CVE-2022-41521 Explained : Impact and Mitigation
Discover the details of CVE-2022-41521, an authenticated stack overflow vulnerability in TOTOLINK NR1800X V9.1.0u.6279_B20210910, its impact, technical description, affected systems, and mitigation steps.
A detailed analysis of CVE-2022-41521 focusing on the vulnerability discovered in TOTOLINK NR1800X V9.1.0u.6279_B20210910 related to an authenticated stack overflow.
Understanding CVE-2022-41521
This section delves into the specifics of CVE-2022-41521, highlighting the impact and technical details of the vulnerability.
What is CVE-2022-41521?
The vulnerability involves an authenticated stack overflow in TOTOLINK NR1800X V9.1.0u.6279_B20210910 through the sPort/ePort parameter in the setIpPortFilterRules function.
The Impact of CVE-2022-41521
The presence of this vulnerability could potentially allow an attacker to execute arbitrary code or crash the application, leading to a denial of service.
Technical Details of CVE-2022-41521
This section provides a deeper look into the vulnerability including its description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper handling of the sPort/ePort parameter in the setIpPortFilterRules function, resulting in a stack overflow condition.
Affected Systems and Versions
The affected system is specifically the TOTOLINK NR1800X V9.1.0u.6279_B20210910 version.
Exploitation Mechanism
By exploiting the sPort/ePort parameter in the setIpPortFilterRules function, attackers can trigger the stack overflow, potentially leading to unauthorized code execution.
Mitigation and Prevention
In this section, we discuss the steps to mitigate the CVE-2022-41521 vulnerability and prevent exploitation.
Immediate Steps to Take
Users are advised to update the affected TOTOLINK NR1800X V9.1.0u.6279_B20210910 version with the latest security patches provided by the vendor.
Long-Term Security Practices
Maintaining secure coding practices and conducting regular security audits can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly monitor for updates and security advisories from TOTOLINK to promptly patch any known vulnerabilities before they can be exploited.