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mscveMicrosoftMS:CVE-2018-0890
HistoryApr 10, 2018 - 7:00 a.m.

Active Directory Security Feature Bypass Vulnerability

2018-04-1007:00:00
Microsoft
msrc.microsoft.com
4

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:N/I:N/A:P

0.005 Low

EPSS

Percentile

76.3%

A security feature bypass vulnerability exists when Active Directory incorrectly applies Network Isolation settings. To exploit this vulnerability, an attacker could run a specially crafted application.

An attacker who successfully exploited this vulnerability could bypass firewall policies applied to Modern Applications.

This update corrects the security feature’s behavior by correcting how Active Directory manages Network Isolation policies applied to Modern Applications.

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

3.5 Low

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:S/C:N/I:N/A:P

0.005 Low

EPSS

Percentile

76.3%

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