CVE-2017-11357
Confirmed PUBLISHEDProgress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.
- CVE Published
- Aug 23, 2017
- Exploitation Reported
- Jan 26, 2023
- CVSS
- 9.8 Critical
- EPSS
- 75.7%
CVE References
- 43874 exploit-db.com · Exploit https://www.exploit-db.com/exploits/43874/
- telerik.com/support/kb/aspnet-ajax/upload-%28async%29/de... telerik.com · CVE Record http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/deta...
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 | 2023-01-26 00:00 UTC |
Scanner Artifacts
Scanner and exploit-framework references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nessus | https://www.tenable.com/plugins/nessus/112522 | Jun 02, 2025 |
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 2023-01-26 00:00:00 UTC · CISA
Used in malware
Recorded 2023-01-26 00:00:00 UTC · CISA
Weaknesses (CWE)
-
Unrestricted Upload of File with Dangerous Type
Scanner Integrations
Nuclei, Metasploit, and other scanner references for this CVE are listed on the Detection tab.
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
09:27 UTC about 1 year ago09:27 UTC · about 1 year ago
Nessus plugin available
Scanner coverage available
-
00:00 UTC over 3 years ago00:00 UTC · over 3 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
00:00 UTC over 3 years ago00:00 UTC · over 3 years ago
First public exploitation report
Exploit observed in malware
-
17:00 UTC almost 9 years ago17:00 UTC · almost 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-2017-11357
{
"cve_id": "CVE-2017-11357",
"title": "Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly res...",
"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": 0.75709,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}