CVE-2024-46662: Fortinet FortiManager Privilege Escalation

CVE-2024-46662 Overview

CVE-2024-46662 is a command injection vulnerability affecting Fortinet FortiManager and FortiManager Cloud. The flaw stems from improper neutralization of special elements used in a command [CWE-77]. Authenticated attackers can send specifically crafted packets to escalate privileges on the affected appliance. The vulnerability impacts FortiManager versions 7.4.1 through 7.4.3 and FortiManager Cloud versions 7.4.1 through 7.4.3. Fortinet published guidance in the FortiGuard Security Advisory FG-IR-24-222.

Critical Impact
An authenticated attacker with low privileges can execute arbitrary commands and escalate privileges on FortiManager, gaining control over centrally managed Fortinet infrastructure.

Affected Products

Fortinet FortiManager versions 7.4.1 through 7.4.3
Fortinet FortiManager Cloud versions 7.4.1 through 7.4.3
Deployments centrally managing FortiGate and other Fortinet devices

Discovery Timeline

2025-03-14 - CVE-2024-46662 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-46662

Vulnerability Analysis

The vulnerability resides in FortiManager's handling of packet content that flows into command execution logic. FortiManager fails to neutralize special shell metacharacters before passing input into a command context. An attacker with valid low-privilege credentials can craft packets that inject additional commands into the underlying execution path. Successful exploitation results in privilege escalation on the management appliance itself.

FortiManager centrally administers fleets of Fortinet security devices. Compromise of the manager platform therefore extends attacker reach into policy, configuration, and telemetry across every managed device. The attack surface is network-reachable, and exploitation does not require user interaction.

Root Cause

The root cause is insufficient input sanitization on fields that are eventually interpolated into a command string. Because the affected code path constructs commands from attacker-controllable input without escaping shell metacharacters such as ;, &, |, and backticks, injected payloads execute in the context of the FortiManager service process. This mapping to [CWE-77] reflects the classic command injection pattern rather than a memory-safety flaw.

Attack Vector

Exploitation requires network access to the FortiManager management service and valid authenticated credentials at a low privilege level. The attacker submits crafted packets containing embedded command sequences. The service processes the malicious input and executes the injected command with elevated privileges. Refer to the FortiGuard Security Advisory for the affected protocol details.

No public proof-of-concept exploit code is currently available. The EPSS probability of 2.23% (81st percentile) indicates measurable exploitation interest relative to the broader CVE population.

Detection Methods for CVE-2024-46662

Indicators of Compromise

Unexpected child processes spawned by FortiManager service accounts, particularly shells or system utilities such as sh, bash, or busybox.
Anomalous management-plane packets containing shell metacharacters (;, |, &, `, $()).
Unexpected privilege changes, new administrative accounts, or modified admin profiles within FortiManager audit logs.
Outbound connections from the FortiManager appliance to unfamiliar hosts following authenticated sessions.

Detection Strategies

Monitor FortiManager authentication logs for low-privilege accounts issuing unusual API or protocol commands.
Correlate management-plane traffic captures against baseline packet structures to surface malformed or oversized fields.
Alert on any privilege-elevation event in FortiManager audit trails that lacks a corresponding legitimate change request.

Monitoring Recommendations

Forward FortiManager syslog and audit events to a centralized SIEM for retention and correlation.
Restrict management-plane access to a dedicated administrative network segment and monitor all traffic to that segment.
Baseline outbound network activity from FortiManager appliances and alert on deviations.

How to Mitigate CVE-2024-46662

Immediate Actions Required

Upgrade FortiManager and FortiManager Cloud to a fixed release as listed in the FortiGuard Security Advisory FG-IR-24-222.
Rotate all administrator and API credentials on FortiManager appliances following the upgrade.
Audit administrator accounts and remove any unrecognized or unused low-privilege users that could be leveraged for authenticated exploitation.
Review recent configuration changes and managed-device policies for unauthorized modifications.

Patch Information

Fortinet has released fixed builds addressing CVE-2024-46662. Administrators running FortiManager 7.4.1, 7.4.2, or 7.4.3, or FortiManager Cloud 7.4.1 through 7.4.3, must upgrade to a version identified as fixed in FG-IR-24-222. Verify the running version with get system status before and after the upgrade.

Workarounds

Restrict management-plane access using trusted host lists so only known administrative IP addresses can reach FortiManager services.
Enforce multi-factor authentication for every FortiManager administrator account to raise the cost of credentialed access.
Isolate FortiManager appliances behind a jump host and block direct exposure to untrusted networks until patches are applied.

bash

# Configuration example: restrict management access to trusted hosts
config system admin
    edit "admin"
        set trusthost1 10.10.10.0 255.255.255.0
        set trusthost2 192.168.100.0 255.255.255.0
    next
end