Microsoft Windows 2000 llssrv.exe memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Windows 2000. Affected is an unknown function of the file llssrv.exe. Such manipulation leads to memory corruption. This vulnerability is documented as CVE-2009-2523. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Microsoft Windows 2000 (Operating System). It has been rated as very critical. Affected by this issue is an unknown functionality of the file llssrv.exe. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."

The issue has been introduced in 02/17/2000. The weakness was released 11/11/2009 by Cody Pierce with Zero Day Initiative (Website). The advisory is available at us-cert.gov. This vulnerability is handled as CVE-2009-2523 since 07/17/2009. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/30/2025).

The vulnerability was handled as a non-public zero-day exploit for at least 3554 days. During that time the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 42443 (MS09-064: Vulnerability in the License Logging Service (974783) (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90567 (Microsoft Windows License Logging Server Remote Code Execution Vulnerability (MS09-064)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9229.

The vulnerability is also documented in the databases at X-Force (53981), Tenable (42443), SecurityFocus (BID 36921†) and Vulnerability Center (SBV-23998†). Entries connected to this vulnerability are available at VDB-50794, VDB-50793, VDB-50792 and VDB-50791. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 42443
Nessus Name: MS09-064: Vulnerability in the License Logging Service (974783) (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 901047
OpenVAS Name: MS Windows License Logging Server Remote Code Execution Vulnerability (974783)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

02/17/2000 🔍
07/17/2009 +3437 days 🔍
11/09/2009 +116 days 🔍
11/09/2009 +0 days 🔍
11/09/2009 +0 days 🔍
11/09/2009 +0 days 🔍
11/10/2009 +1 days 🔍
11/11/2009 +0 days 🔍
11/11/2009 +0 days 🔍
03/18/2015 +1953 days 🔍
03/30/2025 +3665 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: us-cert.gov
Researcher: Cody Pierce
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2009-2523 (🔍)
GCVE (CVE): GCVE-0-2009-2523
GCVE (VulDB): GCVE-100-50786

OVAL: 🔍
IAVM: 🔍

X-Force: 53981
SecurityFocus: 36921 - Microsoft Windows License Logging Server Remote Heap Buffer Overflow Vulnerability
Vulnerability Center: 23998 - [MS09-064] Microsoft Windows 2000 SP4 Buffer Overflow Remote Code Execution and DoS Vulnerability, Critical

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 03/30/2025 04:40
Changes: 03/18/2015 15:15 (72), 09/18/2018 08:44 (14), 03/30/2025 04:40 (19)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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