Microsoft Windows NT 4.0 Remote Registry Request denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Windows NT 4.0. It has been declared as problematic. This affects an unknown part of the component Remote Registry Request Handler. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2000-0377. Furthermore, there is an exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows NT 4.0 (Operating System). Affected by this issue is some unknown processing of the component Remote Registry Request Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

The Remote Registry server in Windows NT 4.0 allows local authenticated users to cause a denial of service via a malformed request, which causes the winlogon process to fail, aka the "Remote Registry Access Authentication" vulnerability.

The weakness was shared 06/08/2000 with Nessus.org as MS00-040 as confirmed bulletin (Technet). The advisory is shared for download at microsoft.com. This vulnerability is handled as CVE-2000-0377. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at securityfocus.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10414 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 70021 (Microsoft Windows NT 4.0 Remote Registry Request Denial of Service Vulnerability).

Applying the patch MS00-040 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Attack attempts may be identified with Snort ID 3218. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1577.

The vulnerability is also documented in the databases at X-Force (4648), Exploit-DB (20005), Tenable (10414), SecurityFocus (BID 1331†) and Vulnerability Center (SBV-127†). Once again VulDB remains the best 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: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10414

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS00-040

Snort ID: 3218
Snort Message: OS-WINDOWS DCERPC NCACN-IP-TCP winreg OpenKey overflow attempt
Snort Class: 🔍

Suricata ID: 2103222
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

06/08/2000 🔍
06/08/2000 +0 days 🔍
06/08/2000 +0 days 🔍
06/08/2000 +0 days 🔍
10/15/2002 +859 days 🔍
06/25/2014 +4271 days 🔍
10/16/2025 +4131 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS00-040
Organization: Nessus.org
Status: Confirmed

CVE: CVE-2000-0377 (🔍)
GCVE (CVE): GCVE-0-2000-0377
GCVE (VulDB): GCVE-100-15644

OVAL: 🔍

X-Force: 4648
SecurityFocus: 1331 - Microsoft Windows NT 4.0 Remote Registry Request Dos Vulnerability
Vulnerability Center: 127 - [MS00-040] DoS in Windows NT Winlogon Process via Malformed Remote Authentication Requests, Medium

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

Entryinfo

Created: 06/25/2014 11:10
Updated: 10/16/2025 11:52
Changes: 06/25/2014 11:10 (78), 05/05/2019 08:12 (1), 02/22/2025 07:35 (17), 10/16/2025 11:52 (2)
Complete: 🔍
Cache ID: 216:974:103

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