Описание
Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden (lxd/project/limits/permissions.go), which omits raw.apparmor and raw.qemu.conf from the set of keys blocked under the restricted.virtual-machines.lowlevel=block project restriction. A remote attacker with can_edit permission on a VM instance in a restricted project can inject an AppArmor rule and a QEMU chardev configuration that bridges the LXD Unix socket into the guest VM, enabling privilege escalation to LXD cluster administrator and subsequently to host root.
Ссылки
- Issue Tracking
- Third Party Advisory
- Third Party Advisory
Уязвимые конфигурации
Одно из
EPSS
9.1 Critical
CVSS3
Дефекты
Связанные уязвимости
Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist in isVMLowLevelOptionForbidden (lxd/project/limits/permissions.go), which omits raw.apparmor and raw.qemu.conf from the set of keys blocked under the restricted.virtual-machines.lowlevel=block project restriction. A remote attacker with can_edit permission on a VM instance in a restricted project can inject an AppArmor rule and a QEMU chardev configuration that bridges the LXD Unix socket into the guest VM, enabling privilege escalation to LXD cluster administrator and subsequently to host root.
Canonical LXD versions 4.12 through 6.7 contain an incomplete denylist ...
LXD: VM lowlevel restriction bypass via raw.apparmor and raw.qemu.conf
Уязвимость функции isVMLowLevelOptionForbidden() системы управления контейнерами LXD (Linux Container Daemon), позволяющая нарушителю повысить свои привилегии
EPSS
9.1 Critical
CVSS3