Microsoft Windows NT 4.0/2000 User Access Policy improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Windows NT 4.0/2000. This impacts an unknown function of the component User Access Policy. The manipulation results in improper authentication. This vulnerability is reported as CVE-1999-0506. The attack requires a local approach. No exploit exists. Changing the configuration settings is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows NT 4.0/2000 (Operating System). Affected is an unknown functionality of the component User Access Policy. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A Windows NT domain user or administrator account has a default, null, blank, or missing password.

The weakness was disclosed 10/01/1998. This vulnerability is traded as CVE-1999-0506. The exploitability is told to be easy. The attack needs to be approached locally. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available.

It is declared as highly functional. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10404 (Microsoft Windows SMB Guessable User Credentials), 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 5005 (NetBIOS Brute Force of Accounts).

It is possible to mitigate the problem by applying the configuration setting .

The vulnerability is also documented in the databases at X-Force (3420), Tenable (10404) and Vulnerability Center (SBV-1112†). The entries VDB-13819, VDB-13823 and VDB-14231 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10404
Nessus Name: Microsoft Windows SMB Guessable User Credentials
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: mssql_login.rb
MetaSploit Name: MSSQL Login Utility
MetaSploit File: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Config
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/01/1998 🔍
10/01/1998 +0 days 🔍
10/01/1998 +0 days 🔍
03/23/2003 +1634 days 🔍
06/19/2014 +4106 days 🔍
06/23/2021 +2561 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Status: Not defined

CVE: CVE-1999-0506 (🔍)
GCVE (CVE): GCVE-0-1999-0506
GCVE (VulDB): GCVE-100-14232
X-Force: 3420
Vulnerability Center: 1112 - Windows NT Domain User/Administrator Account with Default, Null, Blank or Missing Password, High

See also: 🔍

Entryinfo

Created: 06/19/2014 17:41
Updated: 06/23/2021 08:20
Changes: 06/19/2014 17:41 (39), 04/07/2017 16:02 (24), 06/23/2021 08:20 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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