CVE-2017-9248

9.8 CRITICAL CISA KEV - Actively Exploited
Published: July 03, 2017 Modified: October 22, 2025
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/99965
Source: cve@mitre.org
Broken Link Third Party Advisory VDB Entry
http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity
Source: cve@mitre.org
Vendor Advisory
http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness
Source: cve@mitre.org
Mitigation Vendor Advisory
https://www.exploit-db.com/exploits/43873/
Source: cve@mitre.org
Exploit Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/99965
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Vendor Advisory
https://www.exploit-db.com/exploits/43873/
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9248
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

9 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
87.8%
99th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-05-03

Weaknesses (CWE)

CWE-522 CWE-522

Affected Vendors

progress telerik

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