Host NetBIOS/SMB Share privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Host. Affected by this vulnerability is an unknown functionality of the component NetBIOS/SMB Share. The manipulation leads to privileges management. This vulnerability is listed as CVE-1999-0520. In addition, an exploit is available. This vulnerability is historically significant due to its background and the way it was received. It is suggested to update the configuration settings.

Detailsinfo

A vulnerability was found in Host (the affected version is unknown) and classified as critical. This issue affects an unknown code of the component NetBIOS/SMB Share. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, and integrity. The summary by CVE is:

A system-critical NETBIOS/SMB share has inappropriate access control.

The weakness was presented 01/01/1999. The identification of this vulnerability is CVE-1999-0520. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/26/2025). MITRE ATT&CK project uses the attack technique T1068 for this issue. Due to its background and reception, this vulnerability has a historic impact.

It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 42411 (Microsoft Windows SMB Shares Unprivileged Access), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 70037 (NetBIOS Anonymous Access Configuration Not Set To Most Secure Value).

It is possible to mitigate the problem by applying the configuration setting .Addressing this vulnerability is possible by firewalling Ports 137-139, 445. The best possible mitigation is suggested to be the change of configuration settings. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2176.

The vulnerability is also documented in the databases at X-Force (15), Tenable (42411) and Vulnerability Center (SBV-42248†). See VDB-14335, VDB-14334, VDB-14331 and VDB-14330 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.5
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 42411
Nessus Name: Microsoft Windows SMB Shares Unprivileged Access
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Config
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

01/01/1999 🔍
01/01/1999 +0 days 🔍
01/01/1999 +0 days 🔍
11/12/2013 +5429 days 🔍
06/19/2014 +219 days 🔍
10/26/2025 +4146 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-1999-0520 (🔍)
GCVE (CVE): GCVE-0-1999-0520
GCVE (VulDB): GCVE-100-14333
X-Force: 15
Vulnerability Center: 42248 - A NETBIOS/SMB Share has Inappropriate Access Control, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/20/2014 00:41
Updated: 10/26/2025 00:26
Changes: 06/20/2014 00:41 (60), 05/15/2017 11:19 (2), 06/23/2021 08:48 (3), 10/26/2025 00:26 (20)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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