CVE-2018-13295 in Application Service
Summary
by MITRE
Information exposure vulnerability in SYNO.Personal.Application.Info in Synology Application Service before 1.5.4-0320 allows remote authenticated users to obtain sensitive system information via the version parameter.
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Analysis
by VulDB Data Team • 08/21/2023
The vulnerability identified as CVE-2018-13295 represents an information exposure flaw within Synology's Application Service component, specifically affecting the SYNO.Personal.Application.Info module. This issue exists in versions prior to 1.5.4-0320 and manifests as a security weakness that enables remote authenticated attackers to extract sensitive system information through manipulation of the version parameter. The flaw resides in the application service's handling of user requests, where proper input validation and access control mechanisms are insufficiently implemented to prevent unauthorized information disclosure.
The technical implementation of this vulnerability stems from inadequate parameter validation within the SYNO.Personal.Application.Info service. When a remote authenticated user submits a request containing a crafted version parameter, the system fails to properly sanitize or restrict the input, allowing the attacker to probe system internals and extract version information that should remain confidential. This type of vulnerability aligns with CWE-200, which categorizes information exposure issues where sensitive data is unintentionally made available to unauthorized actors. The flaw operates at the application layer and demonstrates a classic case of insufficient input validation that permits information leakage through parameter manipulation.
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. Attackers can use the disclosed version information to identify potential exploits specific to the targeted Synology system, enabling them to conduct targeted attacks against known vulnerabilities in the identified software versions. This information exposure creates a reconnaissance opportunity that aligns with ATT&CK technique T1082, which involves discovering information about the target system. The vulnerability affects the confidentiality aspect of the CIA triad, as it allows unauthorized access to system metadata that should remain protected within the organization's internal infrastructure.
Mitigation strategies for CVE-2018-13295 require immediate implementation of the vendor-provided patch version 1.5.4-0320, which addresses the information exposure through proper input validation and access control enforcement. Organizations should also implement network segmentation to limit access to Synology services, enforce strong authentication mechanisms, and conduct regular security assessments to identify similar vulnerabilities in other system components. The remediation process should include comprehensive testing to ensure that the patch does not introduce compatibility issues with existing applications while maintaining the security improvements. Additionally, organizations should establish monitoring procedures to detect unusual access patterns that might indicate exploitation attempts and maintain up-to-date threat intelligence to understand potential attack vectors targeting vulnerable Synology systems.