Microsoft Internet Explorer 5.x/6 FTP Server NLST memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Internet Explorer 5.x/6. This issue affects some unknown processing of the component FTP Server. The manipulation of the argument NLST leads to memory corruption. This vulnerability is traded as CVE-2009-3023. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is recommended to disable the affected component.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 5.x/6 (Web Browser) and classified as critical. This issue affects an unknown functionality of the component FTP Server. The manipulation of the argument NLST 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. The summary by CVE is:

Buffer overflow in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 6.0 allows remote authenticated users to execute arbitrary code via a crafted NLST (NAME LIST) command that uses wildcards, leading to memory corruption, aka "IIS FTP Service RCE and DoS Vulnerability."

The issue has been introduced in 06/02/1998. The weakness was shared 08/31/2009 by kingcope as MS09-053 (Website). It is possible to read the advisory at blogs.technet.com. The vendor was not involved in the public release. The identification of this vulnerability is CVE-2009-3023 since 08/31/2009. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

A public exploit has been developed by kingcope and been published immediately after the advisory. The exploit is available at exploit-db.com. It is declared as attacked. The vulnerability was handled as a non-public zero-day exploit for at least 4108 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 40825 (MS09-053: Microsoft IIS FTPd NLST Command Remote Buffer Overflow (975191) (uncredentialed check)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27302 (Microsoft FTP Service for Internet Information Services Remote Code Execution Vulnerability (MS09-053 and KB97519)).

The best possible mitigation is suggested to be disabling the affected component. A possible mitigation has been published 2 months after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 1973. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2196.

The vulnerability is also documented in the databases at X-Force (52915), Exploit-DB (9541), Zero-Day.cz (387), Tenable (40825) and SecurityFocus (BID 36189†). theregister.co.uk is providing further details. The entry VDB-4024 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Author: kingcope
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Nessus ID: 40825
Nessus Name: MS09-053: Microsoft IIS FTPd NLST Command Remote Buffer Overflow (975191) (uncredentialed check)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 100952
OpenVAS Name: Microsoft IIS FTPd NLST stack overflow
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Saint ID: exploit_info/iis_ftp_server_nlst
Saint Name: Microsoft IIS FTP Server NLST Command Remote Overflow

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: ms09_053_ftpd_nlst.rb
MetaSploit Name: MS09-053 Microsoft IIS FTP Server NLST Response Overflow
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Exploit-DB: 🔍
Zero-Day.cz: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Disable
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Snort ID: 1973
Snort Message: PROTOCOL-FTP MKD overflow attempt
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Suricata ID: 2009828
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Timelineinfo

06/02/1998 🔍
08/31/2009 +4108 days 🔍
08/31/2009 +0 days 🔍
08/31/2009 +0 days 🔍
08/31/2009 +0 days 🔍
08/31/2009 +0 days 🔍
08/31/2009 +0 days 🔍
08/31/2009 +0 days 🔍
09/01/2009 +1 days 🔍
09/02/2009 +0 days 🔍
09/02/2009 +0 days 🔍
10/13/2009 +41 days 🔍
10/13/2009 +0 days 🔍
01/05/2025 +5563 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS09-053
Researcher: kingcope
Status: Confirmed

CVE: CVE-2009-3023 (🔍)
GCVE (CVE): GCVE-0-2009-3023
GCVE (VulDB): GCVE-100-4019

OVAL: 🔍
IAVM: 🔍

CERT: 🔍
X-Force: 52915
SecurityFocus: 36189 - Microsoft IIS FTPd NLST Remote Buffer Overflow Vulnerability
Secunia: 36443 - Microsoft Internet Information Services FTP Server NLST Buffer Overflow, Moderately Critical
OSVDB: 57589 - Microsoft IIS FTP Server NLST Command Remote Overflow
Vulnerability Center: 23335 - [MS09-053] Microsoft IIS FTP Service NLST Command Remote Code Execution Vulnerability, Critical
Vupen: ADV-2009-2481

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

Created: 09/02/2009 11:44
Updated: 01/05/2025 21:14
Changes: 09/02/2009 11:44 (116), 04/07/2017 12:02 (11), 03/17/2021 12:53 (2), 07/19/2024 02:33 (17), 12/09/2024 05:24 (1), 01/05/2025 21:14 (1)
Complete: 🔍
Cache ID: 216::103

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