CVE-2023-34358 : Security Advisory and Response
Learn about CVE-2023-34358, a high-severity vulnerability in ASUS RT-AX88U routers that allows unauthenticated DoS attacks. Find out the impact, affected systems, and steps to mitigate.
A detailed article outlining the CVE-2023-34358 vulnerability affecting ASUS RT-AX88U routers, including the impact, technical details, and mitigation steps.
Understanding CVE-2023-34358
This section provides an overview of the vulnerability identified as CVE-2023-34358 affecting ASUS RT-AX88U devices.
What is CVE-2023-34358?
CVE-2023-34358 pertains to an unauthenticated Denial of Service (DoS) vulnerability in the httpd service of ASUS RT-AX88U routers. It allows a remote attacker to crash the httpd binary by sending a specially crafted request with a specific user agent, resulting in a DoS condition.
The Impact of CVE-2023-34358
The vulnerability's impact is rated as HIGH, with a base severity score of 7.5. It can lead to a DoS condition, affecting the availability of the affected device.
Technical Details of CVE-2023-34358
In this section, we delve into the technical aspects of CVE-2023-34358 vulnerability affecting ASUS RT-AX88U routers.
Vulnerability Description
The vulnerability arises due to a flaw in the httpd service that fails during a string comparison operation within web.c, triggered by a malicious request with a specific user agent.
Affected Systems and Versions
ASUS RT-AX88U routers running firmware versions less than or equal to 3.0.0.4.388_22525-gd35b8fe are vulnerable to this exploit.
Exploitation Mechanism
Exploiting CVE-2023-34358 involves sending a specially crafted request to the target ASUS RT-AX88U device containing a specific user agent string, causing the httpd binary to crash.
Mitigation and Prevention
This section outlines the steps to mitigate and prevent the exploitation of CVE-2023-34358 in ASUS RT-AX88U routers.
Immediate Steps to Take
Users are advised to update the firmware of their ASUS RT-AX88U routers to version 3.0.0.4_388_23748 or later to address the vulnerability.
Long-Term Security Practices
Apart from immediate updates, ensuring regular firmware updates and proactive security monitoring can help prevent future vulnerabilities.
Patching and Updates
Regularly check for firmware updates from ASUS and apply them promptly to ensure the security of the router.