CVE-2019-19127 in SITS:Vision
Summary
by MITRE
An authentication bypass vulnerability is present in the standalone SITS:Vision 9.7.0 component of Tribal SITS in its default configuration, related to unencrypted communications sent by the client each time it is launched. This occurs because the Uniface TLS Driver is not enabled by default. This vulnerability allows attackers to gain access to credentials or execute arbitrary SQL queries on the SITS backend as long as they have access to the client executable or can intercept traffic from a user who does.
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Analysis
by VulDB Data Team • 05/11/2024
The vulnerability described in CVE-2019-19127 represents a critical authentication bypass flaw within the Tribal SITS:Vision 9.7.0 standalone component that stems from improper cryptographic configuration. This issue manifests specifically in the default deployment scenario where the Uniface TLS Driver remains disabled, creating a significant security gap that undermines the integrity of client-server communications. The vulnerability exists because the system fails to enforce encrypted communication channels during client initialization, leaving sensitive authentication data exposed to potential interception attacks.
The technical root cause of this vulnerability lies in the absence of Transport Layer Security encryption during client communication initiation, which directly maps to CWE-319 - Cleartext Transmission of Sensitive Information. When the Uniface TLS Driver is not enabled by default, all client communications including authentication credentials are transmitted in plaintext over the network. This configuration flaw allows attackers to capture authentication tokens, session identifiers, and potentially sensitive data that would normally be protected through encrypted channels. The vulnerability specifically affects the initial client connection phase where the system should establish secure communication but fails to do so.
The operational impact of this vulnerability extends beyond simple credential theft to include potential full system compromise through SQL injection attacks. An attacker who gains access to the client executable or can intercept network traffic can exploit this weakness to execute arbitrary SQL queries against the SITS backend database. This represents a significant escalation from simple authentication bypass to full database access, potentially allowing attackers to extract sensitive data, modify backend records, or even escalate privileges within the system. The vulnerability's exploitability is greatly enhanced by the fact that it requires no specialized tools beyond standard network monitoring and interception capabilities.
Security practitioners should address this vulnerability through immediate configuration changes that enable the Uniface TLS Driver by default. The recommended mitigation involves configuring all client systems to enforce encrypted communication channels and ensuring that the TLS driver is properly activated during system initialization. Organizations should also implement network monitoring to detect and prevent unauthorized interception of client communications. This vulnerability aligns with ATT&CK technique T1071.004 - Application Layer Protocol: DNS, where attackers may leverage unencrypted communications to gather credentials and establish persistent access. Additionally, the issue demonstrates characteristics of ATT&CK technique T1110.003 - Brute Force: Password Guessing, as attackers can leverage intercepted credentials to gain unauthorized access to backend systems. Organizations must also consider implementing network segmentation and mandatory access controls to limit the potential impact of credential compromise in case of successful exploitation.