Microsoft Windows 2000/Server 2003/XP Client Service for Netware memory corruption

CVSS Meta Temp Score
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6.4$0-$5k0.00

A vulnerability has been found in Microsoft Windows 2000/Server 2003/XP (Operating System) and classified as critical. This vulnerability affects an unknown code block of the component Client Service for Netware. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in Client Service for NetWare (CSNW) in Microsoft Windows 2000 SP4, XP SP2, and Server 2003 up to SP1 allows remote attackers to execute arbitrary code via crafted messages, aka "Client Service for NetWare Memory Corruption Vulnerability."

The bug was discovered 11/14/2006. The weakness was released 11/14/2006 by Peter Winter-Smith and Sam Arun Raj (McAfee) with NGS Software as MS06-066 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability was named CVE-2006-4688 since 09/11/2006. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 2462 days. During that time the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 23643 (MS06-066: Vulnerability in the Client Service for NetWare Could Allow Remote Code Execution (923980)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90363 (Client Service for NetWare Multiple Remote Code Execution Vulnerabilities (MS06-066)).

Applying the patch MS06-066 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 9132. In this case the pattern |05 00 00| is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4843.

The vulnerability is also documented in the databases at X-Force (29952) and Tenable (23643). Entry connected to this vulnerability is available at 2688.

Productinfo

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  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
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CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

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Nessus ID: 23643
Nessus Name: MS06-066: Vulnerability in the Client Service for NetWare Could Allow Remote Code Execution (923980)
Nessus File: 🔍
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Saint ID: exploit_info/microsoft_netware_treename
Saint Name: Microsoft Client Service for NetWare tree name buffer overflow

Qualys ID: 🔍
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MetaSploit ID: ms06_066_nwapi.rb
MetaSploit Name: MS06-066 Microsoft Services nwapi32.dll Module Exploit
MetaSploit File: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS06-066

Snort ID: 9132
Snort Message: NETBIOS DCERPC NCACN-IP-TCP netware_cs NwrOpenEnumNdsStubTrees_Any overflow attempt
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Timelineinfo

02/17/2000 🔍
09/11/2006 +2398 days 🔍
11/14/2006 +64 days 🔍
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11/20/2006 +5 days 🔍
07/10/2019 +4615 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS06-066
Researcher: Peter Winter-Smith, Sam Arun Raj (McAfee)
Organization: NGS Software
Status: Confirmed

CVE: CVE-2006-4688 (🔍)
OVAL: 🔍

X-Force: 29952 - Microsoft Windows Client Service for NetWare (CSNW) buffer overflow, High Risk
SecurityTracker: 1017224
Vulnerability Center: 13096 - [MS06-066] Microsoft Windows Client Service for NetWare Memory Corruption Vulnerability, Medium
SecurityFocus: 21023 - Microsoft Windows Client Service For Netware Remote Code Execution Vulnerability
Secunia: 22866 - Microsoft Windows Client Service for Netware Vulnerabilities, Moderately Critical
OSVDB: 30261 - Microsoft Windows Client Service for NetWare (CSNW) Crafted Message Remote DoS
Vupen: ADV-2006-4504

See also: 🔍

Entryinfo

Created: 11/20/2006 11:22
Updated: 07/10/2019 18:20
Changes: 11/20/2006 11:22 (115), 07/10/2019 18:20 (4)
Complete: 🔍

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