Microsoft Security Advisory 4033453: Vulnerability in Azure AD Connect Could Allow Elevation of Privilege

high Nessus Plugin ID 101113

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Synopsis

An application installed on the remote Windows host is affected by an elevation of privilege vulnerability.

Description

The version of Azure Active Directory (AD) Connect installed on the remote Windows host is prior to 1.1.553.0, and the password writeback setting is enabled. It is, therefore, affected by an elevation of privilege vulnerability due to improper permissions being granted when enabling the password writeback setting. An authenticated, remote attacker can exploit this to reset users' passwords and gain access to arbitrary on-premises AD privileged user accounts.

Note that Nessus did not verify if the reset password permission was granted to on-premises AD user accounts.

Solution

Upgrade to Azure AD Connect version 1.1.553.0 or later. Alternatively, apply the mitigation steps listed in the vendor advisory.

Plugin Details

Severity: High

ID: 101113

File Name: smb_kb4033453.nasl

Version: 1.6

Type: local

Agent: windows

Family: Windows

Published: 6/29/2017

Updated: 11/13/2019

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2017-8613

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: x-cpe:/a:microsoft:azure_active_directory_connect

Exploit Ease: No known exploits are available

Patch Publication Date: 6/27/2017

Vulnerability Publication Date: 6/27/2017

Reference Information

CVE: CVE-2017-8613

BID: 99294

Detections

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