CVE-2020-5555 in Plus GOOUT
Summary
by MITRE
Shihonkanri Plus GOOUT Ver1.5.8 and Ver2.2.10 allows remote attackers to read and write data of the files placed in the same directory where it is placed via unspecified vector due to the improper input validation issue.
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Analysis
by VulDB Data Team • 05/11/2024
The vulnerability identified as CVE-2020-5555 affects Shihonkanri Plus GOOUT versions 1.5.8 and 2.2.10, representing a critical security flaw that enables remote attackers to manipulate files within the same directory as the application. This issue stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. The vulnerability manifests through an unspecified attack vector that allows adversaries to both read and write data to files located in the application's directory structure, creating a significant risk for data confidentiality and integrity. The improper input validation creates a path traversal condition where attacker-controlled inputs can be used to access unauthorized file system resources.
The technical exploitation of this vulnerability leverages the application's failure to validate or sanitize inputs that are processed by the software. When the application receives user input without proper validation, it can interpret maliciously crafted parameters to navigate the file system and access files that should otherwise be restricted. This flaw aligns with CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as path traversal or directory traversal attacks. The vulnerability essentially allows an attacker to bypass normal access controls and directly interact with the file system, potentially accessing sensitive configuration files, user data, or system files that reside in the same directory as the vulnerable application.
From an operational standpoint, the impact of CVE-2020-5555 extends beyond simple data theft to encompass potential system compromise and data corruption. Attackers can leverage this vulnerability to read sensitive information stored in adjacent files, modify existing data, or potentially inject malicious content into the application's file system. The remote nature of the attack means that adversaries do not require physical access to the system or local network privileges to exploit the vulnerability, making it particularly dangerous for web-based applications or services. This type of vulnerability can facilitate further attacks in a network environment, as attackers might use the compromised application as a foothold to access other systems or escalate privileges within the network infrastructure.
The attack surface for this vulnerability is particularly concerning given that it affects multiple versions of the application, suggesting a persistent flaw in the software development lifecycle. Organizations running these specific versions face significant risk of unauthorized data access, potential data breaches, and system compromise. The vulnerability's classification under the ATT&CK framework would likely map to techniques involving file and directory permissions modification, credential access, and privilege escalation. Effective mitigation strategies should include immediate patching of affected versions, implementation of proper input validation and sanitization mechanisms, and restriction of file system permissions for the application. Additionally, network segmentation and monitoring for unusual file access patterns can help detect and prevent exploitation attempts. Security teams should also consider implementing web application firewalls and regular security assessments to identify similar vulnerabilities in other applications within their environment.