KLA12342
Multiple vulnerabilities in Microsoft Exchange Server

Обновлено: 18/01/2022
Дата обнаружения
09/11/2021
Уровень угрозы
High
Описание

Multiple vulnerabilities were found in Microsoft Exchange Server. Malicious users can exploit these vulnerabilities to perform cross-site scripting attack, execute arbitrary code, spoof user interface.

Below is a complete list of vulnerabilities:

  1. A spoofing vulnerability in Microsoft Exchange Server can be exploited remotely to spoof user interface.
  2. A remote code execution vulnerability in Microsoft Exchange Server can be exploited remotely to execute arbitrary code.
Эксплуатация

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

Пораженные продукты

Microsoft Exchange Server 2019 Cumulative Update 10
Microsoft Exchange Server 2019 Cumulative Update 11
Microsoft Exchange Server 2013 Cumulative Update 23
Microsoft Exchange Server 2016 Cumulative Update 22
Microsoft Exchange Server 2016 Cumulative Update 21

Решение

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

Первичный источник обнаружения
CVE-2021-41349
CVE-2021-42321
CVE-2021-42305
Оказываемое влияние
?
ACE 
[?]

XSS/CSS 
[?]

SUI 
[?]
Связанные продукты
Microsoft Exchange Server
CVE-IDS
KB list

5007409

Microsoft official advisories
Microsoft Security Update Guide
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