CVE-2022-2087 in Bank Management System
Summary
by MITRE • 06/15/2022
A vulnerability, which was classified as problematic, was found in SourceCodester Bank Management System 1.0. This affects the file /mnotice.php?id=2. The manipulation of the argument notice with the input alert(1) leads to cross site scripting. It is possible to initiate the attack 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-2022-2087 represents a critical cross site scripting flaw within the SourceCodester Bank Management System version 1.0. This security weakness resides in the /mnotice.php?id=2 endpoint where improper input validation allows malicious actors to inject arbitrary JavaScript code through the notice parameter. The vulnerability classification as problematic indicates significant risk to system integrity and user security. The specific attack vector involves injecting the payload alert(1) which demonstrates the exploitation capability of the XSS vulnerability. This flaw enables attackers to execute malicious scripts in the context of the victim's browser, potentially compromising user sessions and data confidentiality.
The technical implementation of this vulnerability stems from inadequate sanitization of user-supplied input within the notice parameter handling mechanism. When the application processes the id parameter and displays the notice content without proper output encoding or validation, it creates an environment where malicious JavaScript code can be executed. This weakness directly maps to CWE-79 which categorizes cross site scripting vulnerabilities as a result of insufficient input validation and output encoding. The vulnerability exists in the web application layer where user input flows directly into web page output without appropriate security measures. The attack can be initiated remotely through a simple web request manipulation, making it particularly dangerous as it requires no physical access to the target system.
The operational impact of this vulnerability extends beyond simple script execution to encompass potential session hijacking, data theft, and unauthorized administrative actions within the banking management system. An attacker could leverage this XSS flaw to steal user credentials, modify account information, or redirect users to malicious sites that appear legitimate. The public disclosure of the exploit increases the risk level significantly as it provides attackers with ready-made attack vectors. This vulnerability particularly threatens financial institutions where user trust and data security are paramount, as it could lead to unauthorized transactions and compromise sensitive banking information. The remote exploitation capability means that attackers can target users from anywhere on the internet without requiring local network access or system compromise.
Mitigation strategies for CVE-2022-2087 should implement comprehensive input validation and output encoding mechanisms to prevent malicious code injection. The system must sanitize all user inputs before processing and ensure proper HTML encoding of output data to prevent script execution. Implementing Content Security Policy headers can provide additional protection against XSS attacks by restricting script execution sources. Regular security audits and penetration testing should be conducted to identify similar vulnerabilities in the application codebase. The application should also implement proper access controls and authentication mechanisms to limit the potential impact of successful exploitation. Organizations using this system should immediately patch the vulnerability or implement temporary workarounds such as input filtering at the web application firewall level. According to ATT&CK framework, this vulnerability falls under T1059.007 for script injection techniques, making it a target for automated exploitation tools and malware distribution methods that leverage XSS vulnerabilities for broader attack chains.