SB2022090715 - Debian update for pcs

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Main Vulnerability Database SB2022090715

SB2022090715 - Debian update for pcs

Published: September 7, 2022

Security Bulletin ID SB2022090715
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Improper Authentication (CVE-ID: CVE-2022-1049)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to pcs daemon allows expired accounts, and accounts with expired passwords to login when using PAM authentication. A remote user with an expired account can still access to the application.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-2735)

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

CVSSv4: 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


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

The vulnerability exists due to incorrect permissions set on a Unix socket used for internal communication between PCS daemons. A local user can obtain the authentication token for hacluster and gain control over the cluster managed by pcs.


Remediation

Install update from vendor's website.

References