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kasperskyKaspersky LabKLA20042
HistoryNov 08, 2022 - 12:00 a.m.

KLA20042 Multiple vulnerabilities in Microsoft Server Software

2022-11-0800:00:00
Kaspersky Lab
threats.kaspersky.com
25
microsoft server software
vulnerabilities
spoofing
privilege escalation
public exploits
microsoft exchange server
kb5019758
windows update
affected products

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

9.1 High

AI Score

Confidence

High

0.045 Low

EPSS

Percentile

92.5%

Multiple vulnerabilities were found in Microsoft Server Software. Malicious users can exploit these vulnerabilities to spoof user interface, gain privileges.

Below is a complete list of vulnerabilities:

  1. A spoofing vulnerability in Microsoft Exchange Server can be exploited remotely to spoof user interface.
  2. An elevation of privilege vulnerability in Microsoft Exchange Server can be exploited remotely to gain privileges.

Original advisories

CVE-2022-41078

CVE-2022-41079

CVE-2022-41080

CVE-2022-41123

Exploitation

Public exploits exist for this vulnerability.

Related products

Microsoft-Exchange-Server

CVE list

CVE-2022-41078 critical

CVE-2022-41079 critical

CVE-2022-41080 critical

CVE-2022-41123 critical

KB list

5019758

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Impacts

  • PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

  • SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

  • Microsoft Exchange Server 2019 Cumulative Update 11Microsoft Exchange Server 2019 Cumulative Update 12Microsoft Exchange Server 2016 Cumulative Update 22Microsoft Exchange Server 2013 Cumulative Update 23Microsoft Exchange Server 2016 Cumulative Update 23

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

9.1 High

AI Score

Confidence

High

0.045 Low

EPSS

Percentile

92.5%