CVE-2022-28063 in Simple Bakery Shop Management
Summary
by MITRE • 04/04/2022
Simple Bakery Shop Management System v1.0 contains a file disclosure via /bsms/?page=products.
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Analysis
by VulDB Data Team • 04/06/2022
The Simple Bakery Shop Management System version 1.0 presents a critical file disclosure vulnerability that allows unauthorized access to sensitive system files through a manipulated parameter in the web application interface. This vulnerability exists within the product management module where the application fails to properly validate user input when processing the page parameter, creating an opportunity for attackers to enumerate and retrieve arbitrary files from the server filesystem. The vulnerability specifically manifests when the application processes requests to the /bsms/?page=products endpoint without adequate sanitization of the page parameter value, enabling directory traversal attacks that can expose configuration files, database credentials, and other sensitive information stored on the server.
The technical flaw stems from improper input validation and lack of access controls within the application's routing mechanism. When an attacker submits a crafted request containing a malicious page parameter value, the application processes this input directly without proper sanitization or authorization checks. This weakness aligns with CWE-22 - Improper Limitation of a Pathname to a Restricted Directory and CWE-23 - Relative Path Traversal, both of which fall under the broader category of path traversal vulnerabilities that have been extensively documented in security literature. The vulnerability can be exploited using standard directory traversal payloads such as ../ or ../../../ etc., allowing attackers to navigate through the file system and access files that should remain protected.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can potentially lead to complete system compromise if sensitive configuration files containing database credentials, API keys, or application secrets are accessible. Attackers can leverage this vulnerability to gain insights into the application architecture, identify other potential attack vectors, and potentially escalate privileges within the system. The vulnerability affects the confidentiality of the system and can lead to unauthorized access to business-critical data including customer information, inventory details, and financial records that are typically protected within a properly secured application environment. This weakness directly violates the principle of least privilege and can enable attackers to perform reconnaissance activities that would otherwise be blocked by proper access controls.
Mitigation strategies should focus on implementing proper input validation and sanitization mechanisms within the application's parameter handling logic. The development team must implement strict validation of all user-supplied input, particularly parameters used in routing decisions, to prevent directory traversal attacks. Access controls should be enforced at the application level to ensure that only authorized users can access specific application modules and resources. The system should implement a whitelist approach for valid page parameters rather than allowing arbitrary input to determine application behavior. Additionally, the application should be configured to run with minimal required privileges and should not have unnecessary file system access that could be exploited by attackers. This vulnerability also highlights the importance of following secure coding practices and implementing proper security controls during the development lifecycle, aligning with the ATT&CK technique T1213 - Data from Information Repositories and T1566 - Phishing for Information, as attackers often use such vulnerabilities to gather intelligence for more sophisticated attacks. Organizations should conduct regular security assessments and penetration testing to identify similar weaknesses in their web applications and ensure that proper security controls are in place to prevent unauthorized file access and disclosure.