title: Improperly constrained session cookies in Zoom Client for Meetings
description: The Zoom Client for Meetings (for Android, iOS, Linux, MacOS, and Windows) before version 5.10.0 failed to properly constrain client session cookies to Zoom domains. This issue could be used in a more sophisticated attack to send an unsuspecting users Zoom-scoped session cookies to a non-Zoom domain. This could potentially allow for spoofing of a Zoom user.
problem types: Exposure of Resource to Wrong Sphere
affected:
{
product: Zoom Client for Meetings for Android
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
{
product: Zoom Client for Meetings for iOS
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
{
product: Zoom Client for Meetings for Linux
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
{
product: Zoom Client for Meetings for MacOS
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
{
product: Zoom Client for Meetings for Windows
vendor: Zoom Video Communications Inc
versions:
lessThan: 5.10.0, status: affected, version: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 5.9
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:L
version: 3.1
]