CVE-2020-15080 in PrestaShop
Summary
by MITRE
In PrestaShop from version 1.7.4.0 and before version 1.7.6.6, some files should not be in the release archive, and others should not be accessible. The problem is fixed in version 1.7.6.6 A possible workaround is to make sure `composer.json` and `docker-compose.yml` are not accessible on your server.
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Analysis
by VulDB Data Team • 10/28/2020
The vulnerability identified as CVE-2020-15080 affects PrestaShop e-commerce platforms running versions 1.7.4.0 through 1.7.6.5, representing a critical exposure in the software's release packaging and access control mechanisms. This issue stems from improper file inclusion and accessibility controls within the application's distribution archive, creating potential security risks for affected deployments. The flaw specifically targets the configuration and deployment files that should remain restricted from public access but are instead distributed as part of the standard release package.
The technical nature of this vulnerability involves the inclusion of sensitive configuration files within the PrestaShop release archive that should never be publicly accessible. The composer.json and docker-compose.yml files mentioned in the workaround are particularly concerning as they contain critical system configuration data, dependency specifications, and potentially sensitive deployment information. These files when accessible to unauthorized users can provide attackers with detailed insights into the application's architecture, dependencies, and deployment methodology. The vulnerability aligns with CWE-200, which addresses information exposure, and CWE-352, which covers cross-site request forgery, as the exposed files may contain information that could facilitate further attacks.
The operational impact of CVE-2020-15080 extends beyond simple information disclosure, as these exposed configuration files can significantly aid attackers in planning targeted attacks against the affected systems. The composer.json file reveals the application's dependency tree, version specifications, and potentially sensitive package information that could be exploited to identify known vulnerabilities in third-party components. Meanwhile, the docker-compose.yml file exposes container configuration details, network settings, and deployment strategies that could be leveraged for privilege escalation or lateral movement within the affected infrastructure. This vulnerability can be classified under the ATT&CK technique T1068, which covers 'Exploitation for Privilege Escalation,' as the exposed information can be used to discover system weaknesses and plan more sophisticated attacks.
Organizations running affected PrestaShop versions face significant risks from this vulnerability, particularly in environments where proper access controls have not been implemented to restrict access to these sensitive files. The recommended mitigation strategy involves manually ensuring that composer.json and docker-compose.yml files are not accessible through the web server, typically by implementing proper directory permissions, web server configuration restrictions, or by removing these files from public directories. This workaround directly addresses the root cause by preventing unauthorized access to potentially sensitive configuration data that could otherwise be exploited by attackers. The fix implemented in version 1.7.6.6 demonstrates the importance of proper release management and access control enforcement in preventing information exposure vulnerabilities that could compromise entire systems.
The broader implications of this vulnerability highlight the critical importance of proper release packaging and access control mechanisms in web applications. This issue serves as a reminder that even seemingly benign configuration files can contain sensitive information that, when exposed, can significantly weaken an application's security posture. The vulnerability also underscores the necessity of regular security audits and proper access control implementation, as the exposure of these files could potentially allow attackers to identify other weaknesses in the system's configuration and deployment processes. Organizations should implement comprehensive security measures including regular vulnerability assessments, proper file access controls, and automated monitoring to prevent similar issues from occurring in their environments.