CVE-2017-11357
KEVRansomware UseTelerik UI for ASP.NET AJAX Insecure Direct Object Reference Vulnerability
Description
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.
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HPublishedAug 23, 2017
Last modifiedAug 14, 2026
Added to KEVJan 26, 2023
Remediation dueFeb 16, 2023
References
- telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/insecure-direct-object-referenceMitigationVendor Advisory
- exploit-db.com/exploits/43874/ExploitThird Party Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11357US Government Resource
0 recent articles mention this CVE
97
Risk assessment · Critical
Actively exploited and used by ransomware crews. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1349 days
- Ransomware
- Used in known ransomware campaigns
- CVSS
- 9.8 CRITICAL
- EPSS (30-day exploit probability)
- 77.7% · top 1% of all CVEs
- Weakness
- CWE-434
- Attack vector
- Network, remotely reachable
- Preconditions
- No privileges and no user interaction
Recommended actions
- 1.Apply updates per vendor instructions.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
- 5.Verify offline/immutable backups and segment the affected systems. This flaw is used for ransomware initial access.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.