The AIX SSH daemon must not allow compression.
An XCCDF Rule
Description
If compression is allowed in an SSH connection prior to authentication, vulnerabilities in the compression software could result in compromise of the system from an unauthenticated connection, potentially with root privileges.
- ID
- SV-215296r991589_rule
- Version
- AIX7-00-002113
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
Edit the "/etc/ssh/sshd_config" file and add (or modify) the following line:
Compression no
Restart the SSH daemon:
# stopsrc -s sshd
# startsrc -s sshd