Microsoft Windows 2000 Telnet Session denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Microsoft Windows 2000. This vulnerability affects unknown code of the component Telnet Session Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2001-0345. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Windows 2000 (Operating System). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Telnet Session Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Microsoft Windows 2000 telnet service allows attackers to prevent idle Telnet sessions from timing out, causing a denial of service by creating a large number of idle sessions.

The issue has been introduced in 02/17/2000. The weakness was presented 07/21/2001 with Microsoft as MS01-031 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2001-0345. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 520 days. During that time the estimated underground price was around $25k-$100k.

Applying the patch MS01-031 is able to eliminate this problem. The bugfix is ready for download at microsoft.com.

The vulnerability is also documented in the databases at X-Force (6667), SecurityFocus (BID 2843†) and Vulnerability Center (SBV-4279†). See VDB-17054, VDB-17055, VDB-17056 and VDB-17058 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• 2000

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS01-031

Timelineinfo

02/17/2000 🔍
06/07/2001 +476 days 🔍
06/07/2001 +0 days 🔍
07/21/2001 +44 days 🔍
07/21/2001 +0 days 🔍
05/10/2004 +1024 days 🔍
07/07/2014 +3710 days 🔍
05/21/2019 +1779 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS01-031
Organization: Microsoft
Status: Confirmed

CVE: CVE-2001-0345 (🔍)
GCVE (CVE): GCVE-0-2001-0345
GCVE (VulDB): GCVE-100-17053
X-Force: 6667 - Microsoft Windows 2000 Telnet multiple idle sessions denial of service
SecurityFocus: 2843 - Microsoft Windows 2000 Telnet Multiple Sessions DoS Vulnerability
Vulnerability Center: 4279 - [MS01-031] DoS in Microsoft Windows 200 Telnet Service via Multiple Idle Connections, Medium

See also: 🔍

Entryinfo

Created: 07/07/2014 15:31
Updated: 05/21/2019 15:03
Changes: 07/07/2014 15:31 (46), 05/21/2019 15:03 (22)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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