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cve[email protected]CVE-2017-0247
HistoryMay 12, 2017 - 2:29 p.m.

CVE-2017-0247

2017-05-1214:29:00
CWE-20
[email protected]
web.nvd.nist.gov
61
cve-2017-0247
denial of service
asp.net core
web request validation
vulnerability

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

7.3 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

71.6%

JSON

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.

CPENameOperatorVersion
microsoft:microsoft.aspnetcore.mvc.formatters.jsonmicrosoft microsoft.aspnetcore.mvc.formatters.jsoneq1.1.0
microsoft:microsoft.aspnetcore.mvc.corsmicrosoft microsoft.aspnetcore.mvc.corseq1.1.0
microsoft:microsoft.aspnetcore.mvc.apiexplorermicrosoft microsoft.aspnetcore.mvc.apiexplorereq1.0.2
microsoft:microsoft.aspnetcore.mvc.localizationmicrosoft microsoft.aspnetcore.mvc.localizationeq1.1.1
microsoft:microsoft.aspnetcore.mvc.formatters.jsonmicrosoft microsoft.aspnetcore.mvc.formatters.jsoneq1.0.3
microsoft:microsoft.aspnetcore.mvc.taghelpersmicrosoft microsoft.aspnetcore.mvc.taghelperseq1.0.3
microsoft:microsoft.aspnetcore.mvc.abstractionsmicrosoft microsoft.aspnetcore.mvc.abstractionseq1.1.1
microsoft:microsoft.aspnetcore.mvc.corsmicrosoft microsoft.aspnetcore.mvc.corseq1.0.2
microsoft:microsoft.aspnetcore.mvc.formatters.xmlmicrosoft microsoft.aspnetcore.mvc.formatters.xmleq1.1.1
microsoft:microsoft.aspnetcore.mvc.webapicompatshimmicrosoft microsoft.aspnetcore.mvc.webapicompatshimeq1.0.3
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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

7.3 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

71.6%

JSON
Related for CVE-2017-0247
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