KLA60568 Multiple vulnerabilities in Microsoft Server Software

Multiple vulnerabilities were found in Microsoft Server Software. Malicious users can exploit these vulnerabilities to obtain sensitive information, execute arbitrary code, spoof user interface.

Below is a complete list of vulnerabilities:

1. An information disclosure vulnerability in Microsoft Exchange Server can be exploited remotely to obtain sensitive information.
2. A remote code execution vulnerability in Microsoft Exchange Server can be exploited remotely to execute arbitrary code.
3. A spoofing vulnerability in Microsoft Exchange Server can be exploited remotely to spoof user interface.

Original advisories

CVE-2023-36777

CVE-2023-36744

CVE-2023-36757

CVE-2023-36756

CVE-2023-36745

Exploitation

Public exploits exist for this vulnerability.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Exchange-Server

CVE list

CVE-2023-36777 high

CVE-2023-36744 critical

CVE-2023-36757 critical

CVE-2023-36756 critical

CVE-2023-36745 critical

KB list

5026261

5030524

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

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• 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 2016 Cumulative Update 23Microsoft Exchange Server 2019 Cumulative Update 13Microsoft Exchange Server 2019 Cumulative Update 12