The SLES for vRealize must control remote access methods.

From VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide

Part of SRG-OS-000297-GPOS-00115

Associated with: CCI-002314

SV-99305r1_rule The SLES for vRealize must control remote access methods.

Vulnerability discussion

Remote access services, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and make remote user access management difficult at best.Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless.SLES for vRealize functionality (e.g., RDP) must be capable of taking enforcement action if the audit reveals unauthorized activity. Automated control of remote access sessions allows organizations to ensure ongoing compliance with remote access policies by enforcing connection rules of remote access applications on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets).

Check content

Check the SSH daemon configuration for listening network addresses: # grep -i Listen /etc/ssh/sshd_config | grep -v '^#' If no configuration is returned, or if a returned "Listen" configuration contains addresses not designated for management traffic, this is a finding.

Fix text

Edit the SSH daemon configuration with the following command: # sed -i "/^[^#]ListenAddress/ c\ListenAddress = 0.0.0.0" /etc/ssh/sshd_config Replace "0.0.0.0" with the listening network addresses designated for management traffic.

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