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
Published Jul 3, 2017 ·Due May 3, 2022
9.8
CRITICALCVSS 3.1
EPSS 75.10%
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.
Affected products
No data.
- < 10.0.6412.0
- ≤ 2017.2.503
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
Date Added
Nov 3, 2021
Patch Due
May 3, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Feb 7, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 75.10% (0.75098) | 99.50th | v5 (v2026.06.15) |
| Jun 15, 2026 | 75.10% (0.75098) | 99.45th | v5 (v2026.06.15) |
| May 11, 2026 | 89.44% (0.89439) | 99.56th | v4 (v2025.03.14) |
| Nov 21, 2025 | 87.80% (0.87802) | 99.43th | v4 (v2025.03.14) |
| Nov 18, 2025 | 93.77% (0.93772) | 99.91th | v4 (v2025.03.14) |
| Oct 18, 2025 | 86.87% (0.86868) | 99.39th | v4 (v2025.03.14) |
| Jul 2, 2025 | 88.17% (0.88166) | 99.46th | v4 (v2025.03.14) |
| May 9, 2025 | 85.30% (0.85305) | 99.30th | v4 (v2025.03.14) |
| Mar 25, 2025 | 88.77% (0.88766) | 99.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 89.87% (0.89874) | 99.56th | v4 (v2025.03.14) |
| Dec 17, 2024 | 9.63% (0.09634) | 94.79th | v3 (v2023.03.01) |
| Dec 13, 2024 | 22.78% (0.22784) | 96.71th | v3 (v2023.03.01) |
| Jul 26, 2024 | 24.98% (0.24982) | 96.72th | v3 (v2023.03.01) |
| Feb 7, 2024 | 17.89% (0.17894) | 95.70th | v3 (v2023.03.01) |
| Nov 18, 2023 | 7.92% (0.07915) | 93.57th | v3 (v2023.03.01) |
| Oct 7, 2023 | 7.21% (0.07205) | 93.23th | v3 (v2023.03.01) |
| Sep 22, 2023 | 8.26% (0.08262) | 93.60th | v3 (v2023.03.01) |
| Jul 19, 2023 | 18.57% (0.18573) | 95.53th | v3 (v2023.03.01) |
| Jul 8, 2023 | 19.12% (0.19121) | 95.58th | v3 (v2023.03.01) |
| Mar 19, 2023 | 58.69% (0.58692) | 97.15th | v3 (v2023.03.01) |
| Mar 7, 2023 | 63.76% (0.63762) | 97.25th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.76% (0.10764) | 94.66th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.76% (0.10764) | 94.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.76% (0.10764) | 87.76th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.93% (0.05934) | 81.33th | v1 |
| Jan 6, 2022 | 5.93% (0.05934) | 81.13th | v1 |
| Sep 1, 2021 | 5.93% (0.05934) | 89.50th | v1 |
| Apr 14, 2021 | 5.93% (0.05934) | 0.00th | v1 |
References (5)
- http://www.securityfocus.com/bid/99965 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity x_refsource_CONFIRMVendor Advisory
- http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness x_refsource_CONFIRMMitigationVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9248 government-resourceUS Government Resource
- https://www.exploit-db.com/exploits/43873/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/99965 | vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry | |
| http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity | x_refsource_CONFIRMVendor Advisory | |
| http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness | x_refsource_CONFIRMMitigationVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9248 | government-resourceUS Government Resource | |
| https://www.exploit-db.com/exploits/43873/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.