National Vulnerability Database (NVD) National Vulnerability Database (CVE-2001-1013)

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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

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NVD contains:

CVE Vulnerabilities: 56428
Checklists: 221
US-CERT Alerts: 246
US-CERT Vuln Notes: 2721
OVAL Queries: 8140
CPE Names: 73311

Last updated: Fri May 24 09:24:30 EDT 2013

CVE Publication rate: 12.07

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Vulnerability Workload Index: 6.35

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NVD is a product of the NIST Computer Security Division and is sponsored by the Department of Homeland Security's National Cyber Security Division. It supports the U.S. government multi-agency (OSD, DHS, NSA, DISA, and NIST) Information Security Automation Program. It is the U.S. government content repository for the Security Content Automation Protocol (SCAP).

NIST Security Configuration Checklists - CSD

National Cyber Awareness System

Vulnerability Summary for CVE-2001-1013

Original release date:09/12/2001

Last revised:09/05/2008

Source: US-CERT/NIST

Overview

Apache on Red Hat Linux with with the UserDir directive enabled generates different error codes when a username exists and there is no public_html directory and when the username does not exist, which could allow remote attackers to determine valid usernames on the server.

Impact

CVSS Severity (version 2.0 incomplete approximation):

CVSS v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:P/I:N/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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External Source: BID

Name: 3335

Type: Advisory; Patch Information; Exploit

Hyperlink:http://www.securityfocus.com/bid/3335

External Source: XF

Name: linux-apache-username-exists(7129)

Type: Advisory

Hyperlink:http://xforce.iss.net/static/7129.php

External Source: BUGTRAQ

Name: 20010912 Is there user Anna at your host ?

Type: Advisory

Hyperlink:http://www.securityfocus.com/archive/1/213667