CVE-2025-8731
CVE-2025-8731
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- None
- Confidentiality (Vulnerable)
- High
- Integrity (Vulnerable)
- High
- Availability (Vulnerable)
- High
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- None
- Availability (Subsequent)
- None
Description
A vulnerability was identified in TRENDnet TI-G160i, TI-PG102i and TPL-430AP up to 20250724. This affects an unknown part of the component SSH Service. The manipulation leads to use of default credentials. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The vendor explains: "For product TI-PG102i and TI-G160i, by default, the product's remote management options are all disabled. The root account is for troubleshooting purpose and the password is encrypted. However, we will remove the root account from the next firmware release. For product TPL-430AP, the initial setup process requires user to set the password for the management GUI. Once that was done, the default password will be invalid."
Comprehensive Technical Analysis of CVE-2025-8731
1. Vulnerability Assessment and Severity Evaluation
CVE ID: CVE-2025-8731 CVSS Score: 9.8 (Critical)
The vulnerability in TRENDnet devices (TI-G160i, TI-PG102i, and TPL-430AP) allows for the use of default credentials in the SSH Service. This vulnerability is classified as critical due to its high potential for exploitation and the severe impact it can have on affected systems. The CVSS score of 9.8 indicates a high risk, primarily due to the ease of exploitation and the potential for remote attacks.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Remote Exploitation: The vulnerability can be exploited remotely, meaning attackers do not need physical access to the devices.
- Default Credentials: The use of default credentials in the SSH Service allows attackers to gain unauthorized access to the devices.
Exploitation Methods:
- Brute Force Attacks: Attackers can use automated tools to attempt default credentials.
- Credential Stuffing: Using known default credentials to gain access.
- Man-in-the-Middle (MitM) Attacks: Intercepting SSH connections to capture default credentials.
3. Affected Systems and Software Versions
Affected Devices:
- TRENDnet TI-G160i
- TRENDnet TI-PG102i
- TRENDnet TPL-430AP
Affected Software Versions:
- All versions up to 20250724
4. Recommended Mitigation Strategies
Immediate Actions:
- Change Default Credentials: Immediately change the default SSH credentials to strong, unique passwords.
- Network Segmentation: Isolate affected devices from the public internet and place them behind a firewall.
- Monitoring and Logging: Enable logging for SSH connections and monitor for any unauthorized access attempts.
Long-Term Actions:
- Firmware Updates: Regularly check for and apply firmware updates from TRENDnet.
- Access Control: Implement strict access control policies and use multi-factor authentication (MFA) where possible.
- Security Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
5. Impact on Cybersecurity Landscape
The disclosure of this vulnerability highlights the ongoing issue of default credentials in IoT and network devices. The potential for remote exploitation and the critical nature of the vulnerability underscore the need for robust security practices in device management. This incident serves as a reminder for organizations to prioritize security in their device deployment and management strategies.
6. Technical Details for Security Professionals
Vulnerability Details:
- Component Affected: SSH Service
- Vulnerability Type: Use of Default Credentials
- Exploit Availability: The exploit has been disclosed to the public and may be used.
References:
Additional Recommendations:
- Incident Response Plan: Develop and implement an incident response plan specific to this vulnerability.
- User Education: Educate users on the importance of changing default credentials and the risks associated with default settings.
- Vendor Communication: Continue to engage with TRENDnet for updates and patches, despite their initial lack of response.
By addressing this vulnerability promptly and comprehensively, organizations can mitigate the risk of unauthorized access and potential data breaches, ensuring the integrity and security of their network infrastructure.