CVE-2019-18935
Last modified
CVE-2019-18935 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Progress Telerik UI for ASP.NET AJAX through 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.74% chance of exploitation in the next 30 days.
Description
Progress Telerik UI for ASP.NET AJAX through 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.)
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Telerik | Ui For Asp.Net Ajax | >= 2011.1.315, <= 2020.1.114 |
References
- http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/bao7uo/RAU_cryptoExploit, Third Party Advisory
- https://github.com/noperator/CVE-2019-18935Exploit, Third Party Advisory
- https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-uiExploit, Third Party Advisory
- https://www.telerik.com/support/whats-new/release-historyRelease Notes, Vendor Advisory
- http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/bao7uo/RAU_cryptoExploit, Third Party Advisory
- https://github.com/noperator/CVE-2019-18935Exploit, Third Party Advisory
- https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-uiExploit, Third Party Advisory
- https://www.telerik.com/support/whats-new/release-historyRelease Notes, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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