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mscveMicrosoftMS:CVE-2017-0248
HistoryMay 09, 2017 - 7:00 a.m.

.NET Security Feature Bypass Vulnerability

2017-05-0907:00:00
Microsoft
msrc.microsoft.com
15

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

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

0.002 Low

EPSS

Percentile

58.5%

JSON

A security feature bypass vulnerability exists when Microsoft .NET Framework (and .NET Core) components do not completely validate certificates.

An attacker could present a certificate that is marked invalid for a specific use, but the component uses it for that purpose. This action disregards the Enhanced Key Usage taggings.

The security update addresses the vulnerability by helping to ensure that .NET Framework (and .NET Core) components completely validate certificates.

Related

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Security Only update for the .NET Framework 2.0 Service Pack 2, 4.5.2, and 4.6 updates for Windows Server 2008 Service Pack 2: May 9, 2017
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Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc and Microsoft.AspNetCore.Mvc.Core
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2017-05-09 00:00:00
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KLA11011 Security Bypass vulnerability in Microsoft .NET Framework
2017-05-09 00:00:00
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2018-10-16 19:58:52
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2017-05-12 16:47:57

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

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

0.002 Low

EPSS

Percentile

58.5%

JSON
Related for MS:CVE-2017-0248
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