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The vulnerability CVE-2025-54154 is an improper authentication (CWE-287) flaw within QNAP Authenticator mobile app versions prior to 1.3.1.1227. Its operation is defined by a local, physical attack vector. The CVSS 4.0 vector string is AV:P/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:L. This indicates the attack requires Physical access (AV:P) to the mobile device, has Low attack complexity (AC:L), and needs no privileges (PR:N). The attacker must interact with the user interface (UI:P), such as by manipulating the app directly on the unlocked device. The vulnerability’s core failure is in the app’s authentication logic, allowing a threat actor with brief physical control to bypass or subvert identity verification checks. Successful exploitation leads to High impacts on data confidentiality and integrity (VC:H, VI:H), potentially granting the attacker full access to the app’s functionality and the QNAP NAS system it manages. The scope of the attack remains within the security scope of the vulnerable component itself (SC:N/SI:N/SA:N).
Platform: QNAP Authenticator App
Version: Before 1.3.1.1227
Vulnerability : Improper Authentication Bypass
Severity: Medium
date: 2025-10-04
Prediction: 2025-10-04 (Patched)
What Undercode Say:
!/bin/bash Check for vulnerable QNAP Authenticator version on a connected Android device adb shell dumpsys package com.qnap.authenticator | grep versionName Monitor logcat for authentication-related events from the app adb logcat | grep -i "qnap.authenticator.auth"
Pseudo-code illustrating authentication check logic def verify_pin(input_pin, stored_hash): Vulnerability existed here, allowing bypass under specific physical access conditions if not validate_integrity_check(input_pin): Bypass possible return False return bcrypt.verify(input_pin, stored_hash)
How Exploit:
An attacker with brief physical access to an unlocked device running a vulnerable version of QNAP Authenticator can manipulate the app’s interface or local data. This allows them to bypass PIN, biometric, or other local authentication mechanisms without knowing the legitimate credentials. The exploit does not require network access or user privileges, only the ability to interact directly with the application on the compromised device.
Protection from this CVE:
Update QNAP Authenticator to version 1.3.1.1227 or later immediately. Enable full device lock-screen security (strong PIN/password, biometrics) to mitigate the physical access precondition. Do not leave devices unattended and unlocked in untrusted environments. Regularly update all QNAP mobile applications as per vendor recommendations.
Impact:
Full compromise of the QNAP Authenticator app, leading to unauthorized access to linked QNAP NAS systems. Attackers can potentially disable two-factor authentication (2FA), access shared secrets, or approve unauthorized login requests, severely undermining NAS security. This breach of the trusted authentication agent can facilitate further attacks on the NAS data and services.
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Sources:
Reported By: nvd.nist.gov
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