Administrative Configuration Audit Trail Truncation during Bulk CLI Commit
Automated configuration backup scripts and CI/CD Ansible playbooks performing rapid concurrent CLI commits cause FortiOS fcnfg to drop individual command event records, creating non-compliance under SOX Section 404 and PCI-DSS 10.2.5.
Technical Root Cause Analysis
Regulatory standards require complete, unalterable audit trails detailing who modified security settings, what commands were issued, and what prior values were overwritten. In FortiOS, configuration changes trigger events LogID 0100044546 (Object configured) and 0100044547 (Attribute changed), emitted by the configuration daemon fcnfg.
Under Bug 0869104, when automated configuration scripts (such as Netmiko routines, Terraform providers, or Ansible playbooks) connect via SSH and commit dozens of policy changes in batch mode without transaction pacing, the internal synchronous logging queue between fcnfg and miglogd saturates. Instead of pausing the commit until logs are acknowledged, fcnfg commits the database changes into flash and silently drops the intermediate command change logs. The audit trail captures only the administrator login and logout records, while omitting the creation of new firewall policies, modification of VIPs, or disabling of IPS signatures. External SOX 404 auditors evaluate this as unauthorized, unmonitored administrative activity.
Affected Firmware & Blast Radius Matrix
| FortiOS Branch | Vulnerable Builds | Confirmed Clean Build | Status & Workaround |
|---|---|---|---|
| FortiOS 7.2 | 7.2.1 – 7.2.5 | 7.2.6+ | Rate-limit automation commits, switch to REST API |
| FortiOS 7.4 | 7.4.0 – 7.4.1 | 7.4.2+ | Upgrade recommended or throttle scripts |
| FortiOS 7.0 | Not Affected | 7.0.x Branch Clean | Legacy serial commit avoids buffer overrun |
Platform Impact: All multi-administrator enterprise FortiGates managed via automated NetDevOps pipelines, Ansible, or central management platforms.
Step 01: Free Verification CLI (Safe Read-Only)
Check your firewall's event logs to determine whether recent administrative change events have missing command parameters:
Diagnostic Commands
# 1. Inspect recent configuration change events in the event log
execute log filter category 1
execute log display | grep -E "logid=0100044546|0100044547"
# 2. Check active administrator accounts and automation API users
show system admin
show system api-user
# 3. View fcnfg daemon logging status and queue counters
diagnose test application miglogd 6
# 4. Filter system event log for dropped configuration records
diagnose log kernel-log | grep -i "fcnfg"Remediation & Workaround Steps (Teaser Preview)
Follow the complete step-by-step remediation guide in the Ferrite interactive platform:
Frequently Asked Questions
When automation tools execute hundreds of CLI commands within seconds, the configuration parser (fcnfg) batches changes into an internal event ring buffer. Under Bug 0869104, rapid concurrent commits overrun the 64KB log payload staging area, causing fcnfg to omit specific command arguments and attribute diffs, logging only a generic notice.
Sarbanes-Oxley (SOX) Section 404, PCI-DSS v4.0 Requirement 10.2.5, and NIST SP 800-53 CM-5 require that all modifications to security parameters, firewall policies, and user accounts be recorded with the identity of the administrator and exact changes made.
The issue is resolved in FortiOS 7.2.6, 7.4.2, and 7.6.0 where the fcnfg logging buffer was decoupled from synchronous command commit threads.