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Telerik · User Interface (UI) for ASP.NET AJAX

CVE-2017-11317

Telerik UI for ASP.NET AJAX Unrestricted File Upload Vulnerability

Exploited in attacks Critical 9.8 Attack chance: 84%
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What it is

Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX before R1 2017 and R2 before R2 2017 SP2 uses weak RadAsyncUpload encryption, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

CISA: Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: May 2, 2022

Added to the CISA list
April 11, 2022
Published
August 23, 2017
Severity
Critical 9.8 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
84% in the top 0.3% of all known vulnerabilities
Weakness
CWE-326
More details
NVD · CVE.org · CISA
All references (4)

More exploited flaws from Telerik

AddedVulnerabilityProductSeverityAttack chance
Jan 26, 2023UI for ASP.NET AJAX Insecure Direct Object ReferenceCVE-2017-11357used by ransomwareUser Interface (UI) for ASP.NET AJAXCritical 9.878%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.