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CVE-2017-11317

9.8 · CRITICALActively Exploited

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…

Published Aug 23, 2017CWE-326EPSS 84.17%

Overview

CVE-2017-11317 is a critical-severity vulnerability. It was published on August 23, 2017 and has a CVSS 3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.htmlRefwww.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-uploadRefpsirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006Refwww.exploit-db.com/exploits/43874/Refpacketstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.htmlRefwww.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-uploadRefpsirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006Refwww.exploit-db.com/exploits/43874/CISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11317

How CyberStrike helps

Frequently asked questions

What is CVE-2017-11317?

CVE-2017-11317 is a critical-severity vulnerability. It was published on August 23, 2017 and has a CVSS 3.1 base score of 9.8 (CRITICAL). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2017-11317?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-11317?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-11317?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-11317 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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