DNN (DotNetNuke) Upgrade Process ValidationKey Generation Weakness Privilege Escalation

high Nessus Plugin ID 31643

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Synopsis

The remote web server contains an ASP.NET application that allows a remote attacker to bypass authentication.

Description

The version of DNN installed on the remote host appears to be using a default machine key, both 'ValidationKey' and 'DecryptionKey', for authentication token encryption and validation. A remote attacker can leverage this issue to bypass authentication and gain administrative access to the affected application.

Solution

Check that the value for 'validationKey' in DNN's web.config file is not set to 'F9D1A2D3E1D3E2F7B3D9F90FF3965ABDAC304902' and upgrade to DNN version 4.8.2 or later.

Plugin Details

Severity: High

ID: 31643

File Name: dotnetnuke_default_machine_key.nasl

Version: 1.26

Type: remote

Family: CGI abuses

Published: 3/25/2008

Updated: 6/5/2024

Configuration: Enable thorough checks

Supported Sensors: Nessus

Enable CGI Scanning: true

Risk Information

VPR

Risk Factor: Medium

Score: 6.6

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.8

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

Vulnerability Information

CPE: cpe:/a:dotnetnuke:dotnetnuke

Required KB Items: installed_sw/DNN

Excluded KB Items: Settings/disable_cgi_scanning

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 3/14/2008

Vulnerability Publication Date: 3/14/2008

Reference Information

CVE: CVE-2008-6540

BID: 28391

CWE: 264

SECUNIA: 29488

Detections

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