CVE-2021-34223 : Security Advisory and Response
Learn about CVE-2021-34223, a critical Cross-site scripting vulnerability in TOTOLINK A3002R version V1.1.1-B20200824. Understand the impact, affected systems, and mitigation steps.
A detailed overview of CVE-2021-34223 focusing on Cross-site scripting vulnerability in TOTOLINK A3002R version V1.1.1-B20200824.
Understanding CVE-2021-34223
This section provides insights into the nature and impact of the CVE-2021-34223 vulnerability.
What is CVE-2021-34223?
CVE-2021-34223 is a Cross-site scripting vulnerability found in urlfilter.htm in TOTOLINK A3002R version V1.1.1-B20200824. This vulnerability allows attackers to execute arbitrary JavaScript by manipulating the "URL Address" input field.
The Impact of CVE-2021-34223
The impact of this vulnerability could lead to unauthorized execution of scripts by attackers, potentially compromising the security and integrity of the affected system.
Technical Details of CVE-2021-34223
In this section, we delve into the technical aspects of the CVE-2021-34223 vulnerability.
Vulnerability Description
The vulnerability resides in the urlfilter.htm page of TOTOLINK A3002R version V1.1.1-B20200824, enabling attackers to inject and execute arbitrary JavaScript code.
Affected Systems and Versions
TOTOLINK A3002R version V1.1.1-B20200824 is confirmed to be affected by this vulnerability.
Exploitation Mechanism
By manipulating the input fields, particularly the "URL Address" field in urlfilter.htm, attackers can exploit this vulnerability to execute malicious scripts.
Mitigation and Prevention
This section highlights the steps to mitigate and prevent the exploitation of CVE-2021-34223.
Immediate Steps to Take
Users and administrators are advised to update to a patched version of TOTOLINK A3002R to mitigate the vulnerability. Additionally, input validation mechanisms can be implemented to prevent script injection attacks.
Long-Term Security Practices
Regular security assessments, proper input sanitization, and security training for developers and users can help enhance the security posture and prevent similar vulnerabilities.
Patching and Updates
Stay abreast of security advisories and updates from TOTOLINK to apply patches promptly and safeguard against potential security risks.