Full Report
At the beginning of this year I spent a week finding several vulnerabilities in various “bloatware” software. This was after I got suspicious of how my ASUS motherboard’s “DriverHub” behaved. In the end I looked at 6 targets from 6 random vendors (apart from ASUS) and found vulnerabilities ranging from Remote Code Execution to Local Privilege Escalation in all of them. Those were: ASUS, Acer, Lenovo, HP, MSI and Razer.
Analysis Summary
The provided text describes a security audit performed on several hardware vendor "bloatware" applications, resulting in multiple vulnerabilities across ASUS, Acer, Lenovo, HP, MSI, and Razer products. Since the article only lists the CVEs and high-level descriptions, detailed severity scores and specific affected versions/patches are often inferred or generalized.
Here is the summary structured by the vulnerabilities described:
# Vulnerability: Razer Privilege Escalation via Service
## CVE Details
- CVE ID: CVE-2025-27811
- CVSS Score: *Not explicitly provided* (Severity inferred: High due to LPE)
- CWE: *Not explicitly provided*
## Affected Systems
- Products: Razer Synapse/Related services
- Versions: *Not specified*
- Configurations: *Not specified*
## Vulnerability Description
Local Privilege Escalation (LPE) found in the `razer_elevation_service.exe`. This implies the service runs with elevated privileges but incorrectly handles requests or inputs from lower-privileged users, allowing escalation.
## Exploitation
- Status: PoC available (The article directs to a GitHub repository for PoCs)
- Complexity: *Not explicitly provided*
- Attack Vector: Local
## Impact
- Confidentiality: Potential impact
- Integrity: High impact (Allows unauthorized system changes)
- Availability: Potential impact
## Remediation
### Patches
- *Details not provided in text.*
### Workarounds
- *Details not provided in text.*
## Detection
- *Details not provided in text.*
## References
- [Exploit PoC Repo](https://github.com/sensepost/bloatware-pwn)
***
# Vulnerability: Acer LPE via Unprotected Named Pipe
## CVE Details
- CVE ID: CVE-2025-5491
- CVSS Score: *Not explicitly provided* (Severity inferred: High due to LPE)
- CWE: *Not explicitly provided* (Likely related to insecure service communication)
## Affected Systems
- Products: Acer Control Center components
- Versions: *Not specified*
- Configurations: Relies on the use of an unprotected Windows Named Pipe.
## Vulnerability Description
Local Privilege Escalation (LPE) achieved by interacting with an unprotected Windows Named Pipe exposed by the Acer software.
## Exploitation
- Status: PoC available
- Complexity: *Not explicitly provided*
- Attack Vector: Local
## Impact
- Confidentiality: Potential impact
- Integrity: High impact
- Availability: Potential impact
## Remediation
### Patches
- *Details not provided in text.*
### Workarounds
- *Details not provided in text.*
## Detection
- *Details not provided in text.*
## References
- [Exploit PoC Repo](https://github.com/sensepost/bloatware-pwn)
***
# Vulnerability: Acer Privileged RCE via Misconfigured Named Pipe
## CVE Details
- CVE ID: *No separate CVE listed, bundled with CVE-2025-5491*
- CVSS Score: *Not explicitly provided* (Severity inferred: Critical due to RCE)
- CWE: *Not explicitly provided* (Related to the misconfigured Named Pipe)
## Affected Systems
- Products: Acer Control Center components
- Versions: *Not specified*
- Configurations: Exploits the same Named Pipe as CVE-2025-5491, but leverages it for code execution.
## Vulnerability Description
Remote Code Execution (RCE) achievable because the same Named Pipe used for LPE was misconfigured, allowing for direct code execution under elevated (privileged) context.
## Exploitation
- Status: PoC available
- Complexity: *Not explicitly provided*
- Attack Vector: Local (Though described as RCE, the context suggests local user execution of privileged code)
## Impact
- Confidentiality: High impact
- Integrity: High impact
- Availability: High impact
## Remediation
### Patches
- *Details not provided in text.*
### Workarounds
- *Details not provided in text.*
## Detection
- *Details not provided in text.*
## References
- [Exploit PoC Repo](https://github.com/sensepost.com/bloatware-pwn)
***
# Vulnerability: MSI Time-of-Create Time-of-Use (TOCTOU) Leading to Privilege Escalation
## CVE Details
- CVE ID: CVE-2025-27812
- CVSS Score: *Not explicitly provided* (Severity inferred: High due to LPE)
- CWE: CWE-362 (Race Condition)
## Affected Systems
- Products: MSI Center components
- Versions: *Not specified*
- Configurations: *Not specified*
## Vulnerability Description
A Time-of-Create, Time-of-Use (TOCTOU) race condition vulnerability existed, allowing a low-privileged attacker to manipulate file system objects between the time they were checked (creation) and the time they were used by the privileged component, leading to Privilege Escalation.
