Microsoft IIS Far East editions file disclosure

iis-file-disclosure (5729) The risk level is classified as MediumMedium Risk

Description:

Microsoft Internet Information Server (IIS) could allow a remote attacker to view files in the Web directory. Vulnerable systems include Web servers that use Chinese, Japanese, or Korean as their default language. Due to improper validation of HTTP requests containing double-byte character sets, a remote attacker can submit a specially-crafted HTTP request with incomplete double-byte characters to cause IIS to open files that cannot be interpreted, such as text files (including Active Server Pages) or binary system files. An attacker can use this vulnerability to gain access to sensitive information.


Consequences:

Gain Access

Remedy:

No remedy available as of February 6, 2010.

References:

  • NSFOCUS Security Advisory SA2000-08: Microsoft IIS for Far East Editions File Disclosure Vulnerability.
  • BID-2100: Microsoft IIS Far East Edition DBCS File Disclosure Vulnerability
  • CVE-2000-1090: Microsoft IIS for Far East editions 4.0 and 5.0 allows remote attackers to read source code for parsed pages via a malformed URL that uses the lead-byte of a double-byte character.

Platforms Affected:

  • Microsoft Internet Information Services 4.0 Far East
  • Microsoft Internet Information Services 5.0 Far East

Reported:

Dec 13, 2000

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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