Описание
A flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write files to an arbitrary location via path traversal and execute arbitrary code on a glusterfs server node.
Отчет
This issue did not affect Red Hat Enterprise Linux 6 and 7 as the flaw is present in glusterfs-server, which is not shipped there. This flaw affects glusterfs versions included in Red Hat Virtualization 4 Hypervisor. However, in recommended configurations, the vulnerability is only exposed to hypervisor administrators and can not be exploited from virtual machines or other hosts on the network. For Red Hat Virtualization, Product Security has rated this flaw as Moderate. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Меры по смягчению последствий
To limit exposure of gluster server nodes :
- gluster server should be on LAN and not reachable from public networks.
- Use gluster auth.allow and auth.reject.
- Use TLS certificates to authenticate gluster clients. caveat: This does not protect from attacks by authenticated gluster clients.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | glusterfs | Not affected | ||
| Red Hat Enterprise Linux 7 | glusterfs | Not affected | ||
| Red Hat Enterprise Linux 8 | glusterfs | Not affected | ||
| Native Client for RHEL 6 for Red Hat Storage | glusterfs | Fixed | RHSA-2018:2608 | 04.09.2018 |
| Native Client for RHEL 7 for Red Hat Storage | glusterfs | Fixed | RHSA-2018:2607 | 04.09.2018 |
| Red Hat Gluster Storage 3.4 for RHEL 6 | glusterfs | Fixed | RHSA-2018:2608 | 04.09.2018 |
| Red Hat Gluster Storage 3.4 for RHEL 6 | redhat-release-server | Fixed | RHSA-2018:2608 | 04.09.2018 |
| Red Hat Gluster Storage 3.4 for RHEL 6 | redhat-storage-server | Fixed | RHSA-2018:2608 | 04.09.2018 |
| Red Hat Gluster Storage 3.4 for RHEL 7 | glusterfs | Fixed | RHSA-2018:2607 | 04.09.2018 |
| Red Hat Gluster Storage 3.4 for RHEL 7 | redhat-release-server | Fixed | RHSA-2018:2607 | 04.09.2018 |
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Дополнительная информация
Статус:
EPSS
8.1 High
CVSS3
Связанные уязвимости
A flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write files to an arbitrary location via path traversal and execute arbitrary code on a glusterfs server node.
A flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write files to an arbitrary location via path traversal and execute arbitrary code on a glusterfs server node.
A flaw was found in RPC request using gfs3_mknod_req supported by glus ...
A flaw was found in RPC request using gfs3_mknod_req supported by glusterfs server. An authenticated attacker could use this flaw to write files to an arbitrary location via path traversal and execute arbitrary code on a glusterfs server node.
EPSS
8.1 High
CVSS3