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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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows NT 4.0/2000. It has been rated as critical. This affects an unknown function of the component User Access Policy. The manipulation leads to improper authentication. This vulnerability is documented as CVE-1999-0505. The attack needs to be performed locally. There is not any exploit available. Due to its background and reception, this vulnerability has an historic impact. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Windows NT 4.0/2000 (Operating System). This issue affects an unknown function of the component User Access Policy. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A Windows NT domain user or administrator account has a guessable password.

The weakness was released 10/01/1998. The identification of this vulnerability is CVE-1999-0505. The exploitation is known to be easy. Attacking locally is a requirement. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/23/2021). Due to its background and reception, this vulnerability has a historic impact.

The vulnerability scanner Nessus provides a plugin with the ID 26919 (Microsoft Windows SMB Guest Account Local User 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 5005 (NetBIOS Brute Force of Accounts).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (1331), Tenable (26919) and Vulnerability Center (SBV-2440†). Entries connected to this vulnerability are available at VDB-13819, VDB-13823 and VDB-14232. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 26919
Nessus Name: Microsoft Windows SMB Guest Account Local User Access
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/01/1998 🔍
10/01/1998 +0 days 🔍
10/01/1998 +0 days 🔍
10/15/2003 +1840 days 🔍
10/04/2007 +1450 days 🔍
06/19/2014 +2450 days 🔍
06/23/2021 +2561 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Status: Not defined

CVE: CVE-1999-0505 (🔍)
GCVE (CVE): GCVE-0-1999-0505
GCVE (VulDB): GCVE-100-14231
X-Force: 1331
Vulnerability Center: 2440 - Windows NT Weak Domain Guest Password, Medium

See also: 🔍

Entryinfo

Created: 06/19/2014 17:41
Updated: 06/23/2021 08:17
Changes: 06/19/2014 17:41 (39), 04/07/2017 16:02 (22), 06/23/2021 08:17 (3)
Complete: 🔍
Cache ID: 216:7AC:103

Be aware that VulDB is the high quality source for vulnerability data.

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