CVE-2017-16919 in MapOS
Summary
by MITRE
MapOS 3.1.11 and earlier has a Stored Cross-site Scripting (XSS) vulnerability in /clientes/visualizar, which allows remote attackers to inject arbitrary web script or HTML via a crafted description parameter.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-16919 represents a critical stored cross-site scripting flaw within MapOS version 3.1.11 and earlier installations. This security weakness exists in the /clientes/visualizar endpoint of the application, where user-supplied input is inadequately validated and sanitized before being rendered in web pages. The vulnerability stems from the application's failure to properly escape or filter special characters in the description parameter, creating an environment where malicious actors can inject persistent script code that executes in the context of other users' browsers.
The technical implementation of this vulnerability demonstrates a classic stored XSS attack vector where the malicious payload is permanently stored on the server and subsequently served to unsuspecting victims during normal application usage. When administrators or other users navigate to the affected page, the injected script code executes in their browser context, potentially leading to session hijacking, credential theft, or further exploitation. The vulnerability specifically targets the description parameter, which suggests that user-editable fields within the client management functionality serve as entry points for attackers seeking to compromise the application's security posture.
From an operational impact perspective, this vulnerability poses significant risks to organizations using MapOS for customer management and business operations. Attackers could leverage this flaw to steal user sessions, modify client data, or redirect victims to malicious sites for phishing attacks. The stored nature of the vulnerability means that once exploited, the malicious code persists and affects all users who view the compromised client records, making it particularly dangerous for environments where multiple users access the same data. The vulnerability also undermines the integrity of the application's user interface and can lead to unauthorized data manipulation or exfiltration.
Security professionals should consider this vulnerability in the context of CWE-79 which specifically addresses cross-site scripting flaws in software applications. The ATT&CK framework categorizes this as a web application attack vector under the technique of "Cross-site Scripting" with potential for privilege escalation and data theft. Mitigation strategies should include immediate input validation and output encoding for all user-supplied data, particularly in fields that are rendered in web contexts. Organizations should implement proper sanitization of HTML content, employ Content Security Policy headers, and conduct thorough input validation at both client and server levels. Additionally, regular security assessments and penetration testing should be performed to identify similar vulnerabilities in other application components and ensure comprehensive protection against persistent web application threats.