SUSE update for open-vm-tools



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-20867
CVE-2023-20900
CWE-ID CWE-287
CWE-310
Exploitation vector Local network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
Subscribe 		SUSE Linux Enterprise Server for SAP Applications 15
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15 SP1 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise Server 15
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing 15
Operating systems & Components / Operating system

SUSE CaaS Platform
Operating systems & Components / Operating system

libvmtools0
Operating systems & Components / Operating system package or component

open-vm-tools-desktop
Operating systems & Components / Operating system package or component

libvmtools-devel
Operating systems & Components / Operating system package or component

open-vm-tools
Operating systems & Components / Operating system package or component

libvmtools0-debuginfo
Operating systems & Components / Operating system package or component

open-vm-tools-sdmp-debuginfo
Operating systems & Components / Operating system package or component

open-vm-tools-desktop-debuginfo
Operating systems & Components / Operating system package or component

open-vm-tools-debugsource
Operating systems & Components / Operating system package or component

open-vm-tools-debuginfo
Operating systems & Components / Operating system package or component

open-vm-tools-sdmp
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU77208

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-20867

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 in the vgauth module. An attacker who compromised the ESXi host can bypass authentication process and execute privileged commands across Windows, Linux, and PhotonOS (vCenter) guest VMs without authentication of guest credentials from a compromised ESXi host and no default logging on guest VMs.

Note, the vulnerability is being actively exploited in the wild by the UNC3886 APT actor.

Mitigation

Update the affected package open-vm-tools to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP1

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Server 15: SP1

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

SUSE Linux Enterprise High Performance Computing 15: SP1

SUSE CaaS Platform: 4.0

libvmtools0: before 11.3.5-150100.4.37.18.1

open-vm-tools-desktop: before 11.3.5-150100.4.37.18.1

libvmtools-devel: before 11.3.5-150100.4.37.18.1

open-vm-tools: before 11.3.5-150100.4.37.18.1

libvmtools0-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-sdmp-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-desktop-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-debugsource: before 11.3.5-150100.4.37.18.1

open-vm-tools-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-sdmp: before 11.3.5-150100.4.37.18.1

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233504-1/


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.

2) Cryptographic issues

EUVDB-ID: #VU80188

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20900

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper verification of SAML token signature. A remote attacker can bypass SAML token signature verification and perform man-in-the-middle (MITM) network positioning between vCenter server and the virtual machine.

Mitigation

Update the affected package open-vm-tools to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP Applications 15: SP1

SUSE Linux Enterprise Server 15 SP1 LTSS: 15-SP1

SUSE Linux Enterprise Server 15: SP1

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

SUSE Linux Enterprise High Performance Computing 15: SP1

SUSE CaaS Platform: 4.0

libvmtools0: before 11.3.5-150100.4.37.18.1

open-vm-tools-desktop: before 11.3.5-150100.4.37.18.1

libvmtools-devel: before 11.3.5-150100.4.37.18.1

open-vm-tools: before 11.3.5-150100.4.37.18.1

libvmtools0-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-sdmp-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-desktop-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-debugsource: before 11.3.5-150100.4.37.18.1

open-vm-tools-debuginfo: before 11.3.5-150100.4.37.18.1

open-vm-tools-sdmp: before 11.3.5-150100.4.37.18.1

CPE2.3 External links

http://www.suse.com/support/update/announcement/2023/suse-su-20233504-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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



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