9.8Critical
KEV
CVE-2017-9248Progress Telerik UI for ASP.NET AJAX and Sitefinity Cryptographic Weakness Vulnerability
Known exploited — Progress Telerik UI for ASP.NET AJAX and Sitefinity Cryptographic Weakness Vulnerability
CISA confirmed this vulnerability is used in real attacks on 03.11.2021. Remediation deadline for US federal agencies: 03.05.2022.
Required action: Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/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.
Weakness (CWE):
CWE-522
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| progress | sitefinity | < 10.0.6412.0 | |
| telerik | ui for asp.net ajax | ≤ 2017.2.503 |
References and patches
- http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness MitigationVendor Advisory
- 43873 exploitExploitThird Party AdvisoryVDB Entry
- http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity Vendor Advisory
- 99965 vdb-entryBroken LinkThird Party AdvisoryVDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9248 US Government Resource
CPE matches (NVD) (2)
cpe:2.3:a:progress:sitefinity:*:*:*:*:*:*:*:*< 10.0.6412.0cpe:2.3:a:telerik:ui_for_asp.net_ajax:*:*:*:*:*:*:*:*≤ 2017.2.503