CVE-2017-0247
Summary
| CVE | CVE-2017-0247 |
|---|---|
| State | PUBLISHED |
| Assigner | microsoft |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-05-12 14:29:03 UTC |
| Updated | 2025-04-20 01:37:25 UTC |
| Description | A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range. |
Risk And Classification
Primary CVSS: v3.0 7.5 HIGH from [email protected]
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Problem Types: CWE-20 | Denial of Service
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| 2.0 | [email protected] | Primary | 5 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
CVSS v3.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
NoneCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
NoneAV:N/AC:L/Au:N/C:N/I:P/A:N
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Microsoft Corporation | ASP.NET Core | affected ASP.NET Core | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Microsoft Security Advisory 4021279: Vulnerabilities in .NET Core, ASP.NET Core Could Allow Elevation of Privilege · Issue #239 · aspnet/Announcements · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Technical Description, Third Party Advisory |
| Página no encontrada | Sidertia Solutions | af854a3a-2127-422b-91ae-364da2661108 | www.sidertia.com | Exploit, Third Party Advisory |
| Microsoft Security Advisory 4021279 | af854a3a-2127-422b-91ae-364da2661108 | technet.microsoft.com | Patch, Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 982023 Dotnet (nuget) Security Update for System.Net.Http.WinHttpHandler (GHSA-6xh7-4v2w-36q6)