CVE-2020-5554 in Plus GOOUT
Summary
by MITRE
Directory traversal vulnerability in Shihonkanri Plus GOOUT Ver1.5.8 and Ver2.2.10 allows remote attackers to read and write arbitrary files via unspecified vectors.
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Analysis
by VulDB Data Team • 05/11/2024
The directory traversal vulnerability identified in Shihonkanri Plus GOOUT versions 1.5.8 and 2.2.10 represents a critical security flaw that enables remote attackers to access arbitrary files on the affected system. This vulnerability falls under the Common Weakness Enumeration category CWE-22, which specifically addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The flaw allows unauthorized access to sensitive files and directories that should normally be protected from external inspection or modification.
The technical implementation of this vulnerability occurs through unspecified vectors within the application's file handling mechanisms, where user-supplied input is not properly validated or sanitized before being used in file system operations. Attackers can exploit this weakness by crafting malicious requests that contain directory traversal sequences such as "../" or similar path manipulation techniques to navigate outside the intended directory structure. This allows them to read system files, configuration data, or other sensitive information that should remain restricted to authorized users only.
From an operational impact perspective, this vulnerability presents significant risks to organizations using the affected software versions. Remote attackers can potentially access confidential business data, user credentials, system configurations, or application source code that may contain sensitive information. The ability to both read and write arbitrary files amplifies the threat model, as attackers could not only exfiltrate data but also modify system files, inject malicious code, or compromise the integrity of the application. This vulnerability directly impacts the confidentiality, integrity, and availability of the affected systems, potentially leading to complete system compromise or data breaches.
The exploitation of this vulnerability aligns with techniques documented in the MITRE ATT&CK framework under the T1083 and T1074 tactics, which cover discovery of system information and data staging respectively. Organizations should immediately implement mitigations including input validation and sanitization, proper access controls, and application-level restrictions on file system operations. The recommended approach involves implementing strict path validation mechanisms that prevent traversal sequences from being processed, applying principle of least privilege access controls, and ensuring that all user inputs are properly escaped or filtered before being used in file system operations. Additionally, regular security updates and patches should be applied promptly to address known vulnerabilities, and network segmentation should be implemented to limit potential attack surfaces.