CVE-2022-23512 in MeterSphere
Summary
by MITRE • 12/14/2022
MeterSphere is a one-stop open source continuous testing platform. Versions prior to 2.4.1 are vulnerable to Path Injection in ApiTestCaseService::deleteBodyFiles which takes a user-controlled string id and passes it to ApiTestCaseService, which uses the user-provided value (testId) in new File(BODY_FILE_DIR + "/" + testId), being deleted later by file.delete(). By adding some camouflage parameters to the url, an attacker can target files on the server. The vulnerability has been fixed in v2.4.1.
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Analysis
by VulDB Data Team • 01/12/2023
The vulnerability identified as CVE-2022-23512 affects MeterSphere, an open-source continuous testing platform, specifically in versions prior to 2.4.1. This issue manifests as a path injection flaw within the ApiTestCaseService::deleteBodyFiles method, representing a critical security weakness that allows unauthorized file access and manipulation on the affected server. The vulnerability stems from the platform's improper handling of user-provided identifiers when constructing file paths for deletion operations.
The technical flaw occurs when the system accepts a user-controlled string parameter named id and directly incorporates it into file path construction without adequate sanitization or validation. The vulnerable code pattern demonstrates the insecure practice of concatenating user input directly into file system operations, specifically in the line where new File(BODY_FILE_DIR + "/" + testId) is constructed. This creates a path traversal condition where an attacker can manipulate the testId parameter to navigate to arbitrary file locations on the server's file system. The vulnerability is particularly dangerous because it leverages the existing file deletion functionality to potentially access and manipulate files beyond the intended scope.
The operational impact of this vulnerability extends beyond simple file deletion, as it enables attackers to exploit the path injection to access sensitive server files that may contain configuration data, user information, or other confidential assets. By crafting malicious URLs with camouflage parameters, attackers can target files on the server that should remain protected, potentially leading to data breaches, system compromise, or further exploitation. The vulnerability allows for arbitrary file access and manipulation, which can result in complete system compromise if sensitive files are accessible through this vector. This type of vulnerability aligns with CWE-22 Path Traversal and CWE-73 Path Traversal, both classified under the broader category of insecure direct object references.
The security implications of CVE-2022-23512 are significant within the context of continuous testing platforms that handle sensitive test data and configurations. Attackers can leverage this vulnerability to gain unauthorized access to server files, potentially leading to information disclosure, system integrity compromise, or availability disruption. The attack surface is particularly concerning because it operates through the legitimate file deletion functionality, making detection more challenging. This vulnerability falls under ATT&CK technique T1059 Command and Scripting Interpreter and T1566 Phishing, as attackers can use the path injection to access sensitive files and potentially escalate privileges. The fix implemented in version 2.4.1 addresses this by properly sanitizing user inputs and implementing proper path validation before file operations occur.
Mitigation strategies for this vulnerability should include immediate upgrading to MeterSphere version 2.4.1 or later, which contains the necessary security patches. Organizations should also implement additional defensive measures such as input validation, proper path normalization, and file access controls to prevent similar issues. Regular security assessments and code reviews focusing on file system operations are essential to identify and remediate similar vulnerabilities. The vulnerability demonstrates the critical importance of proper input validation in file system operations and the potential consequences of insecure coding practices in web applications. Security teams should monitor for any additional vulnerabilities in the MeterSphere platform and ensure that all components are regularly updated to maintain security posture against evolving threats.