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The ftpusers file must not have an extended ACL.


Overview

Finding ID Version Rule ID IA Controls Severity
V-227860 GEN004950 SV-227860r603266_rule Medium
Description
Excessive permissions on the ftpusers file could permit unauthorized modification. Unauthorized modification could result in Denial of Service to authorized FTP users or permit unauthorized users to access the FTP service.
STIG Date
Solaris 10 X86 Security Technical Implementation Guide 2020-12-04

Details

Check Text ( C-30022r489973_chk )
Check the permissions of the /etc/ftpd/ftpusers file.
# ls -lL /etc/ftpd/ftpusers
If the permissions include a "+", the file has an extended ACL and this is a finding.
Fix Text (F-30010r489974_fix)
Remove the extended ACL from the file.
# chmod A- /etc/ftpd/ftpusers