Microsoft Windows Server 2003 R2 IIS 6.0 WebDAV PROPFIND Request Handling RCE (EXPLODINGCAN)

critical Nessus Plugin ID 99281

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Synopsis

The remote Windows host is affected by a remote code execution vulnerability.

Description

The remote host is running Windows Server 2003 R2 and Internet Information Services (IIS) 6.0 with WebDAV enabled. It is, therefore, affected by a buffer overflow condition in the IIS WebDAV service due to improper handling of the 'If' header in a PROPFIND request. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to cause a denial of service condition or the execution of arbitrary code.

EXPLODINGCAN is one of multiple Equation Group vulnerabilities and exploits disclosed on 2017/04/14 by a group known as the Shadow Brokers.

Solution

Windows Server 2003 R2 and IIS 6.0 are no longer maintained or supported by Microsoft. Upgrade to a currently supported version of Microsoft Windows and IIS. Alternatively, disable either IIS or WebDAV.

Plugin Details

Severity: Critical

ID: 99281

File Name: iis6_webdav_cve-2017-7269.nasl

Version: 1.13

Type: remote

Family: Web Servers

Published: 4/11/2017

Updated: 4/25/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2017-7269

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows, cpe:/a:microsoft:iis

Required KB Items: Settings/ParanoidReport, www/iis

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 3/26/2017

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Microsoft IIS WebDav ScStoragePathFromUrl Overflow)

Reference Information

CVE: CVE-2017-7269

BID: 97127

Detections

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