Medium · published January 15, 2019
⚠️ A sneaky configuration hiccup means your stateless firewall filters might not be doing their job! On EX2300 and EX3400 series, combining 'policer' actions could leave your network vulnerable. 🔍 Think of your firewall filters like a team of bouncers at a club. If one bouncer (the 'policer') isn't checking IDs properly, some questionable guests could slip through unnoticed! If left unaddressed, this issue could lead to unfiltered traffic in your network, potentially exposing sensitive data. It’s not a complete breach, but it certainly opens the door to unwanted guests lurking around your server!
Think of your firewall filters like a team of bouncers at a club. If one bouncer (the 'policer') isn't checking IDs properly, some questionable guests could slip through unnoticed! This vulnerability involves a misconfiguration where the action 'policer' in stateless firewall filter settings fails to show in the hardware summary. This affects the effectiveness of filtering for both IPv4 and IPv6 traffic.
If left unaddressed, this issue could lead to unfiltered traffic in your network, potentially exposing sensitive data. It’s not a complete breach, but it certainly opens the door to unwanted guests lurking around your server! To mitigate this, upgrade your Junos OS to version 15.1X53-D590 or later, or to 18.1R3/18.2R2 depending on your current version. Regularly check configurations to ensure all firewall actions are being processed correctly! You've got this! With a quick upgrade, you'll keep your network secure and functioning smoothly. 🛡️