openEuler 22.03 LTS SP1 update for open-vm-tools

Published: 2023-09-15

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	openEuler Operating systems & Components / Operating system open-vm-tools-salt-minion Operating systems & Components / Operating system package or component open-vm-tools-desktop Operating systems & Components / Operating system package or component open-vm-tools-debugsource Operating systems & Components / Operating system package or component open-vm-tools-test Operating systems & Components / Operating system package or component open-vm-tools-sdmp Operating systems & Components / Operating system package or component open-vm-tools-devel Operating systems & Components / Operating system package or component open-vm-tools-debuginfo Operating systems & Components / Operating system package or component open-vm-tools Operating systems & Components / Operating system package or component
Vendor	openEuler

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

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP1

open-vm-tools-salt-minion: before 12.0.5-3

open-vm-tools-desktop: before 12.0.5-3

open-vm-tools-debugsource: before 12.0.5-3

open-vm-tools-test: before 12.0.5-3

open-vm-tools-sdmp: before 12.0.5-3

open-vm-tools-devel: before 12.0.5-3

open-vm-tools-debuginfo: before 12.0.5-3

open-vm-tools: before 12.0.5-3

CPE2.3

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1630

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