CVE-2017-11317 on CISA KEV

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.

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.exploit-db.com — https://www.exploit-db.com/exploits/43874/
• www.telerik.com — http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestr…
• psirt.global.sonicwall.com — https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006
• packetstormsecurity.com — http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUplo…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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