CVE-2021-20684 in MagazinegerZ
Summary
by MITRE • 04/07/2021
Cross-site scripting vulnerability in MagazinegerZ v.1.01 allows remote attackers to inject an arbitrary script via unspecified vectors.
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Analysis
by VulDB Data Team • 04/11/2021
The vulnerability identified as CVE-2021-20684 represents a cross-site scripting flaw within the MagazinegerZ content management system version 1.01, classified under the Common Weakness Enumeration category CWE-79 which specifically addresses improper neutralization of input during web page generation. This weakness enables attackers to inject malicious scripts into web pages viewed by other users, creating a significant security risk for organizations relying on this platform. The vulnerability exists due to insufficient sanitization of user-supplied input across unspecified vectors within the application's data handling mechanisms, allowing malicious actors to exploit the system through various potential entry points.
The technical exploitation of this XSS vulnerability occurs when an attacker crafts malicious input that gets processed and rendered within the web application without proper validation or encoding. The unspecified vectors suggest that the vulnerability may manifest across multiple input points within the MagazinegerZ interface, potentially including form fields, URL parameters, or other user-controllable data inputs. This lack of specific vector identification indicates either incomplete vulnerability disclosure or that the flaw exists across multiple attack surfaces, making the vulnerability particularly concerning as it could be exploited through various methods. Attackers can leverage this weakness to execute malicious scripts in the context of a victim's browser session, potentially leading to session hijacking, credential theft, or redirection to malicious sites.
The operational impact of CVE-2021-20684 extends beyond simple script injection, as it creates opportunities for more sophisticated attacks within the web application environment. Remote attackers can leverage this vulnerability to steal session cookies, redirect users to phishing sites, deface web pages, or perform actions on behalf of authenticated users. The consequences can include unauthorized access to administrative functions, data exfiltration, and potential compromise of the entire web application infrastructure. Organizations using MagazinegerZ version 1.01 face significant risk of user data exposure and potential system compromise, especially if the application handles sensitive information or user credentials. This vulnerability directly violates the principle of least privilege and can be categorized under the ATT&CK technique T1059.001 for command and scripting interpreter, as attackers can execute arbitrary code within user browsers.
Mitigation strategies for this vulnerability should prioritize immediate patching of the MagazinegerZ application to the latest available version that addresses the XSS flaw. Organizations should implement comprehensive input validation and output encoding mechanisms throughout the application to prevent malicious script execution. The implementation of Content Security Policy headers can provide additional defense-in-depth measures against XSS attacks by restricting script sources and preventing execution of unauthorized code. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities across the entire web application stack. Additionally, implementing web application firewalls and monitoring for suspicious input patterns can help detect and prevent exploitation attempts. The vulnerability highlights the importance of proper input sanitization and output encoding practices as outlined in OWASP Top Ten security guidelines, specifically addressing the need for robust data validation mechanisms that prevent malicious code injection. Organizations should also consider implementing automated security scanning tools to continuously monitor for similar vulnerabilities across their web applications and maintain updated threat intelligence to stay ahead of potential exploitation methods.