Detections
Analytics

SMB Use Host SID to Enumerate Local Users Without Credentials

medium Nessus Plugin ID 56211

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Synopsis

Nessus was able to enumerate local users, without credentials.

Description

Using the host security identifier (SID), Nessus was able to enumerate local users on the remote Windows system, without credentials.

Solution

You can prevent anonymous enumeration of local users by setting the 'RestrictAnonymous' registry setting to an appropriate value.\n\nRefer to the 'See also' section for guidance.

See Also

http://www.nessus.org/u?bb46ad00

Plugin Details

Severity: Medium

ID: 56211

File Name: smb_sid2localuser_null_session.nasl

Version: 1.13

Type: Remote

Agent: windows

Published: 9/15/2011

Updated: 8/26/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2000-1200

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/name, SMB/transport, SMB/null_session/host_sid

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 4/28/1998

Reference Information

CVE: CVE-2000-1200

BID: 959