Microsoft Windows SMB LsaQueryInformationPolicy Function SID Enumeration Without Credentials

medium Nessus Plugin ID 56210
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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: 1.5

Type: remote

Agent: windows

Family: Windows

Published: 9/15/2011

Updated: 4/29/2021

Dependencies: netbios_name_get.nasl, smb_login.nasl, smb_hotfixes.nasl

Risk Information

CVSS Score Source: CVE-2000-1200


Risk Factor: Low

Score: 1.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

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

Excluded KB Items: SMB/not_windows

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/31/2000

Reference Information

CVE: CVE-2000-1200

BID: 959