SUSE update for polkit

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU53837

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2021-3560

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

Exploit availability: Yes

Description

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

The vulnerability exists due to application does not properly impose security restrictions in the "polkit_system_bus_name_get_creds_sync" function, which leads to security restrictions bypass and privilege escalation.

Mitigation

Update the affected package polkit to the latest version.

Vulnerable software versions

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise Server for SAP: 15-SP1 - 15

SUSE Linux Enterprise High Performance Computing: 15-LTSS - 15-SP1-ESPOS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

typelib-1_0-Polkit-1_0: before 0.114-3.12.1

polkit-devel-debuginfo: before 0.114-3.12.1

polkit-devel: before 0.114-3.12.1

polkit-debugsource: before 0.114-3.12.1

polkit-debuginfo: before 0.114-3.12.1

polkit: before 0.114-3.12.1

libpolkit0-debuginfo: before 0.114-3.12.1

libpolkit0: before 0.114-3.12.1

CPE2.3

• cpe:2.3:o:suse:suse_manager_proxy:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-ESPOS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP1-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:6:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_caas_platform:4.0:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-LTSS:*:*:*:*:*:*:*
• cpe:2.3:a:suse:typelib-1_0-polkit-1_0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-devel-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-devel:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:polkit:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpolkit0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libpolkit0:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20211844-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.