CVE-2020-8889 in ShipStation.com Plugin
Summary
by MITRE • 03/29/2023
The ShipStation.com plugin 1.0 for CS-Cart allows remote attackers to obtain sensitive information (via action=export) because a typo results in a successful comparison of a blank password and NULL.
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Analysis
by VulDB Data Team • 04/16/2023
The vulnerability identified as CVE-2020-8889 affects the ShipStation.com plugin version 1.0 for CS-Cart e-commerce platforms, representing a critical security flaw that enables remote attackers to gain unauthorized access to sensitive information. This issue stems from a fundamental programming error in the authentication validation mechanism where a typographical mistake in the code logic creates a dangerous condition that bypasses proper credential verification. The vulnerability specifically manifests when attackers exploit the action=export functionality within the plugin, which is typically used for data export operations but becomes a vector for information disclosure due to the flawed authentication routine.
The technical root cause of this vulnerability lies in the improper handling of password validation where a blank password string is compared against a NULL value, creating a condition that evaluates as true due to the programming error. This type of vulnerability falls under the category of weak authentication mechanisms and can be classified as CWE-287 - Improper Authentication, which is a well-documented weakness in software security practices. The flaw demonstrates a classic case of insecure coding practices where developers failed to properly validate user credentials, allowing attackers to bypass authentication entirely by simply submitting empty password fields. The comparison logic that should have rejected blank credentials instead accepts them due to the typo, creating an authentication bypass scenario that undermines the entire security model of the plugin.
The operational impact of this vulnerability is severe and far-reaching for organizations using the affected CS-Cart platform with the ShipStation plugin. Remote attackers can exploit this flaw to access sensitive customer data, order information, shipping details, and potentially financial records that would normally be protected by authentication controls. The vulnerability affects the confidentiality and integrity of the system as unauthorized parties can extract valuable business data without proper authorization, potentially leading to data breaches, financial losses, and regulatory compliance violations. Organizations may face significant reputational damage and legal consequences if customer information is compromised through this vulnerability, particularly in industries subject to strict data protection regulations such as those governed by gdpr or pci dss standards.
The exploitation of this vulnerability aligns with tactics described in the attack pattern taxonomy where attackers target authentication mechanisms as a primary entry point to systems. This approach fits within the broader ATT&CK framework under the initial access and credential access phases, where adversaries seek to obtain valid credentials or bypass authentication controls to gain access to systems and data. The vulnerability represents a particularly dangerous flaw because it requires no sophisticated attack techniques beyond basic web application exploitation methods, making it accessible to attackers with minimal technical expertise. Organizations should consider implementing network monitoring and intrusion detection systems to identify potential exploitation attempts, as the vulnerability may be actively targeted by automated scanning tools that search for known authentication bypass flaws in web applications.
Mitigation strategies for this vulnerability should include immediate patching of the affected plugin to address the typographical error in the authentication logic and ensure proper password validation is implemented. System administrators should also consider implementing additional security controls such as rate limiting on authentication attempts, enhanced monitoring of export functionality, and network segmentation to limit the potential impact of successful exploitation. Organizations using the affected plugin should conduct thorough security assessments of their e-commerce platforms to identify similar vulnerabilities and implement proper input validation practices to prevent similar issues in other components. The fix should ensure that all authentication comparisons properly handle NULL and empty values, implementing robust validation that rejects blank credentials rather than accepting them due to programming errors.