#VU47861 Deserialization of Untrusted Data in UI for ASP.NET AJAX - CVE-2019-18935
Published: December 11, 2019 / Updated: October 9, 2021
Vulnerability identifier: #VU47861
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2019-18935
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
UI for ASP.NET AJAX
UI for ASP.NET AJAX
Software vendor:
Progress Telerik
Progress Telerik
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in the "RadAsyncUpload" function. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.
External links
- http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.html
- https://codewhitesec.blogspot.com/2019/02/telerik-revisited.html
- https://github.com/bao7uo/RAU_crypto
- https://github.com/noperator/CVE-2019-18935
- https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-ui
- https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserialization
- https://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-(version-2020-1-114)
- https://www.telerik.com/support/whats-new/release-history