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CVE-2017-0247

UNKNOWN
Published 2017-05-12T14:00:00
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No CVSS data available

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Microsoft Corporation

ASP.NET Core

Affected Versions:

ASP.NET Core

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

ASP.NET Core fails to properly validate web requests

GHSA-6xh7-4v2w-36q6

Advisory Details

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.

Affected Packages

NuGet Microsoft.AspNetCore.Mvc
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Core
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Core
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet System.Net.Http
ECOSYSTEM: ≥4.1.1 <4.1.2
NuGet System.Net.Http
ECOSYSTEM: ≥4.3.1 <4.3.2
NuGet System.Text.Encodings.Web
ECOSYSTEM: ≥4.0.0 <4.0.1
NuGet System.Text.Encodings.Web
ECOSYSTEM: ≥4.3.0 <4.3.1
NuGet System.Net.Http.WinHttpHandler
ECOSYSTEM: ≥4.0.0 <4.0.1
NuGet System.Net.Http.WinHttpHandler
ECOSYSTEM: ≥4.3.0 <4.5.4
NuGet System.Net.Security
ECOSYSTEM: ≥4.0.0 <4.0.1
NuGet System.Net.Security
ECOSYSTEM: ≥4.3.0 <4.3.1
NuGet System.Net.WebSockets.Client
ECOSYSTEM: ≥4.0.0 <4.0.1
NuGet System.Net.WebSockets.Client
ECOSYSTEM: ≥4.3.0 <4.3.1
NuGet Microsoft.AspNetCore.Mvc.Abstractions
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Abstractions
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.ApiExplorer
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.ApiExplorer
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Cors
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Cors
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.DataAnnotations
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.DataAnnotations
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Formatters.Json
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Formatters.Json
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Formatters.Xml
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Formatters.Xml
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Localization
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Localization
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Razor.Host
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Razor.Host
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.Razor
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.Razor
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.TagHelpers
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.TagHelpers
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.ViewFeatures
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.ViewFeatures
ECOSYSTEM: ≥1.1.0 <1.1.3
NuGet Microsoft.AspNetCore.Mvc.WebApiCompatShim
ECOSYSTEM: ≥1.0.0 <1.0.4
NuGet Microsoft.AspNetCore.Mvc.WebApiCompatShim
ECOSYSTEM: ≥1.1.0 <1.1.3

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2017-0247
WEB https://github.com/aspnet/Announcements/issues/239
ADVISORY https://github.com/advisories/GHSA-6xh7-4v2w-36q6
WEB https://technet.microsoft.com/en-us/library/security/4021279.aspx
WEB https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS

Advisory provided by GitHub Security Advisory Database. Published: October 16, 2018, Modified: April 26, 2022

References

https://technet.microsoft.com/en-us/library/security/4021279.aspx
https://github.com/aspnet/Announcements/issues/239
https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS
Published: 2017-05-12T14:00:00
Last Modified: 2024-08-05T12:55:19.171Z
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