CVE-2017-9248
Confirmed PUBLISHEDTelerik.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...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Jul 03, 2017
- Exploitation Reported
- Nov 03, 2021
- CVSS
- 9.8 Critical
- EPSS
- 75.1%
CVE References
- 43873 exploit-db.com · Exploit https://www.exploit-db.com/exploits/43873/
- 99965 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/99965
- telerik.com/support/kb/aspnet-ajax/details/cryptographic... telerik.com · CVE Record http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-w...
- telerik.com/blogs/security-alert-for-telerik-ui-for-asp.... telerik.com · CVE Record http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.ne...
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2021-11-03 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/A:P
Exploitation Status
Exploited in the wild
Recorded 2021-11-03 00:00:00 UTC · CISA
Proof of concept available
Recorded 2019-10-23 13:57:11 UTC · GitHub
Weaknesses (CWE)
-
Insufficiently Protected Credentials
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2024-07-17 14:49:07 UTC · 0 stars
github · Created 2023-06-05 00:48:24 UTC · 0 stars
Base64-based encryption oracle exploit for CVE-2017-9248 (Telerik UI for ASP.NET AJAX dialog handler)
github · Created 2019-10-23 13:57:11 UTC · 0 stars
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
13:57 UTC almost 7 years ago13:57 UTC · almost 7 years ago
Public PoC available
Public proof-of-concept code published
-
19:00 UTC about 9 years ago19:00 UTC · about 9 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC about 9 years ago00:00 UTC · about 9 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2017-9248
{
"cve_id": "CVE-2017-9248",
"title": "Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1...",
"affected_vendor": "Progress",
"affected_product": "Telerik UI for ASP.NET AJAX",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": 0.75098,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}