Security restrictions bypass in Ceph

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU66440

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0670

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to an error within the "volumes" plugin in Ceph Manager. The Openstack manilla owning a Ceph File system "share" enables the owner to read/write any manilla share or entire file system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Ceph: 17.2.0 - 17.2.1

External links

http://ceph.io/en/news/blog/2022/v17-2-2-quincy-released/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5O3XMDFZWA2FWU6GAYOVSFJPOUTXN42N/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TIRTTRG5O4YP2TNGDCDOHIHP2DM3DFBT/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.