Rapid7 Vulnerability & Exploit Database

Microsoft IIS WebDAV Denial of Service Vulnerability

Back to Search

Microsoft IIS WebDAV Denial of Service Vulnerability

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
06/02/2001
Created
07/25/2018
Added
11/01/2004
Modified
12/04/2013

Description

WebDAV is an extension of the HTTP protocol and by default installs on Microsoft IIS 5.0. WebDav enables remote users to manage and collaboratively edit files on remote web servers.

Microsoft IIS is subject to a denial of service attack. Because WebDAV contains a flaw in the handling of certain malformed requests, an attacker submitting multiple malformed WebDAV 'PROPFIND' requests could cause the server to stop responding, leaving the server unable to accept any new HTTP sessions.

The duration of the denial of service is dependant on the amount of time an attacker would continuously send the request. Once the malformed requests come to an end, the server will gain normal functionality.

This vulnerability has also been known to restart the IIS services.

Solution(s)

  • http-iis-0046

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;