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System log files must not have extended ACLs, except as needed to support authorized software.


Overview

Finding ID Version Rule ID IA Controls Severity
V-227620 GEN001270 SV-227620r603266_rule Medium
Description
If the system log files are not protected, unauthorized users could change the logged data, eliminating its forensic value. Authorized software may be given log file access through the use of extended ACLs when needed and configured to provide the least privileges required.
STIG Date
Solaris 10 X86 Security Technical Implementation Guide 2020-12-04

Details

Check Text ( C-29782r488417_chk )
Verify all system log files have no extended ACLs.

Procedure:
# ls -lL /var/adm
If the permissions include a "+", the file has an extended ACL. If an extended ACL exists, verify with the SA if the ACL is required to support authorized software and provides the minimum necessary permissions. If an extended ACL exists that provides access beyond the needs of authorized software, this is a finding.
Fix Text (F-29770r488418_fix)
Remove the extended ACL from the file.
# chmod A- [file with extended ACL]