ghsa-6xh7-4v2w-36q6
Vulnerability from github
Published
2018-10-16 19:58
Modified
2022-04-26 19:07
Severity ?
Summary
ASP.NET Core fails to properly validate web requests
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": [
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.0.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Core"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.0.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Core"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
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}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "System.Net.Http"
},
"ranges": [
{
"events": [
{
"introduced": "4.1.1"
},
{
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}
],
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}
],
"versions": [
"4.1.1"
]
},
{
"package": {
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"name": "System.Net.Http"
},
"ranges": [
{
"events": [
{
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},
{
"fixed": "4.3.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.3.1"
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "System.Text.Encodings.Web"
},
"ranges": [
{
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{
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},
{
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}
],
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}
],
"versions": [
"4.0.0"
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "System.Text.Encodings.Web"
},
"ranges": [
{
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{
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{
"package": {
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"name": "System.Net.Http.WinHttpHandler"
},
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"versions": [
"4.0.0"
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},
{
"package": {
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{
"package": {
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]
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{
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{
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],
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],
"versions": [
"4.3.0"
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "System.Net.WebSockets.Client"
},
"ranges": [
{
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{
"introduced": "4.0.0"
},
{
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}
],
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}
],
"versions": [
"4.0.0"
]
},
{
"package": {
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"name": "System.Net.WebSockets.Client"
},
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{
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{
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{
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],
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}
],
"versions": [
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Abstractions"
},
"ranges": [
{
"events": [
{
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{
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],
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]
},
{
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},
"ranges": [
{
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{
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],
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]
},
{
"package": {
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},
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]
},
{
"package": {
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},
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]
},
{
"package": {
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"name": "Microsoft.AspNetCore.Mvc.Cors"
},
"ranges": [
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{
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],
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Cors"
},
"ranges": [
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.DataAnnotations"
},
"ranges": [
{
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],
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]
},
{
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"name": "Microsoft.AspNetCore.Mvc.DataAnnotations"
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"ranges": [
{
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],
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}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Formatters.Json"
},
"ranges": [
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{
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"name": "Microsoft.AspNetCore.Mvc.Formatters.Json"
},
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{
"events": [
{
"introduced": "1.1.0"
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{
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],
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}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Formatters.Xml"
},
"ranges": [
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"events": [
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"introduced": "1.0.0"
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}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Formatters.Xml"
},
"ranges": [
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Localization"
},
"ranges": [
{
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{
"introduced": "1.0.0"
},
{
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]
},
{
"package": {
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"name": "Microsoft.AspNetCore.Mvc.Localization"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.Razor.Host"
},
"ranges": [
{
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{
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{
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},
{
"package": {
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"name": "Microsoft.AspNetCore.Mvc.TagHelpers"
},
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]
},
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"name": "Microsoft.AspNetCore.Mvc.TagHelpers"
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}
],
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}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.ViewFeatures"
},
"ranges": [
{
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{
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],
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},
{
"package": {
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"name": "Microsoft.AspNetCore.Mvc.ViewFeatures"
},
"ranges": [
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{
"introduced": "1.1.0"
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{
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}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.WebApiCompatShim"
},
"ranges": [
{
"events": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.0.4"
}
],
"type": "ECOSYSTEM"
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]
},
{
"package": {
"ecosystem": "NuGet",
"name": "Microsoft.AspNetCore.Mvc.WebApiCompatShim"
},
"ranges": [
{
"events": [
{
"introduced": "1.1.0"
},
{
"fixed": "1.1.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-0247"
],
"database_specific": {
"cwe_ids": [
"CWE-20"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:20:41Z",
"nvd_published_at": "2017-05-12T14:29:00Z",
"severity": "HIGH"
},
"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.",
"id": "GHSA-6xh7-4v2w-36q6",
"modified": "2022-04-26T19:07:08Z",
"published": "2018-10-16T19:58:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-0247"
},
{
"type": "WEB",
"url": "https://github.com/aspnet/Announcements/issues/239"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-6xh7-4v2w-36q6"
},
{
"type": "WEB",
"url": "https://technet.microsoft.com/en-us/library/security/4021279.aspx"
},
{
"type": "WEB",
"url": "https://www.sidertia.com/Home/Community/Blog/2017/05/18/ASPNET-Core-Unicode-Non-Char-Encoding-DoS"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "ASP.NET Core fails to properly validate web requests"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.