CVE-2022-32253 in SINEMA Remote Connect Server
Summary
by MITRE • 06/14/2022
A vulnerability has been identified in SINEMA Remote Connect Server (All versions < V3.1). Due to improper input validation, the OpenSSL certificate's password could be printed to a file reachable by an attacker.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 07/09/2024
The vulnerability identified as CVE-2022-32253 affects SINEMA Remote Connect Server versions prior to V3.1 and represents a critical security flaw in the certificate management process. This issue stems from inadequate input validation mechanisms within the software's OpenSSL certificate handling functionality, creating a pathway for sensitive information exposure. The vulnerability specifically targets the password associated with OpenSSL certificates, which are fundamental components for establishing secure communications and authentication within the remote connect infrastructure.
The technical implementation of this flaw occurs during certificate processing operations where the system fails to properly sanitize or validate user inputs before incorporating them into file operations. When an OpenSSL certificate password is processed, the insufficient validation allows the password value to be written directly to a file that can be accessed by unauthorized parties. This represents a classic case of improper input validation that violates security best practices and creates a direct information disclosure vulnerability. The flaw operates at the application layer and can be exploited through malicious input manipulation that bypasses normal security controls.
The operational impact of this vulnerability extends beyond simple information disclosure, as it fundamentally undermines the security posture of systems relying on SINEMA Remote Connect Server for remote access management. An attacker who gains access to the compromised file containing the certificate password can subsequently impersonate legitimate users, establish unauthorized connections to remote systems, and potentially escalate privileges within the network. This vulnerability directly affects the confidentiality and integrity of the security infrastructure, as it provides unauthorized access to cryptographic keys that should remain protected. The attack surface is particularly concerning given that the affected systems typically operate in industrial control environments where security is paramount.
Mitigation strategies for CVE-2022-32253 should prioritize immediate software updates to V3.1 or later versions where the input validation issues have been addressed. Organizations should also implement additional monitoring of file system access patterns to detect unauthorized file creation or modification activities related to certificate files. The vulnerability aligns with CWE-20, which describes improper input validation as a fundamental weakness in software security, and maps to ATT&CK technique T1552.001 for credentials in files, highlighting the exploitation of stored credentials through file system access. Security teams should conduct comprehensive assessments of their certificate management processes and implement principle of least privilege controls to minimize potential damage from any successful exploitation attempts.