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CVE-2023-34992 is a critical OS command injection vulnerability in Fortinet FortiSIEM, affecting the FortiSIEM supervisor component and associated phMonitor service. The flaw arises from improper neutralization of special elements in OS command construction, allowing attacker-controlled input from crafted API requests to reach command execution logic. Public technical reporting describes exploitation through the phMonitor service by sending a crafted handleStorageRequest message that abuses storage-related request handling and results in unauthorized command execution. The issue is remotely reachable and does not require authentication.
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What an attacker gets, and what they’ve been doing with it.
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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.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Unknown
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.
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.