CVE-2017-7388 in WallacePOS
Summary
by MITRE
A Cross-Site Scripting (XSS) was discovered in 'wallacepos v1.4.1'. The vulnerability exists due to insufficient filtration of user-supplied data (token) passed to the 'wallacepos-master/myaccount/resetpassword.php' URL. An attacker could execute arbitrary HTML and script code in a browser in the context of the vulnerable website.
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Analysis
by VulDB Data Team • 11/24/2022
The vulnerability identified as CVE-2017-7388 represents a critical cross-site scripting flaw within the wallacepos v1.4.1 web application. This security weakness stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before processing. The vulnerability specifically manifests in the resetpassword.php script located within the wallacepos-master/myaccount directory structure, where token parameters are not sufficiently filtered or escaped. The flaw allows malicious actors to inject arbitrary HTML and JavaScript code into the application's response, creating a persistent security risk that can compromise user sessions and data integrity. This type of vulnerability falls under the CWE-79 category, which specifically addresses cross-site scripting vulnerabilities in software applications. The attack vector leverages the fact that the application accepts user input through URL parameters without implementing proper sanitization measures, making it susceptible to malicious payload injection.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to perform session hijacking, steal sensitive user information, and potentially escalate privileges within the application. When a victim accesses a maliciously crafted URL containing the XSS payload, the browser executes the injected code within the legitimate website context, allowing unauthorized access to user accounts and potentially the entire application infrastructure. This vulnerability aligns with ATT&CK technique T1531 which focuses on establishing persistence through web shell deployment and credential theft. The weakness creates a persistent threat vector that can be exploited across multiple user sessions, as the malicious script executes every time the vulnerable page is accessed. Attackers can leverage this flaw to create backdoors, capture authentication tokens, or redirect users to malicious sites, fundamentally compromising the application's security posture and user trust.
Mitigation strategies for CVE-2017-7388 require immediate implementation of comprehensive input validation and output encoding mechanisms throughout the application. The most effective approach involves implementing strict sanitization of all user-supplied input, particularly URL parameters and form fields, through the use of established encoding libraries and proper HTML escaping techniques. Organizations should deploy context-specific output encoding to ensure that any data rendered in web pages is properly escaped for the target context, whether it be HTML, JavaScript, or URL contexts. The fix should include implementing Content Security Policy (CSP) headers to limit script execution and prevent unauthorized code injection. Additionally, regular security testing including automated vulnerability scanning and manual penetration testing should be conducted to identify similar flaws in other application components. The remediation process must also include updating the wallacepos application to a patched version that properly handles token validation and implements robust input sanitization measures, as specified in OWASP Top Ten security guidelines and industry best practices for preventing cross-site scripting vulnerabilities.