CVE-2023-3395 in TBox RTU
Summary
by MITRE • 07/04/2023
​All versions of the TWinSoft Configuration Tool store encrypted passwords as plaintext in memory. An attacker with access to system files could open a file to load the document into memory, including sensitive information associated with document, such as password. The attacker could then obtain the plaintext password by using a memory viewer.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 07/22/2023
The vulnerability identified as CVE-2023-3395 represents a critical security flaw in the TWinSoft Configuration Tool where encrypted passwords are inadvertently stored as plaintext in memory during runtime operations. This issue affects all versions of the software and stems from improper memory handling practices that fail to maintain the confidentiality of sensitive authentication data throughout the application's lifecycle. The vulnerability manifests when the configuration tool loads documents containing encrypted password information into memory, where these credentials are subsequently stored in an accessible plaintext format rather than maintaining their encrypted state.
From a technical perspective, this flaw constitutes a memory corruption vulnerability that directly violates fundamental security principles of data protection and confidentiality. The software's memory management implementation fails to properly secure sensitive information during processing, creating an exploitable condition where any process with sufficient privileges to access the application's memory space can extract plaintext credentials using standard memory examination tools. This vulnerability aligns with CWE-312 (CWE-312: Cleartext Storage of Sensitive Information in Memory) which specifically addresses the improper storage of sensitive data in memory without adequate protection mechanisms.
The operational impact of this vulnerability extends beyond simple credential exposure, as it provides attackers with persistent access to authentication credentials that could enable further exploitation within the targeted system. An attacker with access to system files and the ability to load documents into the configuration tool can leverage this weakness to extract plaintext passwords from memory, potentially gaining unauthorized access to network resources, administrative accounts, or other sensitive systems protected by the compromised credentials. This vulnerability is particularly concerning because it operates at the memory level, making it difficult to detect through traditional network monitoring or file system analysis techniques.
The security implications of CVE-2023-3395 align with several ATT&CK tactics including credential access and privilege escalation, as the vulnerability enables adversaries to obtain valid credentials without requiring additional attack vectors. The weakness creates a persistent threat surface that remains active throughout the application's runtime, potentially allowing attackers to maintain long-term access to systems protected by the compromised credentials. Organizations utilizing the TWinSoft Configuration Tool face significant risk of unauthorized access, data breaches, and potential lateral movement within their networks when this vulnerability remains unpatched.
Mitigation strategies should focus on immediate remediation through software updates provided by the vendor, combined with operational security measures such as restricting access to system files and memory spaces, implementing process monitoring to detect unauthorized memory access attempts, and conducting regular security assessments of the configuration tool's runtime environment. Additionally, organizations should consider implementing memory protection mechanisms and privilege separation techniques to limit the potential impact of such vulnerabilities. The vulnerability demonstrates the critical importance of proper memory handling and encryption practices throughout software development lifecycle, particularly when dealing with sensitive authentication data that must remain protected at all times during processing operations.