{"id":"CVE-2017-9248","aliases":["EUVD-2017-18184","GHSA-mfqq-q5rf-3hvq"],"status":"published","title":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity...","description":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.75098,"percentile":0.99513,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-522"],"published":"2017-07-03T19:00:00Z","modified":"2026-06-17T01:27:44Z","kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2021-11-03"},{"source":"kev","since":"2021-11-03"}],"exploits":[{"source":"pocgithub","id":"bao7uo/dp_crypto","title":"bao7uo/dp_crypto","date":"2018-01-16","url":"https://github.com/bao7uo/dp_crypto"},{"source":"exploitdb","id":"EDB-43873","title":"Telerik UI for ASP.NET AJAX 2012.3.1308 \u003c 2017.1.118 - Encryption Keys Disclosure","type":"webapps","platform":"aspx","date":"2018-01-24","url":"https://www.exploit-db.com/exploits/43873"},{"source":"pocgithub","id":"capt-meelo/Telewreck","title":"capt-meelo/Telewreck","date":"2018-08-03","url":"https://github.com/capt-meelo/Telewreck"},{"source":"pocgithub","id":"ictnamanh/CVE-2017-9248","title":"ictnamanh/CVE-2017-9248","date":"2019-10-23","url":"https://github.com/ictnamanh/CVE-2017-9248"},{"source":"pocgithub","id":"oldboysonnt/dp","title":"oldboysonnt/dp","date":"2021-05-24","url":"https://github.com/oldboysonnt/dp"},{"source":"pocgithub","id":"blacklanternsecurity/dp_cryptomg","title":"blacklanternsecurity/dp_cryptomg","date":"2022-10-04","url":"https://github.com/blacklanternsecurity/dp_cryptomg"},{"source":"pocgithub","id":"cehamod/UI_CVE-2017-9248","title":"cehamod/UI_CVE-2017-9248","date":"2023-06-05","url":"https://github.com/cehamod/UI_CVE-2017-9248"},{"source":"pocgithub","id":"0xsharz/telerik-scanner-cve-2017-9248","title":"0xsharz/telerik-scanner-cve-2017-9248","date":"2025-05-28","url":"https://github.com/0xsharz/telerik-scanner-cve-2017-9248"}],"products":[{"vendor":"progress","product":"asp.net ajax and sitefinity"},{"vendor":"progress","product":"sitefinity"},{"vendor":"telerik","product":"ui_for_asp.net_ajax"}],"references":[{"url":"http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/43873/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/99965","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9248","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-9248"},{"url":"https://www.exploit-db.com/exploits/43873"},{"url":"https://github.com/advisories/GHSA-mfqq-q5rf-3hvq"}],"sources":{"cve":[{"id":"CVE-2017-9248","description":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.","status":"published","published":"2017-07-03T19:00:00Z","modified":"2025-10-21T23:55:39.141Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:33:13.96587Z"}],"euvd":[{"id":"EUVD-2017-18184","description":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.","status":"published","published":"2017-07-03T19:00:00Z","modified":"2025-10-21T23:55:39Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2021-11-03","updated_at":"2026-11-02T20:31:23.427989Z"}],"ghsa":[{"id":"GHSA-mfqq-q5rf-3hvq","title":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity...","description":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.","status":"published","published":"2022-05-13T01:47:51Z","modified":"2025-10-22T00:32:27Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:04:05.344883Z"}],"kev":[{"id":"CVE-2017-9248","title":"Progress Telerik UI for ASP.NET AJAX and Sitefinity Cryptographic Weakness Vulnerability","description":"Progress Telerik UI for ASP.NET AJAX and Sitefinity have a cryptographic weakness in Telerik.Web.UI.dll that can be exploited to disclose encryption keys (Telerik.Web.UI.DialogParametersEncryptionKey and/or the MachineKey), perform cross-site-scripting (XSS) attacks, compromise the ASP.NET ViewState, and/or upload and download files.","cwes":["CWE-522"],"kev":{"date_added":"2021-11-03","due_date":"2022-05-03","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:17.050017Z"}],"nvd":[{"id":"CVE-2017-9248","description":"Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.","status":"published","published":"2017-07-03T19:29:00.27Z","modified":"2026-06-17T01:27:44.86Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:03:51.893212Z"}]}}