CVE-2023-35086 Explained : Impact and Mitigation
Discover the critical format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U routers, allowing remote attackers to execute arbitrary code or disrupt services. Learn about impacts, affected systems, and mitigation steps.
A format string vulnerability has been identified in ASUS RT-AX56U V2 & RT-AC86U routers, allowing remote attackers to execute arbitrary code or disrupt services.
Understanding CVE-2023-35086
This CVE involves a format string vulnerability in ASUS routers that can be exploited by unauthenticated remote attackers to achieve remote arbitrary code execution or disrupt services.
What is CVE-2023-35086?
It is identified a format string vulnerability in ASUS RT-AX56U V2 & RT-AC86U. This vulnerability allows unauthenticated remote attackers to perform remote arbitrary code execution, arbitrary system operation, or disrupt service.
The Impact of CVE-2023-35086
The vulnerability has a base score of 9.8 (Critical) and high impact on confidentiality, integrity, and availability. Attackers can exploit this flaw to execute arbitrary code or disrupt services.
Technical Details of CVE-2023-35086
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability is caused by directly using input as a format string when calling syslog in logmessage_normal function, in the do_detwan_cgi module of httpd, affecting ASUS RT-AX56U V2 & RT-AC86U.
Affected Systems and Versions
- RT-AX56U V2: 3.0.0.4.386_50460
- RT-AC86U: 3.0.0.4_386_51529
Exploitation Mechanism
Remote unauthenticated attackers without privilege can exploit the vulnerability to perform remote arbitrary code execution, arbitrary system operation, or disrupt service.
Mitigation and Prevention
Learn how to protect your systems and networks against this vulnerability.
Immediate Steps to Take
Update firmware versions for the affected ASUS routers to mitigate the vulnerability:
- RT-AX56U V2: 3.0.0.4_386_51598
- RT-AC86U: 3.0.0.4.386_51915
Long-Term Security Practices
Regularly update firmware and implement security best practices to enhance the overall security posture of your network.
Patching and Updates
Stay informed about security patches and updates released by ASUS for their devices to address known vulnerabilities.