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kasperskyKaspersky LabKLA20232
HistoryFeb 14, 2023 - 12:00 a.m.

KLA20232 Multiple vulnerabilities in Microsoft Exchange Server

2023-02-1400:00:00
Kaspersky Lab
threats.kaspersky.com
117

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

8.7 High

AI Score

Confidence

High

6.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

0.516 Medium

EPSS

Percentile

97.5%

JSON

Detect date:

02/14/2023

Severity:

High

Description:

Remote code execution vulnerabilities were found in Microsoft Exchange Server. Malicious users can exploit these vulnerabilities to execute arbitrary code.

Exploitation:

Public exploits exist for this vulnerability.

Affected products:

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

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)

Original advisories:

CVE-2023-21707
CVE-2023-21710
CVE-2023-21529
CVE-2023-21706

Impacts:

ACE

Related products:

Microsoft Exchange Server

CVE-IDS:

CVE-2023-217078.8Critical
CVE-2023-217107.2High
CVE-2023-215298.8Critical
CVE-2023-217068.8Critical

KB list:

5023038
5024296

Microsoft official advisories:

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Security Updates for Microsoft Exchange Server (February 2023)
2023-02-14 00:00:00
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Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: February 14, 2023 (KB5023038)
2023-02-14 08:00:00
Description of the security update for Microsoft Exchange Server 2019, 2016, and 2013: March 14, 2023 (KB5024296)
2023-02-14 08:00:00
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Remote code execution
2023-02-14 20:15:00
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2023-02-14 20:15:00
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CVE-2023-21706
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Microsoft Exchange Server Remote Code Execution Vulnerability (CNVD-2023-18284)
2023-02-17 00:00:00
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2023-02-15 00:41:59

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

8.7 High

AI Score

Confidence

High

6.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

0.516 Medium

EPSS

Percentile

97.5%

JSON
Related for KLA20232
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