Microsoft ASP.NET MS-DOS Device Name DoS (PCI-DSS check)

medium Nessus Plugin ID 64589

Synopsis

A framework used by the remote web server has a denial of service vulnerability.

Description

The web server running on the remote host appears to be using Microsoft ASP.NET, and may be affected by a denial of service vulnerability. Requesting a URL containing an MS-DOS device name can cause the web server to become temporarily unresponsive. An attacker could repeatedly request these URLs, resulting in a denial of service.

Additionally, there is speculation that this vulnerability could result in code execution if an attacker with physical access to the machine connects to a serial port.

This plugin does not attempt to exploit the vulnerability and only runs when 'Check for PCI-DSS compliance' is enabled in the scan policy. This plugin reports all web servers using ASP.NET 1.1. If it cannot determine the version, it will report all web servers using ASP.NET. Manual verification is required to determine if a vulnerability is present.

Solution

Use an ISAPI filter to block requests for URLs with MS-DOS device names.

See Also

https://seclists.org/fulldisclosure/2007/May/378

https://seclists.org/fulldisclosure/2007/May/415

http://www.nessus.org/u?d32fbf50

Plugin Details

Severity: Medium

ID: 64589

File Name: asp_net_device_dos2.nasl

Version: 1.9

Type: remote

Family: Web Servers

Published: 2/13/2013

Updated: 4/11/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information

CVSS Score Rationale: An in-depth analysis by tenable researchers revealed this to be a dos only exploit.

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: manual

Vulnerability Information

CPE: cpe:/a:microsoft:asp.net, cpe:/o:microsoft:windows

Required KB Items: Settings/PCI_DSS

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 5/22/2007

Reference Information

CVE: CVE-2007-2897

BID: 51527