The SLES for vRealize must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

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

Associated with: CCI-002450

SV-99343r1_rule The SLES for vRealize must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.

Vulnerability discussion

Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The SLES for vRealize must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated.

Check content

Check the SSH daemon configuration for DoD-approved encryption to protect the confidentiality of SSH remote connections by performing the following commands: Check the Cipher setting in the "sshd_config" file. # grep -i Ciphers /etc/ssh/sshd_config | grep -v '#' The output must contain either none or any number of the following algorithms: aes128-ctr, aes256-ctr. If the output contains an algorithm not listed above, this is a finding. Expected Output: Ciphers aes256-ctr,aes128-ctr

Fix text

Update the Ciphers directive with the following command: # sed -i "/^[^#]*Ciphers/ c\Ciphers aes256-ctr,aes128-ctr" /etc/ssh/sshd_config Save and close the file. Restart the sshd process: # service sshd restart

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.