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DETECTION OVERVIEW

VMware vCenter Exploit - CVE-2020-3952

Risk Factors

An unauthenticated attacker with network access can easily gain complete control of the vCenter server and find an entry point for further attacks on your network.

Kill Chain

Exploitation

Risk Score

92

Detection diagram
Next in Exploitation: VMware vCenter Exploit - CVE-2021-21972

Attack Background

An attacker with network access to port 389 on an affected vCenter server can exploit an access control vulnerability in the VMware Directory Service (vmdir). First, the attacker attempts to create a session by sending fake LDAP credentials to the vCenter server. The LDAP authentication attempt fails (1), as expected, but vmdir creates an unauthenticated session with the attacker. The attacker successfully runs an LDAP command to create a user (2) and then runs another command to add the new user to an administrator group. As this new administrator user, the attacker can gain complete control of the vCenter system.

Mitigation Options

Apply security updates for affected deployments of vCenter Server

Make sure that audit and event logs record new account creation

Implement network segmentation, security zones, and firewall policies that limit how devices can communicate

MITRE ATT&CK ID

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