CVE-2019-7929 in Magento
Summary
by MITRE
An information leakage vulnerability exists in Magento 2.1 prior to 2.1.18, Magento 2.2 prior to 2.2.9, Magento 2.3 prior to 2.3.2. An authenticated user with administrator privileges may be able to view metadata of a trusted device used by another administrator via a crafted http request.
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Analysis
by VulDB Data Team • 07/20/2020
This vulnerability represents a critical information disclosure flaw affecting multiple versions of the Magento e-commerce platform. The issue stems from insufficient access controls within the administrative interface, specifically in how the system handles requests related to trusted device metadata. An attacker with administrator-level credentials can exploit this weakness to gain unauthorized access to sensitive information about other administrator accounts' trusted devices. The vulnerability exists because the application fails to properly validate and restrict access to device metadata endpoints, allowing privilege escalation through crafted http requests.
The technical implementation of this flaw involves the application's failure to enforce proper authentication checks when processing requests for trusted device information. When an authenticated administrator makes a request to retrieve metadata about trusted devices, the system does not adequately verify whether the requesting user has legitimate authorization to access that specific device information. This misconfiguration creates an information leakage pathway where administrative privileges can be leveraged to enumerate and access metadata from other administrator accounts. The vulnerability is particularly concerning because it operates within the administrative context, where users already possess elevated privileges, making the information disclosure potentially more damaging. According to the CWE database, this maps to CWE-200: Information Exposure, specifically related to insufficient access control mechanisms and improper privilege validation.
The operational impact of this vulnerability extends beyond simple information leakage, as it can facilitate further exploitation attempts within the Magento environment. An attacker who successfully exploits this vulnerability could potentially gather intelligence about other administrator accounts, including device fingerprints, authentication patterns, and access history. This metadata could then be used to craft more sophisticated attacks or to identify additional targets within the administrative infrastructure. The vulnerability affects organizations running vulnerable Magento versions, particularly those with multiple administrator accounts where device trust relationships are established. The risk is amplified in environments where administrators use trusted devices for authentication, as the leaked metadata could provide insights into the security posture of the administrative infrastructure. From an ATT&CK framework perspective, this vulnerability aligns with T1078 Valid Accounts and T1552 Unsecured Credentials, as it enables unauthorized access to privileged accounts through legitimate administrative access.
Organizations should immediately implement the vendor-provided security patches for Magento 2.1.18, 2.2.9, and 2.3.2 to address this vulnerability. The patch resolves the access control issue by implementing proper validation of administrative privileges when accessing trusted device metadata. Additionally, organizations should review their administrative access controls and implement principle of least privilege where possible. Network segmentation and monitoring of administrative access patterns can help detect potential exploitation attempts. Security teams should also conduct comprehensive audits of trusted device configurations and ensure that administrative accounts are properly secured with strong authentication mechanisms. Regular security assessments of the Magento platform should include verification of access control implementations and proper validation of administrative privileges across all endpoints. The vulnerability highlights the importance of maintaining current security patches and proper access control implementations in web applications.