CVE-2019-20178 in Peel SHOPPING
Summary
by MITRE
Advisto PEEL Shopping 9.2.1 has CSRF via administrer/utilisateurs.php to delete a user.
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Analysis
by VulDB Data Team • 03/20/2024
The vulnerability identified as CVE-2019-20178 affects Advisto PEEL Shopping version 9.2.1 and represents a cross-site request forgery flaw that allows unauthorized deletion of user accounts through the administrative interface. This vulnerability specifically targets the administrer/utilisateurs.php endpoint, which serves as a user management interface for administrators within the e-commerce platform. The flaw exists due to insufficient validation of the origin of requests made to this administrative function, enabling malicious actors to craft specially crafted web pages or links that, when visited by an authenticated administrator, automatically execute user deletion commands without proper user consent or verification.
The technical implementation of this CSRF vulnerability stems from the absence of anti-CSRF tokens or similar protective mechanisms within the administrative user management interface. When an administrator navigates to the administrer/utilisateurs.php page and performs actions such as deleting a user account, the application fails to validate that the request originated from a legitimate administrative session. This allows attackers to embed malicious requests within HTML pages or email attachments that, when executed by an administrator's browser, trigger unauthorized administrative actions. The vulnerability is particularly concerning because it operates at the administrative level, potentially allowing attackers to remove user accounts that could contain sensitive data or represent legitimate customers within the e-commerce ecosystem.
From an operational impact perspective, this vulnerability poses significant risks to both data integrity and business continuity within the affected e-commerce platform. An attacker who successfully exploits this CSRF vulnerability could systematically remove user accounts, potentially disrupting customer access to their orders, personal information, and account credentials. The deletion of user accounts might also compromise the platform's audit trail and customer relationship management systems, as administrators would be unable to track the unauthorized removal of accounts. Furthermore, this vulnerability could be leveraged as part of broader attack campaigns to weaken the platform's user base, potentially leading to service degradation or complete denial of service for legitimate customers who lose access to their accounts.
The vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in software applications, and can be mapped to ATT&CK technique T1190, which covers exploiting vulnerabilities in web applications. Organizations utilizing Advisto PEEL Shopping should implement immediate mitigations including the enforcement of anti-CSRF tokens for all administrative functions, proper validation of request origins, and session management controls that ensure all administrative actions require explicit user confirmation. Additionally, network segmentation and monitoring of administrative interfaces can help detect and prevent unauthorized access attempts. The recommended remediation approach involves updating the application to a version that includes proper CSRF protection mechanisms and implementing comprehensive security testing procedures to identify similar vulnerabilities within the application's administrative interfaces.
This vulnerability demonstrates the critical importance of implementing robust security controls around administrative functions within web applications, as these interfaces often represent the most privileged access points within a system. The ease with which this CSRF attack can be constructed and executed highlights the need for comprehensive security awareness training for developers and administrators, emphasizing that administrative interfaces require additional protective measures beyond standard web application security controls. Organizations should also consider implementing automated security scanning tools that can identify CSRF vulnerabilities during the development lifecycle and establish incident response procedures that account for potential unauthorized administrative actions that could compromise user data integrity and system availability.