CVE-2019-18935
CVE-2019-18935
In short
Progress Telerik UI for ASP.NET AJAX has a flaw in its file upload feature that allows attackers to run malicious code on a server if they know the encryption keys. This happens because the application unsafely processes untrusted data.
Technical detail
CVE-2019-18935 is a .NET deserialization vulnerability (CWE-502) in RadAsyncUpload that permits remote code execution when encryption keys are compromised via CVE-2017-11317, CVE-2017-11357, or equivalent means. The attack vector requires network access and knowledge of encryption keys; exploitation results in arbitrary code execution with application privileges.
Summary generated and translated by AI from the official 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.)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · n/apublic PoCs found — 20
githubgithub.com/noperator/CVE-2019-18935★ 370githubgithub.com/bao7uo/RAU_crypto★ 181githubgithub.com/murataydemir/CVE-2019-18935★ 16githubgithub.com/dust-life/CVE-2019-18935-memShell★ 13githubgithub.com/ThanHuuTuan/Telerik_CVE-2019-18935★ 13githubgithub.com/ekkoo-z/CVE-2019-18935-bypasswaf★ 8githubgithub.com/random-robbie/CVE-2019-18935★ 5githubgithub.com/ThanHuuTuan/CVE_2019_18935★ 2githubgithub.com/quyt0/CVE-2019-18935-exploit-study★ 1githubgithub.com/KasunPriyashan/Telerik-UI-ASP.NET-AJAX-Exploitation★ 1githubgithub.com/appliedi/Telerik_CVE-2019-18935★ 0githubgithub.com/alanbarret/CVE-2019-18935★ 0githubgithub.com/becrevex/Telerik_CVE-2019-18935★ 0githubgithub.com/menashe12346/CVE-2019-18935★ 0githubgithub.com/0xAgun/CVE-2019-18935-checker★ 0githubgithub.com/clarkvoss/telerik★ 0githubgithub.com/0xsharz/telerik-scanner-CVE-2019-18935★ 0exploitdbwww.exploit-db.com/exploits/47793unverifiedcve_referencepacketstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.htmlunverifiedcve_referencepacketstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.htmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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http://packetstormsecurity.com/files/155720/Telerik-UI-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/159653/Telerik-UI-ASP.NET-AJAX-RadAsyncUpload-Deserialization.htmlhttps://codewhitesec.blogspot.com/2019/02/telerik-revisited.htmlhttps://github.com/bao7uo/RAU_cryptohttps://github.com/noperator/CVE-2019-18935https://know.bishopfox.com/research/cve-2019-18935-remote-code-execution-in-telerik-uihttps://www.bleepingcomputer.com/news/security/us-federal-agency-hacked-using-old-telerik-bug-to-steal-data/https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-18935https://www.telerik.com/support/kb/aspnet-ajax/details/allows-javascriptserializer-deserializationhttps://www.telerik.com/support/whats-new/aspnet-ajax/release-history/ui-for-asp-net-ajax-r1-2020-%28version-2020-1-114%29https://www.telerik.com/support/whats-new/release-history