X11 Server Unauthenticated Access Open Vulnerability CVE-1999-0526
Issue
- Is my Red Hat Enterprise Linux OS affected with Vulnerability described in
CVE-1999-0526? - The remote X11 server accepts connection from anywhere.
- An attacker may connect to it to eavesdrop on the keyboard and mouse events of a user on the remote host.
- It is even possible for an attacker to grab a screenshot of the remote host or to display arbitrary programs.
- An attacker may exploit this flaw to obtain the username and password of a user on the remote host.
Environment
- Red Hat Enterprise Linux (RHEL) 6
- Red Hat Enterprise Linux (RHEL) 5
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