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gentooGentoo FoundationGLSA-202312-10
HistoryDec 23, 2023 - 12:00 a.m.

Ceph: Root Privilege Escalation

2023-12-2300:00:00
Gentoo Foundation
security.gentoo.org
8
ceph
privilege escalation
vulnerability
root
python
script
directory
unprivileged user
crash service
resolution
upgrade

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

AI Score

Confidence

Low

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.2%

Background

Ceph is a distributed network file system designed to provide excellent performance, reliability, and scalability.

Description

A vulnerability has been discovered in Ceph. Please review the CVE identifier referenced below for details.

Impact

The ceph-crash.service runs the ceph-crash Python script as root. The script is operating in the directory /var/lib/ceph/crash which is controlled by the unprivileged ceph user (ceph:ceph mode 0750). The script periodically scans for new crash directories and forwards the content via ceph crash post.

Workaround

There is no known workaround at this time.

Resolution

All Ceph users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=sys-cluster/ceph-17.2.6"
OSVersionArchitecturePackageVersionFilename
Gentooanyallsys-cluster/ceph< 17.2.6UNKNOWN

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.8 Medium

AI Score

Confidence

Low

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.2%