CVE-2017-0256
UnknownEPSS 3.54%
Last modified
CVE-2017-0256 is a vulnerability of currently unknown severity. A spoofing vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.. EPSS estimates a 3.54% chance of exploitation in the next 30 days.
Description
A spoofing vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Asp.Net Model View Controller | 1.0.0 |
| Microsoft | Asp.Net Model View Controller | 1.0.1 |
| Microsoft | Asp.Net Model View Controller | 1.0.2 |
| Microsoft | Asp.Net Model View Controller | 1.0.3 |
| Microsoft | Asp.Net Model View Controller | 1.1.0 |
| Microsoft | Asp.Net Model View Controller | 1.1.1 |
| Microsoft | Asp.Net Model View Controller | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.0.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.0.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.0.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.0.3 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.1.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Abstractions | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.0.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.0.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.0.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.0.3 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.1.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Apiexplorer | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.0.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.0.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.0.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.0.3 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.1.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Cors | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.0.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.0.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.0.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.0.3 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.1.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Dataannotations | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.0.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.0.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.0.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.0.3 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.1.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Json | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.0.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.0.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.0.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.0.3 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.1.0 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.1.1 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Formatters.Xml | 1.1.2 |
| Microsoft | Microsoft.Aspnetcore.Mvc.Localization | 1.0.0 |
Showing 50 of 101 affected configurations. See NVD for the full list.
References
- https://github.com/aspnet/Announcements/issues/239Technical Description, Third Party Advisory
- https://github.com/aspnet/Announcements/issues/239Technical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-0256?
A spoofing vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.
How severe is CVE-2017-0256?
Severity scoring for CVE-2017-0256 is pending analysis. The EPSS model estimates a 3.54% probability of exploitation in the next 30 days.
How do I fix CVE-2017-0256?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2017-0256?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST