CVE-2022-2086 in Bank Management System
Summary
by MITRE • 06/15/2022
A vulnerability, which was classified as critical, has been found in SourceCodester Bank Management System 1.0. Affected by this issue is login.php. The manipulation of the argument password with the input 1'and 1=2 union select 1,sleep(10),3,4,5 --+ 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 • 06/17/2022
The vulnerability identified as CVE-2022-2086 represents a critical sql injection flaw within the SourceCodester Bank Management System version 1.0, specifically affecting the login.php component. This weakness stems from inadequate input validation and sanitization mechanisms that fail to properly escape or filter user-supplied data before incorporating it into database queries. The attack vector exploits the system's failure to implement proper parameterized queries or input sanitization, allowing malicious actors to manipulate the password parameter through crafted sql payloads that can bypass authentication mechanisms and potentially gain unauthorized access to sensitive banking data.
The technical exploitation of this vulnerability demonstrates a classic sql injection attack pattern where the attacker crafts a malicious input string containing sql code that gets executed within the database context. The specific payload 1'and 1=2 union select 1,sleep(10),3,4,5 --+ employs multiple sql injection techniques including boolean logic manipulation, union-based data extraction, and time-based delay obfuscation to bypass security measures. This approach leverages the database's ability to execute multiple sql statements sequentially, allowing attackers to extract information from the database or manipulate its contents through carefully constructed sql commands that exploit the lack of proper input validation.
The operational impact of this vulnerability extends beyond simple authentication bypass to encompass potential data breaches, unauthorized financial transactions, and complete system compromise. Attackers can leverage this vulnerability to access customer account information, transaction histories, and sensitive banking details stored within the database. The remote exploitation capability means that adversaries can target the system from external networks without requiring physical access or prior authentication, making the attack surface significantly larger and more dangerous. According to the attack pattern taxonomy, this vulnerability aligns with attack technique t1190 (exploitation for execution) and t1071.004 (application layer protocol) within the attack mitigation framework.
The security implications of this vulnerability are particularly severe given that it affects a banking management system where unauthorized access could result in financial fraud, identity theft, and regulatory compliance violations. The disclosure of the exploit to the public increases the risk of widespread exploitation, as malicious actors can immediately implement the attack without requiring advanced technical skills or extensive reconnaissance. Organizations running this vulnerable system face potential regulatory penalties under financial services compliance frameworks such as pci dss, which mandates protection against sql injection attacks through proper input validation and secure coding practices.
Mitigation strategies should focus on implementing comprehensive input validation, adopting parameterized queries, and applying proper sql injection prevention mechanisms. Organizations must immediately patch the vulnerable system or implement web application firewalls to detect and block sql injection attempts. The remediation approach should align with the defense in depth principle, incorporating multiple security controls including database access controls, regular security assessments, and monitoring for suspicious sql patterns. Additionally, implementing proper application security training for developers and establishing secure coding standards can prevent similar vulnerabilities from occurring in future software releases. This vulnerability exemplifies the importance of following secure coding practices and adhering to security standards such as those defined in the owasp top ten and cwe categories related to sql injection vulnerabilities.