Описание
Microsoft Exchange Information Disclosure Vulnerability
An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages. An attacker who successfully exploited the vulnerability could use this to gain further information from a user.
To exploit the vulnerability, an attacker could include specially crafted OWA messages that could be loaded, without warning or filtering, from the attacker-controlled URL. This callback vector provides an information disclosure tactic used in web beacons and other types of tracking systems.
The security update corrects the way that Exchange handles these token validations.
FAQ
What type of information could be disclosed by this vulnerability?
The type of information that could be disclosed if an attacker successfully exploited this vulnerability is data inside the targeted website like IDs, tokens, nonces, and other sensitive information.
Обновления
| Продукт | Статья | Обновление |
|---|---|---|
| Microsoft Exchange Server 2013 Cumulative Update 23 | ||
| Microsoft Exchange Server 2019 Cumulative Update 6 | ||
| Microsoft Exchange Server 2016 Cumulative Update 17 | ||
| 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
7.1 High
CVSS3
Связанные уязвимости
<p>An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages. An attacker who successfully exploited the vulnerability could use this to gain further information from a user.</p> <p>To exploit the vulnerability, an attacker could include specially crafted OWA messages that could be loaded, without warning or filtering, from the attacker-controlled URL. This callback vector provides an information disclosure tactic used in web beacons and other types of tracking systems.</p> <p>The security update corrects the way that Exchange handles these token validations.</p>
An information disclosure vulnerability exists in how Microsoft Exchange validates tokens when handling certain messages, aka 'Microsoft Exchange Information Disclosure Vulnerability'.
Уязвимость почтового сервера Microsoft Exchange Server, связанная с недостаточной проверки входных данных при анализе токенов, позволяюшая нарушителю получить несанкционированный доступ к защищаемой информации
Уязвимость почтового сервера Microsoft Exchange Server, связанная с ошибками при обработке сообщений, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации
Microsoft Exchange Server Remote Code Execution Vulnerability
EPSS
7.1 High
CVSS3