Description
Plaintext storage of a password issue exists in BUFFALO wireless LAN routers, which may allow a network-adjacent unauthenticated attacker with access to the product's login page may obtain configured credentials.
EPSS Score:
1%
Comprehensive Technical Analysis of EUVD-2024-20984
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2024-20984 pertains to the plaintext storage of passwords in BUFFALO wireless LAN routers. This issue allows an unauthenticated attacker with network access to potentially obtain configured credentials by accessing the product's login page. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:
- Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal skill and resources.
- Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
- Scope (S): Unchanged (U) - The vulnerability does not affect other systems beyond the initial target.
- Confidentiality (C): High (H) - The vulnerability results in a high impact on confidentiality.
- Integrity (I): High (H) - The vulnerability results in a high impact on integrity.
- Availability (A): High (H) - The vulnerability results in a high impact on availability.
2. Potential Attack Vectors and Exploitation Methods
Given the nature of the vulnerability, potential attack vectors include:
- Network Scanning: An attacker could scan the network for BUFFALO wireless LAN routers and attempt to access the login page.
- Man-in-the-Middle (MitM) Attacks: An attacker could intercept network traffic to capture plaintext credentials.
- Credential Stuffing: Once credentials are obtained, the attacker could use them to gain unauthorized access to other systems where the same credentials are used.
3. Affected Systems and Software Versions
The affected systems include various models of BUFFALO wireless LAN routers:
- WSR-2533DHP2 (all versions)
- WSR-2533DHP (all versions)
- WSR-A2533DHP2 (firmware Ver. 1.10 and earlier)
- WSR-2533DHPL (all versions)
- WSR-2533DHP2 (firmware Ver. 1.10 and earlier)
- WSR-2533DHP (firmware Ver. 1.06 and earlier)
- WSR-A2533DHP2 (all versions)
- WSR-2533DHPL (firmware Ver. 1.06 and earlier)
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Firmware Update: Immediately update the firmware of affected routers to the latest version provided by BUFFALO.
- Network Segmentation: Implement network segmentation to isolate critical systems from less secure devices.
- Access Control: Restrict access to the router's login page to trusted IP addresses only.
- Credential Management: Use strong, unique passwords and consider implementing multi-factor authentication (MFA) where possible.
- Monitoring and Logging: Enable logging and monitoring to detect any unauthorized access attempts.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using BUFFALO wireless LAN routers. The potential for unauthorized access to network credentials can lead to data breaches, unauthorized network access, and further exploitation of connected systems. This underscores the importance of timely patch management and robust network security practices.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Detection: Implement network intrusion detection systems (NIDS) to monitor for suspicious activity targeting the router's login page.
- Response: Develop an incident response plan that includes steps for identifying compromised credentials and mitigating further damage.
- Prevention: Regularly audit network devices for vulnerabilities and ensure that all devices are updated with the latest security patches.
- Compliance: Ensure compliance with relevant cybersecurity regulations and standards, such as GDPR, to protect sensitive data.
Conclusion
The vulnerability described in EUVD-2024-20984 is critical and requires immediate attention from organizations and individuals using BUFFALO wireless LAN routers. By implementing the recommended mitigation strategies and maintaining vigilant network security practices, the risk of exploitation can be significantly reduced.
References
Aliases
- CVE-2024-23486
- GSD-2024-23486
Assigner
- JPCERT