Microsoft Internet Information Services URL parser buffer overflow

iis-url-memory-corruption (35197) The risk level is classified as HighHigh Risk

Description:

Microsoft Internet Information Services (IIS) is vulnerable to a buffer overflow in the URL parser. By sending a specially-crafted URL request to a Web site running on IIS, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the Web server to crash.

*CVSS:

Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS07-041. See References.

References:

  • BugTraq Mailing List, Fri Dec 16 2005 - 17:46:11 CST: Microsoft IIS Remote Denial of Service (DoS) .DLL Url exploit.
  • HPSBST02243 SSRT071446 rev.1: Storage Management Appliance (SMA), Microsoft Patch Applicability MS07-036 to MS07-041.
  • IBM Internet Security Systems Protection Alert July 10, 2007: Microsoft Internet Information Services Remote Code Execution.
  • Microsoft Security Bulletin MS07-041: Vulnerability in Microsoft Internet Information Services Could Allow Remote Code Execution (939373).
  • BID-15921: Microsoft Internet Information Server 5.1 DLL Request Remote Code Execution Vulnerability
  • CVE-2005-4360: The URL parser in Microsoft Internet Information Services (IIS) 5.1 on Windows XP Professional SP2 allows remote attackers to execute arbitrary code via multiple requests to .dll followed by arguments such as ~0 through ~9, which causes ntdll.dll to produce a return value that is not correctly handled by IIS, as demonstrated using /_vti_bin/.dll/*/~0. NOTE: the consequence was originally believed to be only a denial of service (application crash and reboot).
  • OSVDB ID: 21805: Microsoft IIS Crafted URL Remote DoS
  • SA18106: Microsoft Windows XP IIS URL Request Handling Vulnerability
  • SECTRACK ID: 1015376: Microsoft IIS Lets Remote Users Deny Service With Four Malformed HTTP GET Requests
  • VUPEN/ADV-2005-2963: Microsoft IIS HTTP Requests Remote Denial of Service Vulnerability

Platforms Affected:

  • Microsoft Internet Information Server 5.1
  • Microsoft Windows XP SP2

Reported:

Dec 16, 2005

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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