Microsoft Windows 2000 DNS input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

A vulnerability was found in Microsoft Windows 2000 (Operating System). It has been classified as problematic. This affects an unknown code block of the component DNS. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008, when dynamic updates are enabled, does not restrict registration of the "wpad" hostname, which allows remote authenticated users to hijack the Web Proxy Auto-Discovery (WPAD) feature, and conduct man-in-the-middle attacks by spoofing a proxy server, via a Dynamic Update request for this hostname, aka "DNS Server Vulnerability in WPAD Registration Vulnerability," a related issue to CVE-2007-1692.

The bug was discovered 03/10/2009. The weakness was shared 03/10/2009 by Dave with diverse as MS09-008 as confirmed bulletin (Technet). It is possible to read the advisory at microsoft.com. This vulnerability is uniquely identified as CVE-2009-0093 since 01/08/2009. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3309 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 72835 (MS09-008: Vulnerabilities in DNS Server Could Allow Spoofing (961063) (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family DNS and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90481 (Vulnerabilities in DNS and WINS Server Could Allow Spoofing (MS09-008)).

Upgrading eliminates this vulnerability. Applying the patch MS09-008 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 6855.

The vulnerability is also documented in the databases at X-Force (48909) and Tenable (72835). The entries 47091, 47090 and 47089 are related to this item.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

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Current Price Estimation: 🔍

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Nessus ID: 72835
Nessus Name: MS09-008: Vulnerabilities in DNS Server Could Allow Spoofing (961063) (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 900088
OpenVAS Name: Vulnerabilities in DNS and WINS Server Could Allow Spoofing (962238)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Patch: MS09-008
TippingPoint: 🔍

McAfee IPS: 🔍
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ISS Proventia IPS: 🔍
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Timelineinfo

02/17/2000 🔍
01/08/2009 +3248 days 🔍
03/10/2009 +61 days 🔍
03/10/2009 +0 days 🔍
03/10/2009 +0 days 🔍
03/10/2009 +0 days 🔍
03/10/2009 +0 days 🔍
03/10/2009 +0 days 🔍
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03/10/2009 +0 days 🔍
03/11/2009 +0 days 🔍
03/11/2009 +0 days 🔍
03/13/2009 +2 days 🔍
03/05/2014 +1818 days 🔍
08/30/2019 +2004 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: MS09-008
Researcher: Dave
Organization: diverse
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-0093 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 48909
SecurityTracker: 1021830
Vulnerability Center: 21259 - [MS09-008] Microsoft Windows WPAD Remote Spoofing Web Proxy Vulnerability in DNS Server, High
SecurityFocus: 33989 - Microsoft Windows DNS Server WPAD Access Validation Vulnerability
Secunia: 34217 - Microsoft Windows DNS / WINS Multiple Spoofing Vulnerabilities, Moderately Critical
OSVDB: 52519 - Microsoft Windows DNS Server WPAD Registration Dynamic Update MiTM Weakness
Vupen: ADV-2009-0661

See also: 🔍

Entryinfo

Created: 03/13/2009 15:02
Updated: 08/30/2019 16:23
Changes: 03/13/2009 15:02 (113), 08/30/2019 16:23 (1)
Complete: 🔍

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