Logfiles contents after exception may lead to information leakage

Published: June 14, 2010

Version: 1.0

Maximum Severity Rating: Low

Background

DotNetNuke creates a series of log files for database operations during install and upgrade.

Issue Summary

If during install/upgrade an error occurs, the exception details are written to the logfiles. There is a small possibility that information in these files could prove useful to a potential hacker.

In addition, the existance of log files can be helpful to hackers when attempting to profile an application to determine it's version.

Mitigating factors

N/A

Affected DotNetNuke versions

All

Non-Affected Versions:

N/A

Fix(s) for issue

To fix this problem, you are recommended to update to the latest version of DotNetNuke (5.4.3 at time of writing).

Alternatively users can block access to log files by adding the following to their web.config's HttpHandler section.

<add verb="*" path="*.log" type="System.Web.HttpForbiddenHandler"/>

Acknowledgments

PowerDNN Engineering Team

Security Policy

Click here to read more details on the DotNetNuke Security Policy

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DotNetNuke Corporation

DotNetNuke Corp. is the steward of the DotNetNuke open source project, the most widely adopted Web Content Management Platform for building web sites and web applications on Microsoft .NET. Organizations use DotNetNuke to quickly develop and deploy interactive and dynamic web sites, intranets, extranets and web applications. The DotNetNuke platform is available in a free Community and subscription-based Professional and Enterprise Editions with an Elite Support option. DotNetNuke Corp. also operates Snowcovered.com where users purchase third party apps for the platform.