VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000021-GPOS-00005
<GroupDescription></GroupDescription>Group -
The Photon operating system must automatically lock an account when three unsuccessful logon attempts occur.
<VulnDiscussion>By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
<GroupDescription></GroupDescription>Group -
The Photon operating system must display the Standard Mandatory DOD Notice and Consent Banner before granting Secure Shell (SSH) access.
<VulnDiscussion>Display of a standardized and approved use notification before granting access to the operating system ensures privacy and se...Rule Medium Severity -
SRG-OS-000027-GPOS-00008
<GroupDescription></GroupDescription>Group -
The Photon operating system must limit the number of concurrent sessions to 10 for all accounts and/or account types.
<VulnDiscussion>Operating system management includes the ability to control the number of users and user sessions that utilize an operating s...Rule Medium Severity -
SRG-OS-000029-GPOS-00010
<GroupDescription></GroupDescription>Group -
The Photon operating system must set a session inactivity timeout of 15 minutes or less.
<VulnDiscussion>A session timeout is an action taken when a session goes idle for any reason. Rather than relying on the user to manually dis...Rule Medium Severity -
SRG-OS-000032-GPOS-00013
<GroupDescription></GroupDescription>Group -
The Photon operating system must have the sshd SyslogFacility set to "authpriv".
<VulnDiscussion>Automated monitoring of remote access sessions allows organizations to detect cyberattacks and ensure ongoing compliance with...Rule Medium Severity -
SRG-OS-000032-GPOS-00013
<GroupDescription></GroupDescription>Group -
The Photon operating system must have sshd authentication logging enabled.
<VulnDiscussion>Automated monitoring of remote access sessions allows organizations to detect cyberattacks and ensure ongoing compliance with...Rule Medium Severity -
SRG-OS-000032-GPOS-00013
<GroupDescription></GroupDescription>Group -
The Photon operating system must have the sshd LogLevel set to "INFO".
<VulnDiscussion>Automated monitoring of remote access sessions allows organizations to detect cyberattacks and ensure ongoing compliance with...Rule Medium Severity -
SRG-OS-000033-GPOS-00014
<GroupDescription></GroupDescription>Group -
The Photon operating system must configure sshd to use approved encryption algorithms.
<VulnDiscussion>Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote...Rule Low Severity -
SRG-OS-000037-GPOS-00015
<GroupDescription></GroupDescription>Group -
The Photon operating system must configure auditd to log to disk.
<VulnDiscussion>Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events ...Rule Medium Severity -
SRG-OS-000038-GPOS-00016
<GroupDescription></GroupDescription>Group -
The Photon operating system must configure auditd to use the correct log format.
<VulnDiscussion>To compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know exact, u...Rule Medium Severity -
SRG-OS-000042-GPOS-00020
<GroupDescription></GroupDescription>Group -
The Photon operating system must be configured to audit the execution of privileged functions.
<VulnDiscussion>Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external enti...Rule Medium Severity -
SRG-OS-000042-GPOS-00021
<GroupDescription></GroupDescription>Group -
The Photon operating system must have the auditd service running.
<VulnDiscussion>Event outcomes can include indicators of event success or failure and event-specific results (e.g., the security state of the...Rule Medium Severity -
SRG-OS-000046-GPOS-00022
<GroupDescription></GroupDescription>Group -
The Photon operating system audit log must log space limit problems to syslog.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-OS-000047-GPOS-00023
<GroupDescription></GroupDescription>Group -
The Photon operating system audit log must attempt to log audit failures to syslog.
<VulnDiscussion>It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required....Rule Medium Severity -
SRG-OS-000057-GPOS-00027
<GroupDescription></GroupDescription>Group -
The Photon operating system audit log must have correct permissions.
<VulnDiscussion>Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit ...Rule Medium Severity -
SRG-OS-000058-GPOS-00028
<GroupDescription></GroupDescription>Group -
The Photon operating system audit log must be owned by root.
<VulnDiscussion>Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit ...Rule Medium Severity -
SRG-OS-000059-GPOS-00029
<GroupDescription></GroupDescription>Group -
The Photon operating system audit log must be group-owned by root.
<VulnDiscussion>Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit ...Rule Medium Severity -
SRG-OS-000063-GPOS-00032
<GroupDescription></GroupDescription>Group -
The Photon operating system must allow only the information system security manager (ISSM) (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited.
<VulnDiscussion>Without the capability to restrict the roles and individuals that can select which events are audited, unauthorized personnel...Rule Medium Severity -
SRG-OS-000064-GPOS-00033
<GroupDescription></GroupDescription>Group -
The Photon operating system must generate audit records when successful/unsuccessful attempts to access privileges occur.
<VulnDiscussion>Audit records can be generated from various components within the information system (e.g., module or policy filter). Satisf...Rule Medium Severity -
SRG-OS-000069-GPOS-00037
<GroupDescription></GroupDescription>Group -
The Photon operating system must enforce password complexity by requiring that at least one uppercase character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000070-GPOS-00038
<GroupDescription></GroupDescription>Group -
The Photon operating system must enforce password complexity by requiring that at least one lowercase character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000071-GPOS-00039
<GroupDescription></GroupDescription>Group -
The Photon operating system must enforce password complexity by requiring that at least one numeric character be used.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000072-GPOS-00040
<GroupDescription></GroupDescription>Group -
The Photon operating system must require that new passwords are at least four characters different from the old password.
<VulnDiscussion>Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, ...Rule Medium Severity -
SRG-OS-000073-GPOS-00041
<GroupDescription></GroupDescription>Group -
The Photon operating system must store only encrypted representations of passwords.
<VulnDiscussion>Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are...Rule Medium Severity -
SRG-OS-000074-GPOS-00042
<GroupDescription></GroupDescription>Group -
The Photon operating system must use an OpenSSH server version that does not support protocol 1.
<VulnDiscussion>A replay attack may enable an unauthorized user to gain access to the operating system. Authentication sessions between the a...Rule Medium Severity
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