Security Updates for Microsoft Exchange Server (February 2024)

critical Nessus Plugin ID 190473

Synopsis

The Microsoft Exchange Server installed on the remote host is affected by a vulnerability.

Description

The Microsoft Exchange Server installed on the remote host is missing a security update. It is, therefore, affected by a vulnerability as referenced in the Feb, 2024 security bulletin.

- Microsoft Exchange Server Elevation of Privilege Vulnerability (CVE-2024-21410)

While Exchange Server 2016 is included in the advisory as an affected product, no patch has been issued for mitigation, and no version is documented as including a fix for the vulnerability. Microsoft recommends users enable Extended Protection for Authentication (EPA) to protect against the vulnerability.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Microsoft has released KB5035606 to address this issue, or enable Extended Protection for Authentication (EPA) to be protected from the vulnerability.

See Also

http://www.nessus.org/u?18dfb6b3

Plugin Details

Severity: Critical

ID: 190473

File Name: smb_nt_ms24_feb_exchange.nasl

Version: 1.7

Type: local

Agent: windows

Published: 2/13/2024

Updated: 10/4/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

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

CVSS Score Source: CVE-2024-21410

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:exchange_server:2016, cpe:/a:microsoft:exchange_server:2019

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/13/2024

Vulnerability Publication Date: 2/13/2024

CISA Known Exploited Vulnerability Due Dates: 3/7/2024

Reference Information

CVE: CVE-2024-21410

IAVA: 2024-A-0088-S

MSFT: MS24-5035606

MSKB: 5035606