CVE-2013-0326
Published: 5 December 2019
OpenStack nova base images permissions are world readable
Notes
Author | Note |
---|---|
seth-arnold | /var/lib/nova/instances/_base/ apparently stores images with DAC permissions set to 0644. Deferred while waiting for upstream to address the issue -- I suspect the fix is simple, but the consequences may not be. |
jdstrand | Ignoring. VMs are confined by AppArmor and are not able to read each other's files. Even if this were not the case, the files would be readable by the the libvirt-qemu:kvm user, so changing the permissions to 0640 would not help greatly. Therefore the protection would only be against other users on the system and a typical production Nova installation will not have these types of users or extra services. Furthermore, changing the permissions in a security update could be disruptive to production systems on upgrade. no upstream fix as of 2014-05-05 |
Priority
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |