FortiSIEM phMonitor Service Command Injection
CVE-2023-34992 is a critical OS command injection vulnerability in Fortinet FortiSIEM, specifically associated with the phMonitor service exposed on TCP port 7900. The issue allows a remote attacker to send crafted API requests to the FortiSIEM supervisor and reach a vulnerable command-execution path. Supporting context indicates exploitation abused a handleStorageRequest message with a malicious server_ip value, resulting in unauthorized command execution. The flaw is described by Fortinet as improper neutralization of special elements used in an OS command.
Are you exposed to this one?
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a proof-of-concept exploit for CVE-2023-34992, a critical unauthenticated command injection vulnerability in Fortinet FortiSIEM appliances. The main exploit file, CVE-2023-34992.py, is a Python script that crafts a malicious XML payload, injecting arbitrary shell commands into the <server_ip> field. The script connects to the Phoenix Monitor service (default port 7900) over SSL/TLS, sends the payload, and receives a response. The exploit is unauthenticated and allows blind command execution as root. The repository also includes a README.md with usage instructions and background information. No hardcoded IPs or domains are present; the target is specified via command-line arguments. The exploit is a standalone POC and not part of a larger framework.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously identified maximum-severity FortiSIEM vulnerability associated with the phMonitor attack surface (mentioned as historical context).
A previously disclosed FortiSIEM vulnerability referenced as part of a history of phMonitor service issues; specific impact details are not provided in the content.
A previously disclosed command injection vulnerability in FortiSIEM’s phMonitor component.
Prior FortiSIEM vulnerability referenced for context only; no technical or exploitation details provided in the content.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.