CVE-2017-9248

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...

Basic Information

CVE State
PUBLISHED
Reserved Date
May 28, 2017
Published Date
July 03, 2017
Last Updated
October 21, 2025
Vendor
Progress
Product
Telerik UI for ASP.NET AJAX
Description
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.
Tags
dotnet cisa

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5

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

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2021-11-03 00:00:00 UTC) Source

Known Exploited Vulnerability Information

Source Added Date
CISA 2021-11-03 00:00:00 UTC
CISA 2021-11-03 00:00:00 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

hlong12042/CVE-2017-9248

Type: github • Created: 2024-07-17 14:49:07 UTC • Stars: 0

cehamod/UI_CVE-2017-9248

Type: github • Created: 2023-06-05 00:48:24 UTC • Stars: 0

Base64-based encryption oracle exploit for CVE-2017-9248 (Telerik UI for ASP.NET AJAX dialog handler)

ictnamanh/CVE-2017-9248

Type: github • Created: 2019-10-23 13:57:11 UTC • Stars: 0

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Added to KEVIntel