CVE-2025-54123
CRITICAL EXPLOITED NUCLEIHoverfly < 1.12.0 - Remote Code Execution via Middleware API Endpoint
Title source: llmExploitation Summary
CVE-2025-54123 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 6 public exploits from researchers including kasem545, 0x00phantom-hat, davidzzo23. A Nuclei detection template is also available.
AI-analyzed exploit summary This repository contains a functional Python exploit for CVE-2025-54123, targeting Hoverfly versions <= 1.11.3. The exploit leverages authenticated command injection via the middleware API to achieve remote code execution (RCE).
Description
Hoverfly is an open source API simulation tool. In versions 1.11.3 and prior, the middleware functionality in Hoverfly is vulnerable to command injection vulnerability at `/api/v2/hoverfly/middleware` endpoint due to insufficient validation and sanitization in user input. The vulnerability exists in the middleware management API endpoint `/api/v2/hoverfly/middleware`. This issue is born due to combination of three code level flaws: Insufficient Input Validation in middleware.go line 94-96; Unsafe Command Execution in local_middleware.go line 14-19; and Immediate Execution During Testing in hoverfly_service.go line 173. This allows an attacker to gain remote code execution (RCE) on any system running the vulnerable Hoverfly service. Since the input is directly passed to system commands without proper checks, an attacker can upload a malicious payload or directly execute arbitrary commands (including reverse shells) on the host server with the privileges of the Hoverfly process. Commit 17e60a9bc78826deb4b782dca1c1abd3dbe60d40 in version 1.12.0 disables the set middleware API by default, and subsequent changes to documentation make users aware of the security changes of exposing the set middleware API.
Exploits (6)
This repository contains a functional Python exploit for CVE-2025-54123, targeting Hoverfly versions <= 1.11.3. The exploit leverages authenticated command injection via the middleware API to achieve remote code execution (RCE).
This repository contains a functional exploit for CVE-2025-54123, an authenticated remote code execution vulnerability in Hoverfly ≤ 1.11.3. The exploit leverages OS command injection via the middleware API endpoint, allowing attackers to execute arbitrary commands on the target system.
This repository contains a functional Python exploit for CVE-2025-54123, targeting Hoverfly's middleware API to achieve remote code execution (RCE) via authenticated API requests. The exploit supports both direct command execution and reverse shell payloads.
This repository contains a functional exploit script for CVE-2025-54123, which targets a command injection vulnerability in Hoverfly's middleware endpoint. The script authenticates, checks the target version, and executes arbitrary commands via the 'script' parameter.
This repository contains a functional exploit for CVE-2025-54123, an authenticated RCE vulnerability in HoverFly's middleware API endpoint. The exploit leverages insufficient input validation to execute arbitrary commands via the `binary` and `script` parameters in a PUT request to `/api/v2/hoverfly/middleware`.
This repository contains a functional Python exploit for CVE-2025-54123, which achieves RCE in Hoverfly by injecting a malicious middleware script via the /api/v2/hoverfly/middleware endpoint. The exploit uses a reverse shell payload to establish a connection back to the attacker.
Nuclei Templates (1)
http.favicon.hash:1357234275 || title:"Hoverfly Dashboard"
icon_hash="1357234275" || title="Hoverfly Dashboard"
References (6)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H