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CVE-2017-11357: Telerik UI for ASP.NET AJAX Insecure Direct Object Reference Vulnerability

criticalknown exploitedpublic exploitCVE-2017-11357
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Telerik UI for ASP.NET AJAX contains an insecure direct object reference vulnerability in RadAsyncUpload that can result in file uploads in a limited location and/or remote code execution.

CSIRTS triage

What
An insecure direct object reference vulnerability can result in file uploads and/or remote code execution.
Who is affected
Users of Telerik UI for ASP.NET AJAX are affected.
Urgency
Immediate remediation is necessary due to active exploitation and critical severity.
Action
Update to the latest version of Telerik UI for ASP.NET AJAX.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-01-26
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-11357

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-11357coverage & exploitation statusNVD · CVE.org

Recent advisories for Telerik UI for

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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