CVE-2022-2214 in Library Management System
Summary
by MITRE • 06/27/2022
A vulnerability was found in SourceCodester Library Management System 1.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file /librarian/bookdetails.php. The manipulation of the argument id with the input ' AND (SELECT 9198 FROM (SELECT(SLEEP(5)))iqZA)-- PbtB leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 07/15/2022
This critical vulnerability exists within the SourceCodester Library Management System version 1.0, specifically targeting the /librarian/bookdetails.php component through a SQL injection flaw. The vulnerability is triggered when an attacker manipulates the id parameter with a malicious payload containing a time-based blind SQL injection technique. The payload ' AND (SELECT 9198 FROM (SELECT(SLEEP(5)))iqZA)-- PbtB demonstrates the use of a sleep function to determine if the injection is successful, as the database will pause execution for five seconds if the query executes properly. This type of attack leverages the database's ability to delay responses, allowing attackers to infer information about the underlying database structure through timing differences.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the application's database query construction process. When the application receives the id parameter without proper escaping or parameterization, it directly incorporates user-supplied data into SQL queries, creating an avenue for malicious code execution. The use of time-based blind SQL injection indicates that the application does not employ proper prepared statements or parameterized queries, which would normally prevent such attacks by separating SQL code from data. This vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws, and represents a classic example of how insufficient input validation can lead to complete database compromise.
The operational impact of this vulnerability is severe and multifaceted, as it allows remote attackers to execute arbitrary SQL commands against the backend database without authentication. Successful exploitation could result in data theft, data manipulation, privilege escalation, and potentially full system compromise. Attackers could extract sensitive information including user credentials, personal data, and system configurations from the database. The disclosure of this exploit to the public means that malicious actors can readily implement this attack without requiring advanced technical knowledge, significantly increasing the risk to systems running the vulnerable library management system. The time-based nature of the attack also makes it particularly challenging to detect through traditional network monitoring as it appears as normal database activity with delayed responses.
Organizations should immediately implement multiple layers of mitigation to address this vulnerability. The primary remediation involves implementing proper input validation and parameterized queries throughout the application code, particularly in the bookdetails.php file and similar database interaction points. All user-supplied input must be sanitized and validated before processing, with strict type checking and length restrictions applied. Database access should be restricted to minimal required privileges for the application, implementing the principle of least privilege. Network-level protections including web application firewalls and intrusion detection systems should be deployed to monitor for SQL injection patterns and block malicious traffic. Additionally, regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other application components. The ATT&CK framework categorizes this as a SQL injection technique under the T1190 category, emphasizing the importance of proper input handling and database access controls in preventing such attacks. Regular patching and updates of the library management system are essential to prevent exploitation of this and similar vulnerabilities that may be discovered in the future.