Microsoft Internet Explorer file URL encode

ie-file-url-encode (19214) The risk level is classified as MediumMedium Risk

Description:

Microsoft Internet Explorer running on Windows 2000, Windows XP, Windows Server 2003, Windows 98, and Windows ME could allow a remote attacker to execute arbitrary code on the system, caused by a vulnerability in the way Internet Explorer parses and validates certain types of encoded URLs. A remote attacker could create a specially-crafted encoded URL, which would cause a page that would normally be run in the Internet Zone to be run in the less restrictive Intranet Zone or My Computer zone, once the link is clicked. An attacker could exploit this vulnerability to execute arbitrary code on the system with rights of the victim by creating a malicious Web page and hosting it on a Web site or by sending it to a victim as an HTML email.


Consequences:

Gain Access

Remedy:

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

— OR —

Use Microsoft Automatic Update if it is supported by your operating system. The original bulletin issued by Microsoft has been superseded.

References:

Platforms Affected:

  • Microsoft Windows 2000 SP4
  • Microsoft Windows 2000 SP3
  • Microsoft Windows 2003 Server
  • Microsoft Windows 2003 Server Itanium
  • Microsoft Windows 98
  • Microsoft Windows 98SE
  • Microsoft Windows Me
  • Microsoft Windows XP 2003 x64 Itanium
  • Microsoft Windows XP 2003 SP1 x64
  • Microsoft Windows XP SP1
  • Microsoft Windows XP SP2

Reported:

Feb 08, 2005

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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