire! This could lead to a complete takeover of your network, allowing them to intercept data or manipulate your devices. The consequences could be absolutely devastating!
Think of this as a delivery service that doesn’t verify the recipient – anyone can send whatever they want, leading to unwanted packages stacking up in your lobby. With this vulnerability, an attacker can easily inject harmful commands right into your router’s system log. 📦 The vulnerability lies within the ViewLog.asp page of the ZyXEL P660HN-T1A router. It allows an attacker to use the remote_host parameter to inject malicious commands because the system does not properly validate input before executing it.
Imagine an attacker gaining unfettered access to your router's system logs and executing any command they desire! This could lead to a complete takeover of your network, allowing them to intercept data or manipulate your devices. The consequences could be absolutely devastating! To safeguard your network, immediately patch your router to the latest firmware version and disable the Remote System Log forwarding function if possible. Monitor for unusual activity and consider changing default credentials to strengthen access control. 🛡️ You've got this! By taking these steps, you can secure your network and send those cyber villains packing! 🎉