OSVDB ID: 436

Title: Microsoft IIS Unicode Remote Command Execution

Info

Disclosure

Oct 17, 2000

Discovery

Unknown

Dates

Exploit

Oct 17, 2000

Solution

Unknown

Description

Microsoft Internet Information Server (IIS) contain a flaw that allows a remote attacker to access any file or folder on the Web Server with "anonymous" access. The issue is due to IIS failing to handle Unicode characters in URI requests. By replacing slashes and backslashes with their Unicode equivilent, an attacker can bypass the sanity checks present in IIS that would normally filter and deny such requests.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS
Exploit: Exploit Public, Exploit Commercial
Disclosure: Vendor Verified
OSVDB: Web Related

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch to address this vulnerability.

Products

Microsoft Corporation

IIS

4.0
5.0

References

Credit

Unknown or Incomplete



Direct URL: http://osvdb.org/436