CVE-2019-19685 in nopCommerce
Summary
by MITRE
RoxyFileman, as shipped with nopCommerce v4.2.0, is vulnerable to CSRF because GET requests can be used for renames and deletions.
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Analysis
by VulDB Data Team • 12/10/2019
The vulnerability identified as CVE-2019-19685 affects RoxyFileman, a file management component that was bundled with nopCommerce version 4.2.0. This issue represents a critical security flaw that undermines the integrity of the file management system by allowing unauthorized operations through Cross-Site Request Forgery attacks. The vulnerability specifically stems from the implementation of file management operations that utilize GET requests for actions that should require more secure authentication mechanisms. When GET requests are used for operations such as file renaming and deletion, they become susceptible to exploitation because these HTTP methods are designed primarily for retrieving data rather than performing state-changing operations.
The technical flaw manifests in the improper handling of file management operations within the RoxyFileman component, where the system fails to implement adequate anti-CSRF protection mechanisms. This design oversight allows malicious actors to craft specially crafted web pages or links that, when visited by authenticated users, automatically execute file renaming or deletion operations without proper user consent or authentication verification. The vulnerability is particularly dangerous because GET requests are often cached by browsers and can be easily triggered through various attack vectors including email attachments, malicious websites, or social engineering campaigns. This weakness directly violates security principles outlined in the OWASP Top Ten, specifically addressing the risk of Cross-Site Request Forgery as categorized under CWE-352.
The operational impact of this vulnerability extends beyond simple file management disruption, as it creates potential for data loss, system compromise, and unauthorized access to sensitive information stored within the file management system. Attackers can exploit this weakness to delete critical files, rename important documents to obscure their purpose, or potentially gain access to sensitive data that might be stored in the file system. The vulnerability affects any user who is authenticated to the nopCommerce system and visits a malicious page, making it particularly dangerous in environments where users frequently browse the internet or receive emails from untrusted sources. This weakness can lead to complete system compromise if attackers can manipulate the file system to include malicious files or remove critical system components.
Mitigation strategies for this vulnerability should focus on implementing proper CSRF protection mechanisms within the RoxyFileman component and the broader nopCommerce application. The most effective approach involves replacing GET requests with POST requests for file management operations, as POST methods are less susceptible to CSRF attacks due to their nature of carrying data in the request body rather than URL parameters. Additionally, implementing anti-CSRF tokens that are validated on each request can provide robust protection against unauthorized operations. Security headers such as Content Security Policy should be configured to limit the sources from which scripts can be loaded, preventing malicious code from executing in the context of authenticated sessions. Organizations should also consider implementing proper input validation and access controls to ensure that only authorized users can perform file management operations, aligning with the principle of least privilege as defined in the NIST Cybersecurity Framework. The vulnerability highlights the importance of following secure coding practices and the necessity of regular security assessments to identify and remediate such weaknesses before they can be exploited in real-world scenarios.