CVE-2019-1084 Information

Description

An information disclosure vulnerability exists when Exchange allows creation of entities with Display Names having non-printable characters. An authenticated attacker could exploit this vulnerability by creating entities with invalid display names which when added to conversations remain invisible. This security update addresses the issue by validating display names upon creation in Microsoft Exchange and by rendering invalid display names correctly in Microsoft Outlook clients. aka ‘Microsoft Exchange Information Disclosure Vulnerability’.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Reference

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1084

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.5