Description
A vulnerability classified as critical was found in TOTOLINK AC1200 T8 4.1.5cu.861_B20230220. This vulnerability affects unknown code of the file /etc/shadow.sample. The manipulation leads to use of hard-coded password. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
EPSS Score:
1%
Comprehensive Technical Analysis of EUVD-2024-49283
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2024-49283, also known as CVE-2024-8580, is classified as critical with a CVSS base score of 9.2. This high score indicates a severe vulnerability that poses significant risk. The vulnerability involves the use of a hard-coded password in the file /etc/shadow.sample within the TOTOLINK AC1200 T8 firmware version 4.1.5cu.861_B20230220. The attack complexity is high, and the exploitation is considered difficult, but the potential impact is severe, affecting confidentiality, integrity, and availability.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Remote Exploitation: The vulnerability can be exploited remotely, which increases the risk as attackers do not need physical access to the device.
- Network-Based Attacks: Given the nature of the device (a wireless router), attackers could potentially exploit this vulnerability over the network.
Exploitation Methods:
- Password Extraction: An attacker could extract the hard-coded password from the
/etc/shadow.samplefile, which could then be used to gain unauthorized access to the device. - Firmware Analysis: By analyzing the firmware, attackers could identify the hard-coded password and use it to compromise the device.
3. Affected Systems and Software Versions
The vulnerability specifically affects the TOTOLINK AC1200 T8 wireless router running firmware version 4.1.5cu.861_B20230220. Other versions of the firmware or different models may not be affected, but it is advisable to verify this with the vendor.
4. Recommended Mitigation Strategies
Immediate Actions:
- Firmware Update: Immediately update the firmware to a version that addresses this vulnerability. If no update is available, consider disabling remote management features.
- Network Segmentation: Isolate the affected device on a separate network segment to limit potential attack vectors.
- Access Control: Implement strict access controls and monitor for any unauthorized access attempts.
Long-Term Strategies:
- Regular Patching: Ensure that all devices are regularly updated with the latest firmware and security patches.
- Security Audits: Conduct regular security audits and vulnerability assessments to identify and mitigate potential risks.
- Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for suspicious activity.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to European cybersecurity, particularly for organizations and individuals using the affected TOTOLINK AC1200 T8 router. The potential for remote exploitation and the high impact on confidentiality, integrity, and availability make it a critical concern. Organizations should prioritize mitigation efforts to prevent potential breaches and data loss.
6. Technical Details for Security Professionals
Vulnerability Details:
- File Affected:
/etc/shadow.sample - Issue: Use of hard-coded password
- Impact: Unauthorized access, potential data breach, and loss of control over the device
Exploitation Steps:
- Identify Target: Locate the TOTOLINK AC1200 T8 router running the vulnerable firmware version.
- Extract Password: Analyze the firmware to extract the hard-coded password from the
/etc/shadow.samplefile. - Gain Access: Use the extracted password to gain unauthorized access to the device.
Detection and Response:
- Log Analysis: Monitor system logs for any unauthorized access attempts or unusual activity.
- Firmware Integrity Checks: Regularly verify the integrity of the firmware to ensure it has not been tampered with.
- Incident Response Plan: Develop and implement an incident response plan to quickly address any potential breaches.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their networks from potential threats.