Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2025-32878: Critical Vulnerability in COROS PACE 3 Devices Leads to Potential System Compromise

Views: 682

Overview

This blog post will discuss a critical vulnerability discovered in COROS PACE 3 devices, specifically affecting versions up to 3.0808.0. This vulnerability, designated as CVE-2025-32878, presents a significant risk due to its potential to compromise systems and leak sensitive data. As COROS PACE 3 devices are widely used in various sectors, the impact of this vulnerability is widespread, affecting individual users, organizations, and even industries at large. The severity of this issue necessitates immediate attention and mitigation.

Vulnerability Summary

CVE ID: CVE-2025-32878
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Ameeba Chat Icon Share secrets securely

Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.

Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.

  • • Encrypted identity
  • • Private Spaces for organizations and teams
  • • End-to-end encrypted chat, calls, files, and notes
  • • Sensitive AI work and protected collaboration
  • • Built for information that cannot leak

Our mission is to secure human work alongside AI.

Product | Affected Versions

COROS PACE 3 | Up to 3.0808.0

How the Exploit Works

The vulnerability arises from the COROS PACE 3 devices’ firmware download function, which connects the watch to a WLAN. Before downloading firmware files, the watch requests information about the firmware via HTTPS from the back-end API. However, the X.509 server certificate within the TLS handshake is not validated by the device. This leaves room for an attacker, who is in an active machine-in-the-middle position using a TLS proxy and a self-signed certificate, to eavesdrop and manipulate the HTTPS communication. Consequently, the attacker can potentially steal the API access token of the assigned user account.

Conceptual Example Code

In essence, the attacker intercepts the communication between the device and server. A conceptual example could be depicted by the following pseudocode:

// Interception of communication
ATTACKER_MACHINE -> DEVICE:
START TLS HANDSHAKE
DEVICE -> ATTACKER_MACHINE:
SEND CLIENT HELLO
ATTACKER_MACHINE -> DEVICE:
SEND SERVER HELLO, CERTIFICATE (Self-Signed), SERVER HELLO DONE
DEVICE -> ATTACKER_MACHINE:
CLIENT KEY EXCHANGE, CHANGE CIPHER SPEC, ENCRYPTED HANDSHAKE MESSAGE
ATTACKER_MACHINE -> DEVICE:
CHANGE CIPHER SPEC, ENCRYPTED HANDSHAKE MESSAGE
// Communication manipulation
ATTACKER_MACHINE -> BACKEND_API:
GET /firmware/info HTTP/1.1
Authorization: Bearer <API access token>
BACKEND_API -> ATTACKER_MACHINE:
{ "firmware": { "version": "3.0808.0", "url": "..." } }
ATTACKER_MACHINE -> DEVICE:
{ "firmware": { "version": "3.0808.0", "url": "<malicious URL>" } }

This pseudocode demonstrates how the attacker intercepts the TLS handshake, manipulates the HTTPS communication, steals the API token, and potentially redirects the device to download malicious firmware.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

More posts

Ameeba Chat