CVE-2017-11155 in Photo Station
Summary
by MITRE
An information exposure vulnerability in index.php in Synology Photo Station before 6.7.3-3432 and 6.3-2967 allows remote attackers to obtain sensitive system information via unspecified vectors.
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Analysis
by VulDB Data Team • 06/23/2024
The vulnerability identified as CVE-2017-11155 represents a critical information exposure flaw within Synology Photo Station software, affecting versions prior to 6.7.3-3432 and 6.3-2967. This issue stems from inadequate input validation and output sanitization mechanisms within the index.php component of the photo station application, creating a pathway for remote attackers to systematically extract sensitive system information from affected installations. The vulnerability manifests through unspecified vectors that likely involve improper handling of user-supplied data or insufficient access controls during system information retrieval processes.
The technical implementation of this flaw demonstrates a classic information disclosure weakness that can be categorized under CWE-200, which specifically addresses the exposure of sensitive information to unauthorized actors. Attackers can exploit this vulnerability to gather system metadata, configuration details, user account information, and potentially other sensitive data that should remain protected within the confines of the system. The attack surface is particularly concerning given that Photo Station serves as a media management platform often deployed in both personal and enterprise environments where such information exposure could lead to further exploitation opportunities. The vulnerability allows for remote information gathering without requiring authentication, making it particularly dangerous as it can be exploited from any location with network access to the affected system.
The operational impact of this vulnerability extends beyond simple information disclosure, as the leaked system information can serve as a foundation for more sophisticated attacks. An attacker who successfully exploits this vulnerability can gain insights into the target system's architecture, software versions, and potentially identify additional weaknesses in the broader network infrastructure. This information exposure creates opportunities for privilege escalation, lateral movement, and targeted attacks against other systems within the same network environment. The vulnerability's remote exploitability means that attackers can leverage it from outside the network perimeter, significantly increasing the attack surface and potential damage scope.
Organizations affected by this vulnerability should prioritize immediate remediation through the application of the vendor-provided patches and updates released in versions 6.7.3-3432 and 6.3-2967. System administrators should conduct comprehensive vulnerability assessments to identify any other potentially affected components within their Synology installations and implement network segmentation measures to limit the potential impact of information exposure. The mitigation strategy should also include monitoring network traffic for suspicious patterns that might indicate exploitation attempts and implementing proper access controls and input validation mechanisms throughout the system. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving information discovery and credential access, making it a critical component in the broader attack chain that could lead to more severe compromise scenarios.