CVE-2017-15974 in tPanel
Summary
by MITRE
tPanel 2009 allows SQL injection for Authentication Bypass via 'or 1=1 or ''=' to login.php.
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Analysis
by VulDB Data Team • 11/09/2025
The vulnerability identified as CVE-2017-15974 represents a critical SQL injection flaw in tPanel 2009 that enables unauthorized authentication bypass. This issue resides within the login.php script where user input is improperly sanitized, creating an exploitable entry point for malicious actors seeking to gain unauthorized access to the system. The vulnerability manifests when an attacker submits the payload 'or 1=1 or ''=' to the authentication interface, which demonstrates the classic SQL injection pattern where the malicious input alters the intended query logic.
The technical implementation of this vulnerability aligns with CWE-89, which categorizes SQL injection as a weakness that occurs when an application fails to properly escape user input before incorporating it into SQL queries. In the context of tPanel 2009, the authentication mechanism does not adequately validate or sanitize the username parameter, allowing an attacker to manipulate the SQL statement execution flow. The payload 'or 1=1 or ''=' exploits the logical operators within SQL to always evaluate as true, effectively bypassing the authentication check by making the WHERE clause condition always return valid results regardless of the actual credentials provided.
From an operational perspective, this vulnerability presents a severe risk to system security as it allows complete authentication bypass without requiring legitimate credentials. Attackers can leverage this flaw to access administrative functions, modify system configurations, steal sensitive data, or establish persistent access to the compromised system. The impact extends beyond simple unauthorized access as the vulnerability can be exploited by both authenticated and unauthenticated attackers, depending on the system configuration and network exposure. This weakness directly maps to ATT&CK technique T1190, which covers exploitation of vulnerabilities in software applications, and T1078, which addresses valid accounts usage for persistence and privilege escalation.
The mitigation strategies for this vulnerability require immediate implementation of proper input validation and parameterized queries to prevent SQL injection attacks. Organizations should apply the vendor-provided security patches or upgrade to a supported version of tPanel that addresses this flaw. Additionally, implementing web application firewalls, input sanitization, and regular security assessments can help prevent exploitation of similar vulnerabilities. The remediation process should include thorough code review to identify other potential SQL injection points within the application and implementation of proper access controls to limit the damage from successful exploitation attempts.