CVE-2022-4065 in testng
Summary
by MITRE • 11/20/2022
A vulnerability was found in cbeust testng. It has been declared as critical. Affected by this vulnerability is the function testngXmlExistsInJar of the file testng-core/src/main/java/org/testng/JarFileUtils.java of the component XML File Parser. The manipulation leads to path traversal. The attack can be launched remotely. The name of the patch is 9150736cd2c123a6a3b60e6193630859f9f0422b. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-214027.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 04/29/2023
The vulnerability identified as CVE-2022-4065 represents a critical path traversal flaw within the TestNG testing framework, specifically affecting the XML file parser component. This vulnerability exists in the testng-core module at the path testng-core/src/main/java/org/testng/JarFileUtils.java where the function testngXmlExistsInJar processes XML files. The flaw arises from inadequate input validation and sanitization when handling jar file paths, creating an opportunity for attackers to manipulate file system access through carefully crafted inputs. The vulnerability has been classified with a critical severity rating due to its potential for remote exploitation and the privilege escalation it could enable.
The technical implementation of this vulnerability stems from improper handling of file path resolution within the jar file utility functions. When the testngXmlExistsInJar function processes XML files contained within jar archives, it fails to properly validate or sanitize the file paths extracted from these archives. This allows an attacker to inject malicious path sequences that can traverse the file system beyond the intended jar boundaries. The vulnerability specifically manifests when the application processes XML configuration files that reference external resources or when jar files contain malformed path references. The attack vector is remote, meaning an attacker can exploit this vulnerability without requiring physical access to the target system, making it particularly dangerous in networked environments.
The operational impact of this vulnerability extends beyond simple file system traversal, potentially enabling attackers to access sensitive files, execute arbitrary code, or perform privilege escalation attacks. In a testing environment, this could allow an attacker to access configuration files, credentials, or other sensitive data that might be stored within the jar archives. The vulnerability affects not only the immediate TestNG framework but also any applications that rely on TestNG for testing and validation processes. The patch referenced as 9150736cd2c123a6a3b60e6193630859f9f0422b addresses the core path traversal issue by implementing proper input validation and sanitization of file paths before they are processed. This aligns with the CWE-23 principle of ensuring that file paths are properly validated to prevent directory traversal attacks.
Security practitioners should consider this vulnerability in the context of the MITRE ATT&CK framework, particularly under the techniques related to privilege escalation and reconnaissance. The vulnerability could be leveraged as part of a broader attack chain where an initial compromise leads to further system exploration and data exfiltration. Organizations using TestNG should prioritize patching this vulnerability immediately, as the remote exploitability and critical severity rating indicate a high probability of being actively targeted in the wild. The fix implemented in the patch ensures that all file paths extracted from jar archives are properly validated against a whitelist of acceptable paths, preventing any traversal sequences from being processed. This remediation approach aligns with industry best practices for preventing path traversal vulnerabilities and demonstrates the importance of proper input validation in security-critical applications.