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Microsoft Windows SMB/NETBIOS NULL Session Authentication Bypass Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The host is running SMB/NETBIOS and prone to an authentication bypass vulnerability
Insight
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.
Affected Software
Affected Software
Microsoft Windows 95, Microsoft Windows 98, Microsoft Windows NT. Other Windows implementations / versions might be affected as well.
Solution
Solution
No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one. A workaround is to, - Disable null session login. - Remove the share. - Enable passwords on the share.