CVE-2020-35263 in User Registration & Login System
Summary
by MITRE • 01/26/2021
EgavilanMedia User Registration & Login System 1.0 is affected by SQL injection to the admin panel, which may allow arbitrary code execution.
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Analysis
by VulDB Data Team • 02/19/2021
The EgavilanMedia User Registration & Login System version 1.0 contains a critical SQL injection vulnerability that affects the administrator panel access. This vulnerability stems from inadequate input validation and sanitization within the system's database interaction mechanisms, specifically in how user credentials and administrative commands are processed. The flaw allows authenticated attackers with access to the admin panel to manipulate database queries through malicious input parameters, potentially enabling full system compromise.
The technical implementation of this vulnerability resides in the system's failure to properly escape or parameterize user-supplied input before incorporating it into SQL command structures. When administrative functions are executed through the web interface, the system directly concatenates user-provided data into database queries without adequate sanitization measures. This primitive approach to database interaction creates an exploitable condition where malicious payloads can be injected into the SQL execution context, potentially allowing attackers to execute arbitrary database commands.
From an operational perspective, this vulnerability presents a severe risk to system integrity and data confidentiality. An attacker who successfully exploits this SQL injection flaw can gain unauthorized access to the entire database backend, potentially extracting sensitive user information, modifying administrative credentials, or executing arbitrary code on the server. The vulnerability's impact extends beyond simple data theft, as it can enable persistent access and further exploitation of the underlying infrastructure. The attack surface is particularly concerning given that the vulnerability affects the admin panel, which typically contains the most privileged system functions and access controls.
The vulnerability aligns with CWE-89 which identifies SQL injection as a fundamental weakness in software applications where untrusted data is incorporated into SQL queries without proper sanitization. This weakness directly maps to the ATT&CK framework's technique T1071.004 for application layer protocol manipulation and T1046 for network service discovery, as attackers can leverage this vulnerability to expand their access within the network environment. Organizations should implement immediate mitigations including input validation, parameterized queries, and web application firewall rules to prevent exploitation. Additionally, the system requires comprehensive code review and remediation to address the root cause of the vulnerability through proper database interaction patterns and input sanitization techniques.