CVE-2020-25654

2020-10-2700:00:00

ubuntu.com

acl bypass

pacemaker

haclient group

ipc communication

daemons

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.002

Percentile

57.2%

JSON

An ACL bypass flaw was found in pacemaker. An attacker having a local
account on the cluster and in the haclient group could use IPC
communication with various daemons directly to perform certain tasks that
they would be prevented by ACLs from doing if they went through the
configuration.

Bugs

<https://bugzilla.redhat.com/show_bug.cgi?id=1888191>

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpacemaker< 1.1.18-0ubuntu1.3UNKNOWN
ubuntu20.04noarchpacemaker< 2.0.3-3ubuntu4.1UNKNOWN
ubuntu20.10noarchpacemaker< 2.0.4-2ubuntu3.1UNKNOWN
ubuntu16.04noarchpacemaker< 1.1.14-2ubuntu1.9UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	pacemaker	< 1.1.18-0ubuntu1.3	UNKNOWN
ubuntu	20.04	noarch	pacemaker	< 2.0.3-3ubuntu4.1	UNKNOWN
ubuntu	20.10	noarch	pacemaker	< 2.0.4-2ubuntu3.1	UNKNOWN
ubuntu	16.04	noarch	pacemaker	< 1.1.14-2ubuntu1.9	UNKNOWN