CVE-2019-15931 in Solismed
Summary
by MITRE
Intesync Solismed 3.3sp allows Directory Traversal, a different vulnerability than CVE-2019-16246.
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Analysis
by VulDB Data Team • 03/11/2024
The CVE-2019-15931 vulnerability affects the Intesync Solismed 3.3sp system and represents a directory traversal flaw that enables unauthorized access to sensitive files and directories beyond the intended scope of the application. This vulnerability specifically manifests in the system's handling of file paths and input validation mechanisms, allowing attackers to manipulate file access requests through crafted input sequences. The vulnerability operates by exploiting insufficient validation of user-supplied input that is directly used in file system operations without proper sanitization or normalization.
Directory traversal vulnerabilities fall under the Common Weakness Enumeration category CWE-22, which describes weaknesses related to improper handling of file paths that can lead to unauthorized access to files and directories. This particular implementation allows attackers to navigate through the file system hierarchy by using sequences such as "../" or similar path manipulation techniques to access files outside of the intended directory structure. The vulnerability is distinct from CVE-2019-16246, indicating that while both issues involve file access manipulation, they affect different components or implementations within the same product line.
The operational impact of this vulnerability is significant as it can enable attackers to access sensitive system files, configuration data, database contents, and potentially system credentials or authentication tokens. An attacker could leverage this vulnerability to extract proprietary information, gain insights into system architecture, or even escalate privileges if system files containing authentication data are accessible. The vulnerability affects the confidentiality and integrity aspects of the system's security model, potentially allowing unauthorized data access and modification. Given that this is a directory traversal issue, the scope of potential damage extends to any file system resource that the application has access to, including logs, backup files, and application configuration data.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and sanitization mechanisms that prevent path traversal sequences from being processed. The system should normalize all file paths and validate that requested files exist within the intended directory boundaries before processing any file access requests. Implementing a whitelist approach for acceptable file paths and using secure coding practices that prevent direct manipulation of file system operations are essential defensive measures. Additionally, the system should enforce proper access controls and privilege separation to limit the damage that can be caused by successful exploitation attempts. Security monitoring and logging of file access patterns can also help detect and respond to potential exploitation attempts. Organizations should also consider implementing network segmentation and application firewalls to limit access to the vulnerable system and reduce the attack surface. The vulnerability demonstrates the importance of following secure coding practices and proper input validation as outlined in the OWASP Top Ten and other security standards, particularly focusing on preventing path traversal attacks through proper file system access controls and input sanitization.