Exchange software must be monitored for unauthorized changes.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-259701 | EX19-MB-000197 | SV-259701r1015279_rule | CCI-003938 | medium |
| Description | ||||
| Monitoring software files for changes against a baseline on a regular basis may help detect the possible introduction of malicious code on a system. | ||||
| STIG | Date | |||
| Microsoft Exchange 2019 Mailbox Server Security Technical Implementation Guide | 2025-05-14 | |||
Related Frameworks
2 paths across 2 frameworks
Related Frameworks
NIST 800-531 mapping
CM-5(1)
1.00
- DISA · V2R3 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
CCI1 mapping
CCI-003938
1.00
- DISA · V2R3 · disa_xccdf · related
Details
Check Text (C-259701r1015279_chk)
Review the Email Domain Security Plan (EDSP).
Determine whether the site monitors system files (e.g., *.exe, *.bat, *.com, *.cmd, and *.dll) on servers for unauthorized changes against a baseline on a weekly basis.
If software files are not monitored for unauthorized changes, this is a finding.
Note: An approved and properly configured solution will contain both a list of baselines that includes all system file locations and a file comparison task that is scheduled to run at least weekly.
Fix Text (F-63348r942416_fix)
Update the EDSP to specify that the organization monitors system files on servers for unauthorized changes against a baseline on a weekly basis or verify that this information is documented by the organization.
Monitor the software files (e.g., *.exe, *.bat, *.com, *.cmd, and *.dll) on Exchange servers for unauthorized changes against a baseline on a weekly basis.
Note: This can be done with the use of various monitoring tools.