CVE-1999-0526

An X server's access control is disabled (e.g

published September 29, 1999

CVSS
—
EPSS
21%
Percentile
97.5
In the wild
Unconfirmed
What it is

⚠️ Anyone could just stroll up to your X server! The access control is wide open thanks to an 'xhost +' command—like leaving the front door wide open on a chilly night! Picture your home with no locks on the doors and a sign that says, 'Come on in!' That's what happens when an X server's access control is disabled—inviting in anyone from the cold outside without checking their ID! This means unauthorized users could connect to your server and potentially manipulate the environment or access sensitive data. A malicious actor could cause chaos, executing commands or intercepting activities without a second glance!

Put simply

Picture your home with no locks on the doors and a sign that says, 'Come on in!' That's what happens when an X server's access control is disabled—inviting in anyone from the cold outside without checking their ID! CVE-1999-0526 arises when an X server's access control is disabled, allowing any client to connect without authentication. This security lapse can lead to unauthorized access and manipulation of X server sessions.

What to do

This means unauthorized users could connect to your server and potentially manipulate the environment or access sensitive data. A malicious actor could cause chaos, executing commands or intercepting activities without a second glance! To secure your X server, avoid using the 'xhost +' command and instead restrict access using 'xhost' with specific authorized hosts. Regularly review access controls and monitor connections to ensure only trusted clients are allowed. You've got this! Follow these steps to lock down your X server and keep the intruders at bay! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.20817 · 97.5th percentile
Published
1999-09-29T04:00Z
EPSS history
Timeline
  • 29 SEP 04:00Z
    An X server's access control is disabled (e.g
    cvelistv5