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CVE-2025-20265 is a critical command injection vulnerability in the RADIUS subsystem of Cisco Secure Firewall Management Center (FMC) Software. The flaw is caused by improper handling and insufficient sanitization of user-supplied input during the authentication phase. When FMC is configured to use RADIUS for administrative authentication, a remote unauthenticated attacker can submit crafted credential input containing shell metacharacters or command sequences during login processing. The vulnerable device may pass this input to a downstream shell context, resulting in arbitrary shell command execution on the underlying operating system. Cisco states that successful exploitation can lead to execution of attacker-controlled commands at a high privilege level. The vulnerable exposure applies to management access paths using the web-based management interface, SSH management, or both, when backed by RADIUS authentication.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
This repository is a functional exploit (PoC) for CVE-2025-20265, targeting Cisco Secure FMC (Firepower Management Center) systems, specifically version 7.7.0. The exploit is written in Rust and consists of a single main code file (src/main.rs) along with standard Rust project files. The exploit works by attempting to achieve remote code execution (RCE) on the target system. It does so by sending a crafted SSH command to the target, which, if successful, causes the target to make an HTTP request back to the attacker's server (the attacker's IP and port are configurable). This callback confirms successful code execution. The tool supports scanning single targets or multiple targets from a file, and includes logic to detect honeypots and identify the target's version via icon hash. The README provides detailed build and usage instructions, including example commands and configuration notes. The exploit requires the attacker to have a reachable public IP and an open port for callback verification. The code is operational and not just a detection script, as it attempts actual exploitation and provides feedback on success.
This repository is an educational simulation of a management-plane remote command execution (RCE) vulnerability, inspired by a real-world Cisco FMC vulnerability (CVE-2025-20265). The main components are: - server.py: Implements a minimal HTTP server that listens on port 8444 and exposes a /api/config endpoint. If a POST request is made to this endpoint with JSON containing a 'run' key starting with 'CMD:', the server executes the provided shell command and returns the output. This is intentionally unsafe and for lab use only. - entrypoint.sh: Initializes the environment by generating a random flag and writing it to /opt/flag.txt, then starts the server. - exploit.sh: Bash script that sends a crafted POST request to the vulnerable endpoint, allowing the user to execute arbitrary commands (default: 'cat /opt/flag.txt' to retrieve the flag). - Dockerfile: Sets up the environment for running the simulation in a container. The exploit demonstrates the impact of unsafe command parsing in management APIs. The only fingerprintable network endpoint is the HTTP API at /api/config on port 8444. The file /opt/flag.txt is the target for flag-capture in the simulation. The repository is structured for educational use and is not a real-world exploit against Cisco products.
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A remote code execution vulnerability in the RADIUS authentication subsystem of Cisco FMC, mentioned only in related content.
Cisco Secure Firewall Management Center (FMC) RADIUS subsystem RCE allowing unauthenticated remote code execution (per description: injection into RADIUS subsystem).
Critical remote command execution vulnerability in the RADIUS component of Cisco Secure Firewall Management Center caused by improper user input validation during authentication.
Critical unauthenticated remote command injection in Cisco Secure Firewall Management Center (FMC) via crafted credential input processed by the RADIUS authentication subsystem during login, enabling high-privilege command execution when RADIUS is configured for management access.
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