Microsoft IIS 4.0/5.0/5.1 FTP Service 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 identified as problematic has been detected in Microsoft IIS 4.0/5.0/5.1. The impacted element is an unknown function of the component FTP Service. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-2002-0073. Furthermore, there is an exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft IIS 4.0/5.0/5.1 (Web Server). It has been classified as problematic. This affects some unknown functionality of the component FTP Service. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

The FTP service in Internet Information Server (IIS) 4.0, 5.0 and 5.1 allows attackers who have established an FTP session to cause a denial of service via a specially crafted status request containing glob characters.

The bug was discovered 04/10/2002. The weakness was shared 04/10/2002 by H D Moore as confirmed advisory (CERT.org). The advisory is shared at kb.cert.org. This vulnerability is uniquely identified as CVE-2002-0073. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but an exploit is available.

An exploit has been developed in Perl and been published immediately after the advisory. The exploit is shared for download at digitaloffense.net. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 10934 (MS02-018: Microsoft IIS FTP Status Request DoS (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27143 (Microsoft IIS FTP Connection Status Request Denial of Service Vulnerability (MS02-018)).

Upgrading eliminates this vulnerability. Attack attempts may be identified with Snort ID 1777. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1268.

The vulnerability is also documented in the databases at X-Force (8801), Tenable (10934), SecurityFocus (BID 4482†), OSVDB (3328†) and Vulnerability Center (SBV-1128†). The entries VDB-18073, VDB-18072, VDB-18071 and VDB-18070 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 🔍
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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
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10934
Nessus Name: MS02-018: Microsoft IIS FTP Status Request DoS (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800950
OpenVAS Name: Microsoft IIS FTP Connection Status Request Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
Snort ID: 1777
Snort Message: PROTOCOL-FTP EXPLOIT STAT * dos attempt
Snort Class: 🔍

Suricata ID: 2101777
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

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

Timelineinfo

04/10/2002 🔍
04/10/2002 +0 days 🔍
04/10/2002 +0 days 🔍
04/10/2002 +0 days 🔍
04/10/2002 +0 days 🔍
04/22/2002 +12 days 🔍
04/22/2002 +0 days 🔍
04/28/2003 +371 days 🔍
01/06/2004 +253 days 🔍
07/11/2014 +3838 days 🔍
09/23/2025 +4092 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: kb.cert.org
Researcher: H D Moore
Status: Confirmed

CVE: CVE-2002-0073 (🔍)
GCVE (CVE): GCVE-0-2002-0073
GCVE (VulDB): GCVE-100-18069

OVAL: 🔍

CERT: 🔍
X-Force: 8801
SecurityFocus: 4482 - Microsoft IIS FTP Connection Status Request Denial of Service Vulnerability
OSVDB: 3328 - Microsoft IIS FTP Status Request DoS
Vulnerability Center: 1128 - DoS in Microsoft IIS FTP Connection via Malformed Status Requests, Medium

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

Entryinfo

Created: 07/11/2014 13:50
Updated: 09/23/2025 04:26
Changes: 07/11/2014 13:50 (90), 05/09/2019 18:10 (3), 01/21/2025 07:07 (18), 09/23/2025 04:26 (2)
Complete: 🔍
Cache ID: 216::103

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