CVE-2023-43742

An authentication bypass in Zultys MX-SE, MX-SE II, MX-E, MX-Virtual, MX250, and MX30 with firmware versions prior to 17.0.10 patch 17161 and 16.04 patch 16109…

published December 8, 2023

CVSS
—
EPSS
1%
Percentile
60.1
In the wild
Unconfirmed
What it is

⚠️ A crafty loophole in Zultys MX systems lets attackers bypass authentication just by ignoring failure messages! 🤯 Think of this like a hotel receptionist who doesn’t kick out someone trying to sneak into the building after being told they don’t have a reservation. If the guest persists and ignores the warning, they get a free pass to roam around! An unauthenticated attacker could waltz into the system and act as if they were an admin, potentially gaining access to sensitive configurations and data. This could lead to unauthorized changes, data leaks, or even complete system control — which is absolutely devastating!

Put simply

Think of this like a hotel receptionist who doesn’t kick out someone trying to sneak into the building after being told they don’t have a reservation. If the guest persists and ignores the warning, they get a free pass to roam around! This vulnerability occurs when the server fails to terminate a connection after an authentication failure, allowing the client to continue making requests as if they were authenticated.

What to do

An unauthenticated attacker could waltz into the system and act as if they were an admin, potentially gaining access to sensitive configurations and data. This could lead to unauthorized changes, data leaks, or even complete system control — which is absolutely devastating! Immediate action is needed: upgrade to firmware version 17.0.10 patch 17161 or 16.04 patch 16109 to close this gap. Also, consider reviewing your system access logs for any unusual activity! This is fixable! Get that firmware updated and you'll be a security hero in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00924 · 60.1th percentile
Published
2023-12-08T00:00Z
EPSS history
Timeline
  • 08 DEC 00:00Z
    An authentication bypass in Zultys MX-SE, MX-SE II, MX-E, MX-Virtual, MX250, and MX30 with firmware versions prior to 17.0.10 patch 17161 and 16.04 patch 16109…
    cvelistv5