Version Disclosure (ASP.NET)

Severity: Low
Summary#

Invicti identified a version disclosure (ASP.NET) in the target web server's HTTP response.

This information can help an attacker gain a greater understanding of the systems in use and potentially develop further attacks targeted at the specific version of ASP.NET.

Impact#
An attacker might use the disclosed information to harvest specific security vulnerabilities for the version identified.
Remediation#
Apply the following changes to your web.config file to prevent information leakage by using custom error pages and removing X-AspNet-Version from HTTP responses.
<System.Web>
     <httpRuntime enableVersionHeader="false" />
     <customErrors mode="On" defaultRedirect="~/error/GeneralError.aspx">
          <error statusCode="403" redirect="~/error/Forbidden.aspx" />
          <error statusCode="404" redirect="~/error/PageNotFound.aspx" />
          <error statusCode="500" redirect="~/error/InternalError.aspx" />
     </customErrors>
</System.Web>

Build your resistance to threats. And save hundreds of hours each month.

Get a demo See how it works