Описание
Microsoft Exchange Server Spoofing Vulnerability
A spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user.
This update addresses this vulnerability.
To prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.
FAQ
Why are the updates listed those that were released in September?
This vulnerability was found in the Exchange Server Installer. This type of vulnerability can only be addressed in a complete release as opposed to a cumulative update. We allowed time for customers to move to the September release prior to disclosing the vulnerability.
What are the steps to configure Download Domains to enable the protection from this vulnerability?
Yes, please see Exchange Download Domains for detailed information.
Обновления
| Продукт | Статья | Обновление |
|---|---|---|
| Microsoft Exchange Server 2019 Cumulative Update 7 | ||
| Microsoft Exchange Server 2016 Cumulative Update 18 |
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Возможность эксплуатации
Publicly Disclosed
Exploited
Latest Software Release
Older Software Release
DOS
EPSS
5.4 Medium
CVSS3
Связанные уязвимости
<p>A spoofing vulnerability exists in Microsoft Exchange Server which could result in an attack that would allow a malicious actor to impersonate the user.</p> <p>This update addresses this vulnerability.</p> <p>To prevent these types of attacks, Microsoft recommends customers to download inline images from different DNSdomains than the rest of OWA. Please see further instructions in the FAQ to put in place this mitigations.</p>
Microsoft Exchange Server Spoofing Vulnerability This CVE ID is unique from CVE-2021-24085.
Уязвимость почтового сервера Microsoft Exchange Server связанная с отсутствием защиты служебных данных, позволяющая нарушителю проводить спуфинг-атаки
Microsoft Exchange Server Remote Code Execution Vulnerability
Microsoft Exchange Server Remote Code Execution Vulnerability
EPSS
5.4 Medium
CVSS3