CVE-2014-4919 in eShop
Summary
by MITRE
OXID eShop Professional Edition before 4.7.13 and 4.8.x before 4.8.7, Enterprise Edition before 5.0.13 and 5.1.x before 5.1.7, and Community Edition before 4.7.13 and 4.8.x before 4.8.7 allow remote attackers to assign users to arbitrary dynamical user groups.
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Analysis
by VulDB Data Team • 12/25/2019
The vulnerability identified as CVE-2014-4919 represents a critical access control flaw within the OXID eShop platform, affecting multiple editions including Professional, Enterprise, and Community variants. This issue stems from insufficient validation of user group assignments within the dynamic user group functionality, creating a path for remote attackers to manipulate user permissions and access controls. The vulnerability specifically impacts versions prior to 4.7.13, 4.8.7, 5.0.13, and 5.1.7, indicating a widespread exposure across different release branches of the eShop software. The flaw allows unauthorized actors to assign legitimate users to arbitrary dynamic user groups, potentially granting them elevated privileges or access to restricted resources.
The technical implementation of this vulnerability lies in the lack of proper input sanitization and authorization checks when processing user group assignment requests. When users are assigned to dynamic groups, the system fails to validate whether the assignment is legitimate or if the attacker has proper authorization to make such modifications. This weakness creates a privilege escalation vector where remote attackers can manipulate the user group membership of authenticated users without proper authentication or authorization. The flaw operates at the application level within the user management subsystem, specifically affecting the dynamic group assignment functionality that should only be accessible to administrators or authorized personnel.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential data breaches, unauthorized access to sensitive information, and compromise of user accounts. Attackers could leverage this vulnerability to gain access to customer data, financial information, or administrative functions within the eShop environment. The remote nature of the attack means that exploitation does not require physical access to the system or local network presence, making it particularly dangerous for online retail platforms handling sensitive customer information. This vulnerability could enable attackers to manipulate user access rights, potentially allowing them to view or modify customer records, process orders, or access restricted administrative functions.
The vulnerability maps to CWE-285, which addresses insufficient authorization within software systems, and aligns with ATT&CK techniques related to privilege escalation and lateral movement within compromised environments. Organizations using affected OXID eShop versions face significant risk of unauthorized access and potential data compromise. The impact is particularly severe given that eShop platforms typically handle sensitive customer information, payment data, and business-critical commerce operations. Security practitioners should consider this vulnerability as part of broader access control assessments and implement immediate mitigations through version upgrades. The recommended remediation involves upgrading to the patched versions 4.7.13, 4.8.7, 5.0.13, and 5.1.7, which include proper input validation and authorization checks for dynamic user group assignments. Additionally, organizations should review their current user group configurations and implement monitoring for unauthorized group assignment activities.