Microsoft Azure AD Connect prior 1.1.553.0 Password Writeback access control

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Azure AD Connect. Affected by this vulnerability is an unknown functionality of the component Password Writeback. Such manipulation leads to access control. This vulnerability is listed as CVE-2017-8613. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Microsoft Azure AD Connect (Cloud Software) and classified as critical. Affected by this issue is an unknown part of the component Password Writeback. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Azure AD Connect Password writeback, if misconfigured during enablement, allows an attacker to reset passwords and gain unauthorized access to arbitrary on-premises AD privileged user accounts aka "Azure AD Connect Elevation of Privilege Vulnerability."

The bug was discovered 06/27/2017. The weakness was presented 06/29/2017 with Microsoft as confirmed bulletin (Technet). The advisory is available at technet.microsoft.com. This vulnerability is handled as CVE-2017-8613 since 05/03/2017. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 101113 (Microsoft Security Advisory 4033453: Vulnerability in Azure AD Connect Could Allow Elevation of Privilege), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370452 (Microsoft Azure AD Connect Elevation of Privilege Vulnerability).

Upgrading to version 1.1.553.0 eliminates this vulnerability. The upgrade is hosted for download at technet.microsoft.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (101113) and SecurityFocus (BID 99294†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101113
Nessus Name: Microsoft Security Advisory 4033453: Vulnerability in Azure AD Connect Could Allow Elevation of Privilege
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 801342
OpenVAS Name: Microsoft Azure AD Connect Privilege Elevation Vulnerability (4033453)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Azure AD Connect 1.1.553.0
Patch: technet.microsoft.com

Timelineinfo

05/03/2017 🔍
06/27/2017 +55 days 🔍
06/27/2017 +0 days 🔍
06/29/2017 +2 days 🔍
06/29/2017 +0 days 🔍
06/29/2017 +0 days 🔍
06/29/2017 +0 days 🔍
06/30/2017 +1 days 🔍
12/30/2020 +1279 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: technet.microsoft.com
Researcher: Microsoft
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8613 (🔍)
GCVE (CVE): GCVE-0-2017-8613
GCVE (VulDB): GCVE-100-102938
SecurityFocus: 99294 - Microsoft Azure Active Directory Connect CVE-2017-8613 Remote Privilege Escalation Vulnerability

Entryinfo

Created: 06/30/2017 09:10
Updated: 12/30/2020 09:56
Changes: 06/30/2017 09:10 (77), 10/21/2019 12:19 (5), 12/30/2020 09:56 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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