Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.

According to its self-reported version number, the version of Telerik UI for ASP.NET is affected by a cryptographic weakness.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Sitefinity installed on the remote host is prior to 10.0.6412.0. It is, therefore, affected by multiple vulnerabilities in Telerik DialogHandler and RadAsyncUpload :

 - A cryptographic weakness exists in Telerik.Web.UI that can be exploited to disclose encryption keys

 - An unrestricted file upload vulnerability exists in Telerik.Web.UI due to weak encryption

 - An insecure direct object reference vulnerability exists in Telerik.Web.UI due to user input used directly by RadAsyncUpload without validation

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Telerik UI for ASP.NET AJAX installed on the remote Windows host is affected by a cryptographic weakness in Telerik.Web.UI.dll. An unauthenticated, remote attacker can exploit this, via specially crafted data, to disclose encryption keys.

ID	Name	Product	Family	Severity
112523	Telerik UI for ASP.NET AJAX Cryptographic Weakness	Web App Scanning	Component Vulnerability	critical
112501	Sitefinity < 10.0.6412.0 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	critical
101159	Telerik UI for ASP.NET AJAX Cryptographic Weakness	Nessus	Windows	critical

Detections

Analytics

CVE-2017-9248

critical

Tenable Plugins

critical

critical

critical