VMware vSphere 7.0 ESXi Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The ESXi Common Information Model (CIM) service must be disabled.
The CIM system provides an interface that enables hardware-level management from remote applications via a set of standard application programming interfaces (APIs). These APIs are consumed by exte...Rule Medium Severity -
SRG-OS-000478-VMM-001980
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Remote logging for ESXi hosts must be configured.
Remote logging to a central log host provides a secure, centralized store for ESXi logs. By gathering host log files onto a central host, it can more easily monitor all hosts with a single tool. It...Rule Medium Severity -
The ESXi host Secure Shell (SSH) daemon must use FIPS 140-2 validated cryptographic modules to protect the confidentiality of remote access sessions.
OpenSSH on the ESXi host ships with a FIPS 140-2 validated cryptographic module that is enabled by default. For backward compatibility reasons, this can be disabled so this setting can be audited a...Rule Medium Severity -
The ESXi host Secure Shell (SSH) daemon must be configured to not allow gateway ports.
SSH Transmission Control Protocol (TCP) connection forwarding provides a mechanism to establish TCP connections proxied by the SSH server. This function can provide convenience similar to a virtual...Rule Low Severity -
The ESXi host must be configured with a sufficiently complex password policy.
To enforce the use of complex passwords, minimum numbers of characters of different classes are mandated. The use of complex passwords reduces the ability of attackers to successfully obtain vali...Rule Medium Severity -
The ESXi host must prohibit the reuse of passwords within five iterations.
If a user or root used the same password continuously or was allowed to change it back shortly after being forced to change it to something else, it would provide a potential intruder with the oppo...Rule Medium Severity -
The ESXi host must be configured to disable nonessential capabilities by disabling Secure Shell (SSH).
The ESXi Shell is an interactive command line interface (CLI) available at the ESXi server console. The ESXi shell provides temporary access to commands essential for server maintenance. Intended p...Rule Medium Severity -
ESXi hosts using Host Profiles and/or Auto Deploy must use the vSphere Authentication Proxy to protect passwords when adding themselves to Active Directory.
If a host is configured to join an Active Directory domain using Host Profiles and/or Auto Deploy, the Active Directory credentials are saved in the profile and are transmitted over the network. ...Rule Medium Severity -
The ESXi host must enable a persistent log location for all locally stored logs.
ESXi can be configured to store log files on an in-memory file system. This occurs when the host's "/scratch" directory is linked to "/tmp/scratch". When this is done, only a single day's worth of ...Rule Medium Severity
Node 2
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