Access Control Flaw in OpenStack Nova Affects Live Migration
CVE-2020-17376
8.3HIGH
Summary
A vulnerability in the Guest.migrate function within OpenStack Nova allows users to potentially access devices on the destination host that are shared with the source host. This occurs after performing a soft reboot of an instance that has undergone live migration, enabling unauthorized access to block devices that may point to different Cinder volumes. Deployments that permit host-based connections, such as root and ephemeral devices, are particularly affected, necessitating prompt attention to ensure proper security measures.
References
CVSS V3.1
Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved