Microsoft Exchange Server 2010/2013/2016/2019 access control

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Exchange Server 2010/2013/2016/2019. It has been rated as critical. The impacted element is an unknown function. The manipulation leads to access control. This vulnerability is traded as CVE-2018-8581. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Exchange Server 2010/2013/2016/2019 (Groupware Software). This issue affects an unknown function. 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. The summary by CVE is:

An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

The bug was discovered 11/13/2018. The weakness was shared 11/13/2018 with Zero Day Initiative as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2018-8581 since 03/14/2018. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but an exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue. The advisory points out:

An elevation of privilege vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could attempt to impersonate any other user of the Exchange server.

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 118978 (Microsoft Exchange Server Elevation of Privilege Vulnerability (November 2018)), 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 53018 (Microsoft Exchange Server Elevation of Privilege Vulnerability (MS Exchange 2010, 2013, 2016)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 03/03/2022 with a due date of 03/17/2022:

Apply updates per vendor instructions.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (118978) and SecurityFocus (BID 105837†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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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: 7.4
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

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Nessus ID: 118978
Nessus Name: Microsoft Exchange Server Elevation of Privilege Vulnerability (November 2018)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

03/14/2018 🔍
11/13/2018 +244 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/13/2018 +0 days 🔍
11/14/2018 +1 days 🔍
11/16/2018 +2 days 🔍
02/05/2025 +2273 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-8581 (🔍)
GCVE (CVE): GCVE-0-2018-8581
GCVE (VulDB): GCVE-100-126749
SecurityFocus: 105837 - Microsoft Exchange Server CVE-2018-8581 Remote Privilege Escalation Vulnerability
SecurityTracker: 1042141

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/14/2018 09:52
Updated: 02/05/2025 01:47
Changes: 11/14/2018 09:52 (71), 04/12/2020 11:10 (6), 06/06/2023 09:03 (4), 04/23/2024 17:24 (25), 09/09/2024 22:29 (1), 02/05/2025 01:47 (12)
Complete: 🔍
Cache ID: 216::103

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