CVE-2021-37316 Explained : Impact and Mitigation
Learn about CVE-2021-37316, a SQL injection vulnerability in ASUS RT-AC68U router firmware allowing remote attackers to access sensitive information. Find out mitigation steps.
A SQL injection vulnerability in Cloud Disk in ASUS RT-AC68U router firmware version before 3.0.0.4.386.41634 allows remote attackers to view sensitive information via /etc/shadow.
Understanding CVE-2021-37316
This section will cover the details of CVE-2021-37316.
What is CVE-2021-37316?
CVE-2021-37316 is a SQL injection vulnerability found in the Cloud Disk feature of ASUS RT-AC68U router firmware versions prior to 3.0.0.4.386.41634. This vulnerability enables remote attackers to access sensitive information stored in /etc/shadow.
The Impact of CVE-2021-37316
The impact of CVE-2021-37316 is significant as it allows unauthorized users to view confidential data on the affected ASUS router.
Technical Details of CVE-2021-37316
In this section, we will delve into the technical aspects of CVE-2021-37316.
Vulnerability Description
The vulnerability arises due to improper input validation in the Cloud Disk component, leading to SQL injection, which can be exploited by attackers to access the /etc/shadow file.
Affected Systems and Versions
ASUS RT-AC68U router firmware versions prior to 3.0.0.4.386.41634 are affected by this vulnerability.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by injecting malicious SQL queries via the Cloud Disk feature to gain unauthorized access to sensitive data.
Mitigation and Prevention
To safeguard against CVE-2021-37316, immediate actions and long-term security measures need to be implemented.
Immediate Steps to Take
It is recommended to update the ASUS RT-AC68U router firmware to version 3.0.0.4.386.41634 or newer to mitigate this vulnerability. Additionally, restrict access to sensitive directories to minimize the risk of unauthorized access.
Long-Term Security Practices
Regularly monitor for security updates from ASUS and apply patches promptly to ensure that known vulnerabilities are addressed in a timely manner. Conduct security audits to identify and mitigate potential risks in the network infrastructure.
Patching and Updates
Frequently check for firmware updates released by ASUS for the RT-AC68U router and apply them as soon as they are available to enhance the security posture of the device.