Microsoft SQL Server 2000 Keep-Alive infinite loop

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

A vulnerability has been found in Microsoft SQL Server 2000 (Database Software) and classified as problematic. This vulnerability affects some unknown processing of the component Keep-Alive Handler. The manipulation with an unknown input leads to a infinite loop vulnerability. The CWE definition for the vulnerability is CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. As an impact it is known to affect availability. CVE summarizes:

The keep-alive mechanism for Microsoft SQL Server 2000 allows remote attackers to cause a denial of service (bandwidth consumption) via a "ping" style packet to the Resolution Service (UDP port 1434) with a spoofed IP address of another SQL Server system, which causes the two servers to exchange packets in an infinite loop.

The weakness was presented 07/25/2002 by David Litchfield with Next Generation Security Software as MS02-039 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability was named CVE-2002-0650. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but an exploit is available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 11214 (MS02-061: Microsoft SQL Server Multiple Vulnerabilities (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Databases. The commercial vulnerability scanner Qualys is able to test this issue with plugin 19062 (Multiple MS-SQL-2000 (MS-SQL-8 ) threats - (III)).

Applying the patch MS02-039 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 1482.

The vulnerability is also documented in the databases at X-Force (9666) and Tenable (11214).

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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CVSSv2info

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Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Nessus ID: 11214
Nessus Name: MS02-061: Microsoft SQL Server Multiple Vulnerabilities (uncredentialed check)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS02-039
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Timelineinfo

07/25/2002 🔍
07/25/2002 +0 days 🔍
07/25/2002 +0 days 🔍
08/12/2002 +18 days 🔍
08/12/2002 +0 days 🔍
02/18/2003 +190 days 🔍
06/01/2003 +102 days 🔍
07/22/2014 +4069 days 🔍
06/27/2021 +2532 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS02-039
Researcher: David Litchfield
Organization: Next Generation Security Software
Status: Confirmed

CVE: CVE-2002-0650 (🔍)
X-Force: 9666
Vulnerability Center: 1179 - [MS02-039] Microsoft SQL Server 2000 Resolution Service Keep-Alive Mechanism DoS, High
SecurityFocus: 5312
OSVDB: 878 - Microsoft SQL Resolution Service Keep-Alive Function DoS

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

Entryinfo

Created: 07/22/2014 22:35
Updated: 06/27/2021 14:26
Changes: 07/22/2014 22:35 (78), 06/08/2017 23:46 (2), 06/27/2021 14:26 (2)
Complete: 🔍
Cache ID: 3:789:103

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