CVE-2017-9248 — Progress Telerik UI for ASP.NET AJAX and Sitefinity Cryptographic Weakness Vulnerability

CISA KEV listed Added November 3, 2021 Remediate by May 3, 2022

Description

Progress Telerik UI for ASP.NET AJAX and Sitefinity have a cryptographic weakness in Telerik.Web.UI.dll that can be exploited to disclose encryption keys (Telerik.Web.UI.DialogParametersEncryptionKey and/or the MachineKey), perform cross-site-scripting (XSS) attacks, compromise the ASP.NET ViewState, and/or upload and download files.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2017-9248

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