PT-2017-3938 · Telerik · Telerik Ui For Asp.Net Ajax

Paul Taylor · Published 2017-08-22 · Updated 2025-10-07 · CVE-2017-11317

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Telerik UI for ASP.NET AJAX versions prior to R1 2017 Telerik UI for ASP.NET AJAX R2 versions prior to R2 2017 SP2

Description The issue is related to weak encryption in RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code. This can be exploited by a remote attacker to upload files or execute code.

Recommendations For versions prior to R1 2017, update to R1 2017 or later to resolve the issue. For R2 versions prior to R2 2017 SP2, update to R2 2017 SP2 or later to resolve the issue. As a temporary workaround, consider disabling the RadAsyncUpload feature until a patch is available.

Exploit

Fix

Inadequate Encryption Strength

Weakness Enumeration

CWE-326

Related Identifiers

BDU:2020-02117

CVE-2017-11317

Affected Products

Telerik Ui For Asp.Net Ajax

References · 25

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/telerik_rau_deserialization.rb · Exploit
• 🔥 https://github.com/bao7uo/RAU_crypto · Exploit
• 🔥 http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html · Exploit
• 🔥 https://exploit-db.com/exploits/43874 · Exploit
• http://telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/unrestricted-file-upload · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-11317 · Security Note
• https://osv.dev/vulnerability/CVE-2017-11317 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02117 · Security Note
• https://xakep.ru/2020/04/24/web-shells · Note
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0006 · Note
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11317 · Note
• https://t.me/cvenotify/109984 · Telegram Post
• https://t.me/cvenotify/87396 · Telegram Post
• https://t.me/aptreports/13984 · Telegram Post
• https://t.me/cvenotify/24771 · Telegram Post