Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Web Servers >> Apache Remote Username Enumeration Vulnerability


Vulnerability Assessment Details

Apache Remote Username Enumeration Vulnerability

Vulnerability Assessment Summary
Checks for the error codes returned by Apache when requesting a non-existant user name

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote Apache server can be used to guess the existence of a given
user name on the remote host.

Description :

When configured with the 'UserDir' option, requests to URLs containing
a tilde followed by a username will redirect the user to a given
subdirectory in the user home.

For instance, by default, requesting /~root/ displays the HTML
contents from /root/public_html/.

If the username requested does not exist, then Apache will reply with
a different error code. Therefore, a possible hacker may exploit this
vulnerability to guess the existence of a given user name on the remote
host.

Solution :

In httpd.conf, set the 'UserDir' to 'disabled'.

Network Security Threat Level:

Low / CVSS Base Score : 2
(AV:R/AC:L/Au:NR/C:P/A:N/I:N/B:N)

Networks Security ID: 3335

Vulnerability Assessment Copyright: This script is Copyright (C) 2005-2006 Tenable Network Security

Cables, Connectors

Refurb Lenovo ThinkStation P510 30B5002EUS Workstation - 1 x Xeon E5-1630 v4 - 1
$1167.18
Refurb Lenovo ThinkStation P510 30B5002EUS Workstation - 1 x Xeon E5-1630 v4 - 1 pictureNOB HPE ProLiant BL460c G8 Blade Server - 2 x Xeon E5-2640 - 48 GB RAM HDD SSD -
$1014.49
NOB HPE ProLiant BL460c G8 Blade Server - 2 x Xeon E5-2640 - 48 GB RAM HDD SSD - pictureGenuine Intel Xeon X5472 Quad-Core CPU 3.00GHz Processor – Tested
$25.0
Genuine Intel Xeon X5472 Quad-Core CPU 3.00GHz Processor – Tested pictureLot of (2) - INTEL XEON Quad-Core Processors - Tested
$30.0
Lot of (2) - INTEL XEON Quad-Core Processors - Tested picture


Discussions

No Discussions have been posted on this vulnerability.