SUSE update for strongswan

1) State Issues

EUVDB-ID: #VU59994

Risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-45079

CWE-ID: CWE-371 - State Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper handling of EAP-Success messages. A remote attacker can send a specially crafted (early) EAP-Success message to the affected system and bypass authentication or perform a denial of service attack.

Mitigation

Update the affected package strongswan to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Realtime Extension: 15-SP2

SUSE Linux Enterprise Server: 15-SP2-BCL - 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP2-ESPOS - 15-SP4

SUSE Enterprise Storage: 7.1

SUSE Linux Enterprise Workstation Extension: 15-SP3 - 15-SP4

SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP3 - 15-SP4

SUSE Manager Server: 4.1 - 4.2

SUSE Manager Retail Branch Server: 4.1

SUSE Manager Proxy: 4.1 - 4.2

SUSE Linux Enterprise Server for SAP: 15-SP2

SUSE Linux Enterprise Module for Basesystem: 15-SP3 - 15-SP4

SUSE Linux Enterprise Desktop: 15-SP3 - 15-SP4

SUSE Linux Enterprise Server for SAP Applications: 15-SP3 - 15-SP4

strongswan-nm-debuginfo: before 5.8.2-11.24.1

strongswan-nm: before 5.8.2-11.24.1

strongswan-doc: before 5.8.2-11.24.1

strongswan-libs0-debuginfo: before 5.8.2-11.24.1

strongswan-libs0: before 5.8.2-11.24.1

strongswan-ipsec-debuginfo: before 5.8.2-11.24.1

strongswan-ipsec: before 5.8.2-11.24.1

strongswan-hmac: before 5.8.2-11.24.1

strongswan-debugsource: before 5.8.2-11.24.1

strongswan-debuginfo: before 5.8.2-11.24.1

strongswan: before 5.8.2-11.24.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_realtime_extension:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP2-BCL:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP2-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP2-ESPOS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP2-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing:15-SP3-LTSS:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_enterprise_storage:7.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_workstation_extension:15-SP4:*:*:*:*:*:*:*
• cpe:2.3:a:suse:suse_linux_enterprise_module_for_packagehub_subpackages:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_server:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_retail_branch_server:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_manager_proxy:4.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:15-SP2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_desktop:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications:15-SP3:*:*:*:*:*:*:*
• cpe:2.3:a:suse:strongswan-nm-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-nm:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-doc:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-libs0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-libs0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-ipsec-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-ipsec:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-hmac:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:strongswan:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220492-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.