CVE-2001-0305 in ES.One
Summary
by MITRE
Directory traversal vulnerability in store.cgi in Thinking Arts ES.One package allows remote attackers to read arbitrary files via a .. (dot dot) in the StartID parameter.
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Analysis
by VulDB Data Team • 11/30/2024
The vulnerability identified as CVE-2001-0305 represents a classic directory traversal flaw within the Thinking Arts ES.One package's store.cgi script. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied parameters before processing them within the application's file system operations. The specific vulnerability manifests when the StartID parameter contains directory traversal sequences such as .. which allows attackers to navigate outside the intended directory structure and access arbitrary files on the server. This type of 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 vulnerability exists in the context of web applications that dynamically construct file paths based on user input without proper validation or sanitization of the input data.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious request containing the .. sequence within the StartID parameter of the store.cgi script. When the application processes this input without proper validation, it interprets the directory traversal sequences and attempts to access files in parent directories relative to the intended file path. This can potentially lead to unauthorized access to sensitive system files, configuration files, database files, or other restricted resources that should not be accessible through the web interface. The attack vector is particularly dangerous because it can be executed remotely without requiring any special privileges or authentication, making it a significant threat to web application security. The vulnerability is classified under the MITRE ATT&CK framework as part of the privilege escalation and credential access techniques, specifically targeting the use of directory traversal to access restricted files.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can potentially provide attackers with access to critical system information that could be used for further exploitation. Attackers may gain access to sensitive files such as password hashes, configuration settings, database connection details, or application source code that could facilitate additional attacks. The vulnerability can compromise the integrity and confidentiality of the affected system, potentially leading to complete system compromise if attackers can access administrative files or credentials stored in accessible locations. Organizations running vulnerable versions of the Thinking Arts ES.One package face significant risk of data breaches, system compromise, and regulatory compliance violations, particularly in environments where sensitive data is processed or stored. The vulnerability affects the availability of the system as well, since attackers could potentially access files that are critical to system operations or cause denial of service by accessing system resources.
Mitigation strategies for CVE-2001-0305 should focus on implementing proper input validation and sanitization mechanisms within the application code. The most effective approach involves implementing strict parameter validation that rejects or filters out directory traversal sequences such as .. and similar patterns from user input before processing. Organizations should also implement proper access controls and file system permissions to limit what files can be accessed through the web application interface. The implementation of a whitelist approach for file access, where only explicitly allowed files or directories can be accessed, provides a robust defense against this type of attack. Additionally, regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other parts of the application or system. System administrators should also ensure that the affected software packages are updated to versions that have been patched to address this vulnerability. The remediation process should include thorough testing to ensure that the input validation does not break legitimate application functionality while effectively preventing unauthorized file access attempts. Organizations should also implement monitoring and logging mechanisms to detect and respond to potential exploitation attempts of this vulnerability.