VMSA-2023-0026

• VMware Cloud Director Appliance (VCD Appliance)

An authentication bypass vulnerability in VMware Cloud Director Appliance was privately reported to VMware. Updates are available to remediate this vulnerability in the affected VMware product.

VMware Cloud Director Appliance contains an authentication bypass vulnerability in case VMware Cloud Director Appliance was upgraded to 10.5 from
an older version. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.

On an upgraded version of VMware Cloud Director Appliance 10.5, a malicious actor with network access to the appliance can bypass login
restrictions when authenticating on port 22 (ssh) or port 5480 (appliance management console). This bypass is not present on port 443 (VCD provider
and tenant login). On a new installation of VMware Cloud Director Appliance 10.5, the bypass is not present.

To remediate CVE-2023-34060 follow the guidance mentioned in KB95534 in the ‘Fixed Version’ column of the ‘Response Matrix’ found below.  

None.

None.

Only deployments that have upgraded to 10.5 from an older release are impacted by CVE-2023-34060. New deployments of 10.5 are not impacted by CVE-2023-34060. 

VMware Cloud Director Appliance is impacted since it uses a version of sssd from the underlying Photon OS that is affected by CVE-2023-34060: https://github.com/vmware/photon/wiki/security-advisory-CVE-2023-34060

VMware has determined other appliances to not be impacted by this vulnerability. 

VMware would like to thank Dustin Hartle from Ideal Integrations Inc for reporting this issue to us.

Fixed Version(s) and Release Notes:

KB95534

Photon Security Advisory: https://github.com/vmware/photon/wiki/security-advisory-CVE-2023-34060

Mitre CVE Dictionary Links:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34060

FIRST CVSSv3 Calculator:
CVE-2023-34060: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

2023-11-14 VMSA-2023-0026
Initial security advisory.

E-mail: security@vmware.com

PGP key at: 
https://kb.vmware.com/kb/1055 

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