Executive Summary
Summary | |
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Title | Vulnerabilities in Internet Information Services (IIS) Could Allow Elevation of Privilege (970483) |
Informations | |||
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Name | MS09-020 | First vendor Publication | 2009-06-09 |
Vendor | Microsoft | Last vendor Modification | 2009-06-17 |
Severity (Vendor) | Important | Revision | 1.1 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:H/Au:N/C:C/I:C/A:C) | |||
---|---|---|---|
Cvss Base Score | 7.6 | Attack Range | Network |
Cvss Impact Score | 10 | Attack Complexity | High |
Cvss Expoit Score | 4.9 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Revision Note: V1.1 (June 17, 2009): Expanded on the "What causes the vulnerability?" FAQ entries for CVE-2009-1122 and CVE-2009-1535. This is an informational change only.Summary: This security update resolves one publicly disclosed vulnerability and one privately reported vulnerability in Microsoft Internet Information Services (IIS). The vulnerabilities could allow elevation of privilege if an attacker sent a specially crafted HTTP request to a Web site that requires authentication. These vulnerabilities allow an attacker to bypass the IIS configuration that specifies which type of authentication is allowed, but not the file system-based access control list (ACL) check that verifies whether a file is accessible by a given user. Successful exploitation of these vulnerabilities would still restrict the attacker to the permissions granted to the anonymous user account by the file system ACLs. |
Original Source
Url : http://www.microsoft.com/technet/security/bulletin/MS09-020.mspx |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-287 | Improper Authentication |
OVAL Definitions
Definition Id: oval:org.mitre.oval:def:5861 | |||
Oval ID: | oval:org.mitre.oval:def:5861 | ||
Title: | IIS 5.0 WebDAV Authentication Bypass Vulnerability | ||
Description: | The WebDAV extension in Microsoft Internet Information Services (IIS) 5.0 on Windows 2000 SP4 does not properly decode URLs, which allows remote attackers to bypass authentication, and possibly read or create files, via a crafted HTTP request, aka "IIS 5.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1535. | ||
Family: | windows | Class: | vulnerability |
Reference(s): | CVE-2009-1122 | Version: | 1 |
Platform(s): | Microsoft Windows 2000 | Product(s): | Microsoft Internet Information Server 5.0 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:6029 | |||
Oval ID: | oval:org.mitre.oval:def:6029 | ||
Title: | IIS 5.1 and 6.0 WebDAV Authentication Bypass Vulnerability | ||
Description: | The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows remote attackers to bypass URI-based protection mechanisms, and list folders or read, create, or modify files, via a %c0%af (Unicode / character) at an arbitrary position in the URI, as demonstrated by inserting %c0%af into a "/protected/" initial pathname component to bypass the password protection on the protected\ folder, aka "IIS 5.1 and 6.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1122. | ||
Family: | windows | Class: | vulnerability |
Reference(s): | CVE-2009-1535 | Version: | 1 |
Platform(s): | Microsoft Windows XP Microsoft Windows Server 2003 | Product(s): | Microsoft Internet Information Server 5.1 Microsoft Internet Information Server 6.0 |
Definition Synopsis: | |||
CPE : Common Platform Enumeration
Type | Description | Count |
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Application | 3 |
OpenVAS Exploits
Date | Description |
---|---|
2009-06-10 | Name : Microsoft IIS Security Bypass Vulnerability (970483) File : nvt/secpod_ms09-020.nasl |
2009-05-20 | Name : Microsoft IIS WebDAV Remote Authentication Bypass Vulnerability File : nvt/secpod_ms_iis_webdav_auth_bypass_vuln.nasl |
Open Source Vulnerability Database (OSVDB)
Id | Description |
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56474 | Microsoft IIS WebDAV Extension URL Decode Crafted HTTP Request Authentication... |
54555 | Microsoft IIS WebDAV Unicode URI Request Authentication Bypass |
Information Assurance Vulnerability Management (IAVM)
Date | Description |
---|---|
2009-06-11 | IAVM : 2009-B-0022 - Multiple vulnerabilities in Microsoft Internet Information Services (IIS) Severity : Category II - VMSKEY : V0019400 |
Snort® IPS/IDS
Date | Description |
---|---|
2019-01-15 | (http_inspect)unicodemapcodepointencodinginURI RuleID : 7 - Revision : 2 - Type : |
2014-01-10 | WebDAV Request Directory Security Bypass attempt RuleID : 17564 - Revision : 7 - Type : SERVER-IIS |
2014-01-10 | VideoLAN VLC Media Player MP4_BoxDumpStructure Buffer Overflow RuleID : 17527 - Revision : 11 - Type : FILE-MULTIMEDIA |
2014-01-10 | Microsoft Windows IIS 5.0 WebDav Request Directory Security Bypass RuleID : 17525 - Revision : 9 - Type : SERVER-IIS |
Metasploit Database
id | Description |
---|---|
2020-05-23 | MS09-020 IIS6 WebDAV Unicode Authentication Bypass |
2020-05-23 | MS09-020 IIS6 WebDAV Unicode Auth Bypass Directory Scanner |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2009-06-10 | Name : It is possible to bypass authentication on the remote web server. File : smb_nt_ms09-020.nasl - Type : ACT_GATHER_INFO |
2009-05-18 | Name : It is possible to access protected resources through WebDAV. File : webdav_iis6_flaw.nasl - Type : ACT_ATTACK |
Alert History
Date | Informations |
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2020-05-23 13:17:13 |
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2015-01-14 13:23:36 |
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2014-02-17 11:46:14 |
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2013-11-11 12:41:11 |
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