Incorrect default permissions in Ceph - CVE-2022-3650
Published: February 28, 2023
Vulnerability identifier: #VU72630
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear
CVE-ID: CVE-2022-3650
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Red Hat Inc.
Affected software:
Ceph
Ceph
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to ceph-crash.service runs the ceph-crash Python script with root privileges. The script is operating in the directory /var/lib/ceph/crash which is controlled by the unprivileged ceph user. A local user can inject arbitrary data into the crash dump and force the privileged script to write that file into an arbitrary location on the system, resulting in privilege escalation.
How to mitigate CVE-2022-3650
Install updates from vendor's website.