Microsoft Windows NT 4.0 LPC NtImpersonateClientOfPort privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows NT 4.0. Affected by this issue is the function NtImpersonateClientOfPort of the component LPC. This manipulation causes privileges management. This vulnerability is tracked as CVE-2000-0070. The attack is restricted to local execution. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Windows NT 4.0 (Operating System). Affected by this vulnerability is the function NtImpersonateClientOfPort of the component LPC. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NtImpersonateClientOfPort local procedure call in Windows NT 4.0 allows local users to gain privileges, aka "Spoofed LPC Port Request."

The weakness was disclosed 01/12/2000 with BindView as not defined advisory (Website). It is possible to read the advisory at bindview.com. This vulnerability is known as CVE-2000-0070. The exploitation appears to be easy. Attacking locally is a requirement. The successful exploitation needs a single authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 90146 (Microsoft Spoofed LPC Port Required Vulnerability (MS00-003)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (3821), SecurityFocus (BID 934†) and Vulnerability Center (SBV-769†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/12/2000 🔍
01/12/2000 +0 days 🔍
01/12/2000 +0 days 🔍
01/13/2000 +1 days 🔍
01/30/2003 +1113 days 🔍
06/23/2014 +4162 days 🔍
10/19/2025 +4136 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: bindview.com
Organization: BindView
Status: Confirmed

CVE: CVE-2000-0070 (🔍)
GCVE (CVE): GCVE-0-2000-0070
GCVE (VulDB): GCVE-100-15247
X-Force: 3821
SecurityFocus: 934
Vulnerability Center: 769 - [MS00-003] NT LPC Privilege Escalation Vulnerability, Medium

Entryinfo

Created: 06/23/2014 15:41
Updated: 10/19/2025 21:11
Changes: 06/23/2014 15:41 (61), 10/19/2025 21:11 (19)
Complete: 🔍
Cache ID: 216::103

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

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