The operating system must use cryptography to protect the confidentiality of remote access sessions.

From VMware ESXi Server 5.0 Security Technical Implementation Guide

Associated with: CCI-000068

SV-51269r1_rule The operating system must use cryptography to protect the confidentiality of remote access sessions.

Vulnerability discussion

Remote network access is accomplished by leveraging common communication protocols and establishing a remote connection. These connections will occur over the public Internet. Remote access is any access to an organizational information system by a user (or an information system) communicating through an external, non-organization-controlled network (e.g., the Internet). Examples of remote access methods include dial-up, broadband, and wireless. Using cryptography ensures confidentiality of the remote access connections.

Check content

Disable lock down mode. Enable the ESXi Shell. Check the SSH daemon configuration for required protocol. # grep -i "Protocol 2" /etc/ssh/sshd_config | grep -v '^#' Re-enable lock down mode. If no lines are returned, or the returned protocol list contains anything except 2, this is a finding.

Fix text

Disable lock down mode. Enable the ESXi Shell. Edit the SSH daemon configuration and add/modify the "Protocol" configuration for Protocol 2 only. # vi /etc/ssh/sshd_config Re-enable lock down mode.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.