CVE-2022-27434 in Teta Mobile Edition
Summary
by MITRE • 07/18/2022
UNIT4 TETA Mobile Edition (ME) before 29.5.HF17 was discovered to contain a SQL injection vulnerability via the ProfileName parameter in the errorReporting page.
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Analysis
by VulDB Data Team • 08/01/2022
The vulnerability identified as CVE-2022-27434 affects UNIT4 TETA Mobile Edition ME versions prior to 29.5.HF17, representing a critical SQL injection flaw that could enable unauthorized access to sensitive database resources. This vulnerability specifically manifests through the ProfileName parameter within the errorReporting page functionality, creating an attack vector where malicious actors can manipulate database queries through crafted input. The issue stems from insufficient input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into database operations.
This SQL injection vulnerability operates under CWE-89 which classifies it as a classic SQL injection attack where untrusted data flows directly into SQL command construction without adequate protection measures. The attack surface is particularly concerning given that the vulnerable parameter exists within an error reporting mechanism, suggesting that the application may be processing user inputs during error handling procedures when security controls might be relaxed or bypassed. The ProfileName parameter likely serves as a user identifier or session reference within the error reporting context, making it a prime target for exploitation.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation could allow attackers to execute arbitrary database commands with the privileges of the database user account. This could result in unauthorized data access, modification, or deletion across the application's database schema. The mobile edition environment adds complexity to the attack scenario since mobile applications often handle sensitive personal and business data, potentially exposing user credentials, transaction records, or other confidential information. Attackers could leverage this vulnerability to escalate privileges, bypass authentication mechanisms, or perform data exfiltration attacks that would be difficult to trace.
From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1071.004 for Application Layer Protocol: DNS and T1041 for Exfiltration, as attackers could use the SQL injection to extract data and potentially establish persistence within the system. The exploitation process would likely involve crafting malicious ProfileName parameter values that contain SQL payload constructs designed to manipulate the database query execution flow. Given the mobile nature of TETA ME, attackers could potentially target this vulnerability from various network positions, including unsecured public networks where mobile users might be accessing the application.
Organizations should implement immediate mitigations including input validation, parameterized queries, and comprehensive output encoding to prevent SQL injection attacks. The recommended solution involves updating to UNIT4 TETA Mobile Edition ME version 29.5.HF17 or later, which contains the necessary patches to address the vulnerability. Additional defensive measures include implementing web application firewalls, conducting regular security assessments, and establishing proper database access controls. The vulnerability also underscores the importance of secure coding practices and input validation across all application components, particularly those handling user inputs in error handling and reporting modules.