Test ID:	1.3.6.1.4.1.25623.1.0.801991
Category:	Windows
Title:	Microsoft Windows SMB/NETBIOS NULL Session Authentication Bypass Vulnerability
Summary:	Microsoft Windows is prone to an authentication bypass; vulnerability via SMB/NETBIOS.
Description:	Summary: Microsoft Windows is prone to an authentication bypass vulnerability via SMB/NETBIOS. Vulnerability Insight: The flaw is due to an SMB share, allows full access to Guest users. If the Guest account is enabled, anyone can access the computer without a valid user account or password. Vulnerability Impact: Successful exploitation could allow attackers to use shares to cause the system to crash. Affected Software/OS: - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows NT - Microsoft Windows 2000 - Microsoft Windows in other implementations / versions might be affected as well Solution: A workaround is to: - Disable null session login - Remove the share - Enable passwords on the share CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-1999-0519 https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0519 Common Vulnerability Exposure (CVE) ID: CVE-1999-0520 https://exchange.xforce.ibmcloud.com/vulnerabilities/3 Common Vulnerability Exposure (CVE) ID: CVE-2002-1117 Bugtraq: 20020906 UPDATE: (Was Veritas Backup Exec opens networks for NetBIOS based attacks?) (Google Search) http://marc.info/?l=bugtraq&m=103134930629683&w=2 Bugtraq: 20020906 Veritas Backup Exec opens networks for NetBIOS based attacks? (Google Search) http://marc.info/?l=bugtraq&m=103134395124579&w=2 http://www.osvdb.org/8230 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1036 XForce ISS Database: veritas-backupexec-restrictanonymous-zero(10093) https://exchange.xforce.ibmcloud.com/vulnerabilities/10093
Copyright	Copyright (C) 2011 Greenbone AG

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.