Detections
Analytics

Telerik UI for ASP.NET AJAX RadAsyncUpload .NET Deserialization Vulnerability

critical Web App Scanning Plugin ID 112521

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Synopsis

Telerik UI for ASP.NET AJAX RadAsyncUpload .NET Deserialization Vulnerability

Description

According to its self-reported version number, the version of Telerik UI for ASP.NET AJAX prior to 2019.3.1023 contains a .NET deserialization vulnerability in the RadAsyncUpload function. This is exploitable when the encryption keys are known due to the presence of CVE-2017-11317 or CVE-2017-11357, or other means. Exploitation can result in remote code execution. As of 2020.1.114, a default setting prevents the exploit. In 2019.3.1023, but not earlier versions, a non-default setting can prevent exploitation.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Telerik UI for ASP.NET AJAX version R3 2019 SP1 (2019.3.1023) or later, and enable the type whitelisting feature of RadAsyncUpload.

See Also

https://docs.telerik.com/devtools/aspnet-ajax/controls/asyncupload/security

https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization

Plugin Details

Severity: Critical

ID: 112521

Type: remote

Published: 7/1/2020

Updated: 3/14/2023

Scan Template: basic, full, pci, scan

Risk Information

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-18935

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Score Source: CVE-2019-18935

Vulnerability Information

CPE: cpe:2.3:a:telerik:ui_for_asp.net_ajax:*:*:*:*:*:*:*:*

Exploit Available: true

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2019

Vulnerability Publication Date: 12/11/2019

CISA Known Exploited Vulnerability Due Dates: 5/3/2022

Reference Information

CVE: CVE-2019-18935