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CVE-2017-11357

Telerik UI for ASP.NET AJAX Insecure Direct Object Reference

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 77.7%
  1. Published23 Aug 2017
  2. Added to CISA KEV26 Jan 2023
  3. Remediation due16 Feb 2023
Actively exploited (CISA KEV)

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.

Added to KEV: 26 Jan 2023Federal remediation due: 16 Feb 2023Used in ransomware

Description

Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Progress Telerik UI For Asp.net Ajax< 2020.1.114

Remediation

Fixed in
Progress Telerik UI For Asp.net Ajax≥ 2020.1.114

References

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Frequently asked

Is CVE-2017-11357 being actively exploited?

Yes. CVE-2017-11357 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 26 Jan 2023. It has been used in ransomware campaigns.

How severe is CVE-2017-11357?

CVE-2017-11357 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 77.7% probability of exploitation.

Which products are affected by CVE-2017-11357?

Affected products include Progress Telerik UI For Asp.net Ajax.

How do I fix CVE-2017-11357?

Upgrade affected software to a fixed version, for example Progress Telerik UI For Asp.net Ajax 2020.1.114 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-11357 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.