Microsoft Windows SMB LsaQueryInformationPolicy Function SID Enumeration Without Credentials

Medium Nessus Plugin ID 56210


It is possible to obtain the host SID for the remote host, without credentials.


By emulating the call to LsaQueryInformationPolicy(), it was possible to obtain the host SID (Security Identifier), without credentials.

The host SID can then be used to get the list of local users.


You can prevent anonymous lookups of the host SID by setting the 'RestrictAnonymous' registry setting to an appropriate value.

Refer to the 'See also' section for guidance.

See Also

Plugin Details

Severity: Medium

ID: 56210

File Name: smb_host2sid_null_session.nasl

Version: $Revision: 1.3 $

Type: remote

Agent: windows

Family: Windows

Published: 2011/09/15

Modified: 2014/04/11

Dependencies: 10150, 13855, 10394

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:H/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/transport, SMB/name, SMB/null_session_enabled

Excluded KB Items: SMB/not_windows

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 2000/01/31

Reference Information

CVE: CVE-2000-1200

BID: 959

OSVDB: 715