#VU72630 Incorrect default permissions in Ceph - CVE-2022-3650
Published: February 28, 2023
Vulnerability identifier: #VU72630
Vulnerability risk: Low
CVSSv4.0: 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
Vulnerable software:
Ceph
Ceph
Software vendor:
Red Hat Inc.
Red Hat Inc.
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.
Remediation
Install updates from vendor's website.