Microsoft Windows 95/98 NetBIOS NULL Source Name 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 classified as problematic was found in Microsoft Windows 95/98. This affects an unknown part of the component NetBIOS Handler. Such manipulation as part of NULL Source Name leads to denial of service. This vulnerability is uniquely identified as CVE-2000-0347. Moreover, an exploit is present. This vulnerability has a historic impact due to its background and reception. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Microsoft Windows 95/98 (Operating System) and classified as problematic. Affected by this issue is an unknown function of the component NetBIOS Handler. The manipulation as part of a NULL Source Name 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:

Windows 95 and Windows 98 allow a remote attacker to cause a denial of service via a NetBIOS session request packet with a NULL source name.

The issue has been introduced in 08/24/1995. The weakness was disclosed 05/02/2000 as not defined posting (NTBugtraq). The advisory is shared for download at marc.theaimsgroup.com. This vulnerability is handled as CVE-2000-0347. 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 current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/02/2025). This vulnerability has a historic impact due to its background and reception.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1713 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 10392 (Microsoft Windows NetBIOS NULL Source Name Remote DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 70013 (Microsoft Windows 9x NetBIOS NULL Name Vulnerability).

Upgrading to version ME, XP or 2000 eliminates this vulnerability. Attack attempts may be identified with Snort ID 530. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1231.

The vulnerability is also documented in the databases at X-Force (4397), Exploit-DB (19889), Tenable (10392), SecurityFocus (BID 1163†) and Vulnerability Center (SBV-123†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

Website

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

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10392
Nessus Name: Microsoft Windows NetBIOS NULL Source Name Remote DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Windows ME/XP/2000

Snort ID: 530
Snort Message: OS-WINDOWS NT NULL session
Snort Class: 🔍

Suricata ID: 2100530
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

08/24/1995 🔍
05/02/2000 +1713 days 🔍
05/02/2000 +0 days 🔍
05/02/2000 +0 days 🔍
05/02/2000 +0 days 🔍
05/03/2000 +1 days 🔍
10/15/2002 +895 days 🔍
06/24/2014 +4270 days 🔍
06/02/2025 +3996 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: marc.theaimsgroup.com
Status: Confirmed

CVE: CVE-2000-0347 (🔍)
GCVE (CVE): GCVE-0-2000-0347
GCVE (VulDB): GCVE-100-15512
X-Force: 4397
SecurityFocus: 1163 - Microsoft Windows 9x NetBIOS NULL Name Vulnerability
Vulnerability Center: 123 - DoS in Windows 95/98 Netbios via Session Request with NULL Source Name, High

scip Labs: https://www.scip.ch/en/?labs.20140213

Entryinfo

Created: 06/24/2014 15:21
Updated: 06/02/2025 11:00
Changes: 06/24/2014 15:21 (88), 05/05/2019 07:33 (1), 06/02/2025 11:00 (19)
Complete: 🔍
Cache ID: 216:87B:103

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

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