CVE-2015-3637 in phpMyBackupPro
Summary
by MITRE
SQL injection vulnerability in phpMyBackupPro when run in multi-user mode before 2.5 allows remote attackers to execute arbitrary SQL commands via the username and password parameters.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 01/28/2021
The CVE-2015-3637 vulnerability represents a critical sql injection flaw in phpMyBackupPro, a popular database backup utility for php applications. This vulnerability specifically affects versions prior to 2.5 when the application operates in multi-user mode, creating a dangerous attack vector that enables remote adversaries to execute arbitrary sql commands. The flaw stems from inadequate input validation and sanitization of user-provided credentials, particularly the username and password parameters that are processed during authentication and backup operations. The vulnerability is classified under cwe-89 sql injection, which is a well-documented weakness in software applications that fail to properly escape or validate user input before incorporating it into sql queries. This weakness allows attackers to manipulate the sql execution flow and potentially gain unauthorized access to database resources or extract sensitive information.
The technical exploitation of this vulnerability occurs when phpMyBackupPro processes user authentication requests in multi-user mode without proper parameter sanitization. Attackers can craft malicious username and password inputs that contain sql payload sequences designed to alter the intended database query execution. When the application processes these inputs, the unsanitized parameters are directly incorporated into sql statements, allowing attackers to inject additional sql commands that execute with the privileges of the application's database connection. The multi-user mode aspect of this vulnerability is particularly concerning as it suggests the application maintains separate user contexts, making the attack more impactful in environments where multiple administrators or users access the backup system. This scenario aligns with attack techniques described in the mitre att&ck framework under the execution and privilege escalation categories, where adversaries leverage application vulnerabilities to execute unauthorized commands and potentially escalate their access privileges.
The operational impact of CVE-2015-3637 extends beyond simple data theft, as successful exploitation can lead to complete database compromise and potential system infiltration. Attackers can use this vulnerability to extract sensitive data, modify database structures, create new database users, or even execute operating system commands if the database server allows such operations. The remote nature of this attack means that adversaries do not require physical access to the system, making it particularly dangerous for web-hosted applications. Organizations using phpMyBackupPro in multi-user environments face significant risk as the vulnerability can be exploited by anyone who can access the application interface, potentially leading to unauthorized backup operations, data corruption, or complete database exposure. The vulnerability also creates potential for lateral movement within networks where database credentials might be used for additional system access, making it a valuable entry point for more extensive attacks. According to industry best practices and security frameworks, this vulnerability represents a critical risk that should be addressed immediately through patching or implementing compensating controls to prevent unauthorized access to database resources and maintain the integrity of backup operations. The remediation process requires updating to phpMyBackupPro version 2.5 or later, which includes proper input validation and parameter sanitization measures to prevent sql injection attacks.
The vulnerability demonstrates the importance of proper input validation and the principle of least privilege in application security. It highlights how seemingly simple authentication parameters can become attack vectors when proper sanitization is not implemented. Organizations should implement comprehensive security measures including regular vulnerability assessments, input validation controls, and security monitoring to prevent exploitation of similar vulnerabilities. The attack surface for this vulnerability is significant in environments where phpMyBackupPro is deployed, particularly in shared hosting or multi-tenant environments where multiple users interact with the backup system. Security teams should also consider implementing web application firewalls and database activity monitoring to detect and prevent exploitation attempts. This vulnerability serves as a reminder of the critical need for secure coding practices and regular security updates to protect against sql injection attacks that continue to represent one of the most prevalent and dangerous application security threats in modern web environments.