## Exploitation
- Status: PoC available
- Complexity: *Medium to High* (Race conditions often require precise timing)
- Attack Vector: Local
## Impact
- Confidentiality: Potential impact
- Integrity: High impact
- Availability: Potential impact
## Remediation
### Patches
- *Details not provided in text.*
### Workarounds
- *Details not provided in text.*
## Detection
- *Details not provided in text.*
## References
- [Exploit PoC Repo](https://github.com/sensepost/bloatware-pwn)
***
# Vulnerability: MSI Lack of PE Signature Validation Leading to Privilege Escalation
## CVE Details
- CVE ID: CVE-2025-27813
- CVSS Score: *Not explicitly provided* (Severity inferred: High due to LPE)
- CWE: CWE-119: Improper Input Validation (or CWE-451: Use of Externally-Controlled Reference to a File or Path)
## Affected Systems
- Products: MSI Center components
- Versions: *Not specified*
- Configurations: *Not specified*
## Vulnerability Description
The software lacked proper validation of Portable Executable (PE) file signatures when loading or executing binaries, allowing an attacker to substitute a malicious executable to gain elevated privileges.
## Exploitation
- Status: PoC available
- Complexity: *Not explicitly provided*
- Attack Vector: Local
## Impact
- Confidentiality: Potential impact
- Integrity: High impact
- Availability: Potential impact
## Remediation
### Patches
- *Details not provided in text.*
### Workarounds
- *Details not provided in text.*
## Detection
- *Details not provided in text.*
## References
- [Exploit PoC Repo](https://github.com/sensepost/bloatware-pwn)
***
# Vulnerability: ASUS Insufficient Origin Header Validation (Local Web Service)
## CVE Details
- CVE ID: CVE-2025-3462
- CVSS Score: *Not explicitly provided* (Severity inferred: Medium/High, as it enables the next RCE flaw)
- CWE: CWE-346: Origin Validation Error
## Affected Systems
- Products: ASUS DriverHub (exposing a web server on localhost)
- Versions: *Not specified*
- Configurations: Requires the DriverHub utility to be running locally.
## Vulnerability Description
ASUS DriverHub exposed a local web server accessible via localhost that communicated with the browser helper application. This endpoint suffered from insufficient validation of the HTTP Origin header, allowing arbitrary local web pages (or any process able to bind to localhost) to invoke privileged commands (like installing updates or rebooting the machine).
## Exploitation
- Status: PoC available
- Complexity: *Low* (Leveraging browser interaction or a simple local script)
- Attack Vector: Local (via localhost/127.0.0.1)
## Impact
- Confidentiality: Potential impact
- Integrity: High impact (Ability to trigger system operations like reboot or software install)
- Availability: High impact (Ability to trigger system reboot)
## Remediation
### Patches
- *Details not provided in text.* (Implies fixing the validation logic)
### Workarounds
- Uninstalling/Disabling DriverHub.
## Detection
- Look for network traffic or requests targeting `localhost` ports associated with ASUS utilities.
- Monitoring for unexpected system reboots initiated by browser/local service interaction.
## References
- [Exploit PoC Repo](https://github.com/sensepost/bloatware-pwn)
- [DEF CON 33 Talk](https://www.youtube.com/watch?v=zSBf2CMKlBk) (Defanged URL)
***
# Vulnerability: ASUS Insufficient PE Signature Validation Leading to RCE
## CVE Details
- CVE ID: CVE-2025-3463
- CVSS Score: *Not explicitly provided* (Severity inferred: Critical due to RCE)
- CWE: CWE-119: Improper Input Validation (related to file loading/execution)
## Affected Systems
- Products: ASUS DriverHub
- Versions: *Not specified*
- Configurations: This vulnerability is coupled with CVE-2025-3462 (Local Web Service flaw) to achieve RCE.
## Vulnerability Description
This vulnerability involves insufficient validation of Portable Executable (PE) file signatures, similar to the MSI finding. When combined with the accessible local web server (CVE-2025-3462), an attacker could instruct the privileged service via the vulnerable web interface to load and execute a malicious, unsigned binary, resulting in Remote Code Execution (RCE) under the service's context.
## Exploitation
- Status: PoC available
- Complexity: *Medium* (Requires chaining two vulnerabilities)
- Attack Vector: Local (via localhost interaction)
## Impact
- Confidentiality: High impact
- Integrity: High impact
- Availability: High impact
## Remediation
### Patches
- *Details not provided in text.* (Implies patching the signature validation and the Origin header check)
### Workarounds
- Uninstalling/Disabling DriverHub.
## Detection
- Look for unauthorized execution of suspicious PE files loaded by the DriverHub service components.
## References
- [Exploit PoC Repo](https://github.com/sensepost/bloatware-pwn)
***
## General Context Summary (Applicable to HP and Lenovo)
The research identified similar vulnerabilities across **HP** and **Lenovo** utilities as well, specifically noting Lenovo Vantage utilizes an RPC mechanism with a vulnerable validation flow (patching out PID validation was necessary for testing). Although specific CVEs for HP and Lenovo were not detailed in the snippet, the research confirms a pattern known as the "PWN Triad" exists in bloatware:
1. **Elevated/Privileged service/component.**
2. **RPC mechanism (RPC/Named Pipe/COM/etc.).**
3. **Broken authentication/validation flow.**
**General Mitigation Strategy:** Uninstalling the 'bloatware' is recommended if it is not essential for core system function.