CVE-2022-25493 in HMS
Summary
by MITRE • 03/15/2022
HMS v1.0 was discovered to contain a reflected cross-site scripting (XSS) vulnerability via treatmentrecord.php.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 03/18/2022
The vulnerability identified as CVE-2022-25493 represents a critical security flaw in HMS v1.0 software where a reflected cross-site scripting vulnerability was discovered through the treatmentrecord.php component. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting flaws in software applications. The reflected XSS vulnerability occurs when user input is immediately returned in the application's response without proper sanitization or encoding, allowing malicious actors to inject harmful scripts into web pages viewed by other users.
The technical exploitation of this vulnerability involves crafting malicious input that gets reflected back to the user's browser through the treatmentrecord.php script. When unsuspecting users navigate to a specially crafted URL containing the malicious payload, the script executes in their browser context, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability specifically targets the web application's input handling mechanism where data submitted through the treatmentrecord.php interface is not adequately validated or sanitized before being rendered back to users. This creates an attack surface where an attacker can manipulate the application's behavior by injecting malicious JavaScript code that executes in the context of other users' sessions.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable attackers to perform a wide range of malicious activities within the application's security context. According to ATT&CK framework category T1059.007, this vulnerability provides an attacker with a method to execute code in the victim's browser, potentially leading to complete compromise of user sessions and sensitive data exposure. The vulnerability affects the application's integrity and confidentiality, as it allows unauthorized access to user data and can be leveraged to escalate privileges within the application's user management system. Attackers can exploit this weakness to manipulate treatment records, access patient information, or gain unauthorized administrative access depending on the application's permission model.
Mitigation strategies for CVE-2022-25493 should focus on implementing proper input validation and output encoding mechanisms throughout the application. The most effective approach involves sanitizing all user inputs before they are processed or returned to users, implementing proper HTTP headers such as Content Security Policy to limit script execution, and utilizing secure coding practices that prevent the direct inclusion of user-supplied data in web responses. Organizations should also consider implementing web application firewalls and regular security testing to identify similar vulnerabilities in other application components. Additionally, the vulnerability highlights the importance of following OWASP Top 10 security guidelines, particularly those addressing injection flaws and cross-site scripting vulnerabilities. Regular patch management and security updates should be implemented to ensure that all known vulnerabilities are addressed promptly. The remediation process requires thorough code review of the treatmentrecord.php script and all related input handling mechanisms to ensure that all user-supplied data is properly validated and sanitized before being rendered in web responses.