SUSE update for openvpn

1) Improper Authentication

EUVDB-ID: #VU61608

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0547

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error when processing authentication requests in external authentication plug-ins when more than one of them makes use of deferred authentication replies. A remote attacker can bypass authentication process and gain unauthorized access to the network with only partially correct credentials.

Mitigation

Update the affected package openvpn to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 8 - 9

SUSE Linux Enterprise Server for SAP: 12-SP3 - 12-SP4

HPE Helion Openstack: 8

SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5

SUSE OpenStack Cloud: 8 - 9

openvpn-debugsource: before 2.3.8-16.29.1

openvpn-debuginfo: before 2.3.8-16.29.1

openvpn-auth-pam-plugin-debuginfo: before 2.3.8-16.29.1

openvpn-auth-pam-plugin: before 2.3.8-16.29.1

openvpn: before 2.3.8-16.29.1

CPE2.3

• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:8:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP3:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP4:*:*:*:*:*:*:
• cpe:2.3:o:suse:hpe_helion_openstack:8:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP2-BCL:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-LTSS:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-BCL:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_openstack_cloud:8:*:*:*:*:*:*:
• cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:
• cpe:2.3:o:suse:openvpn-debugsource:*:*:*:*:*:suse_linux:*:
• cpe:2.3:o:suse:openvpn-debuginfo:*:*:*:*:*:suse_linux:*:
• cpe:2.3:o:suse:openvpn-auth-pam-plugin-debuginfo:*:*:*:*:*:suse_linux:*:
• cpe:2.3:o:suse:openvpn-auth-pam-plugin:*:*:*:*:*:suse_linux:*:
• cpe:2.3:o:suse:openvpn:*:*:*:*:*:suse_linux:*:

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221024-1/

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.