CVE-2009-4772 in Ubercart
Summary
by MITRE
Unspecified vulnerability in the PayPal Website Payments Standard functionality in the Ubercart module 5.x before 5.x-1.9 and 6.x before 6.x-2.1 for Drupal, when a custom checkout completion message is enabled, allows attackers to obtain sensitive information via unknown vectors.
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Analysis
by VulDB Data Team • 01/29/2019
The vulnerability identified as CVE-2009-4772 affects the Ubercart module for Drupal, specifically impacting versions 5.x prior to 5.x-1.9 and 6.x prior to 6.x-2.1. This issue resides within the PayPal Website Payments Standard functionality and becomes exploitable when a custom checkout completion message is enabled in the system configuration. The unspecified nature of the vulnerability vectors suggests that attackers could potentially leverage multiple attack surfaces to extract sensitive information from the affected system.
The technical flaw manifests in the improper handling of sensitive data during the payment processing workflow within the Ubercart module. When a custom checkout completion message is configured, the system fails to adequately sanitize or restrict access to payment-related information that should remain confidential. This weakness creates an information disclosure vulnerability that could potentially expose payment transaction details, customer information, or other sensitive data that should be protected during the checkout process. The vulnerability operates at the application level and represents a failure in input validation and output sanitization mechanisms within the Drupal module architecture.
The operational impact of this vulnerability extends beyond simple information disclosure, as it could enable attackers to gain insights into payment processing workflows and potentially facilitate more sophisticated attacks. Attackers might use the leaked information to construct targeted attacks against payment systems, identify payment processing patterns, or exploit additional vulnerabilities within the same payment infrastructure. The vulnerability affects systems that rely on Drupal's Ubercart module for e-commerce functionality, particularly those processing payments through PayPal Website Payments Standard, making it a significant concern for online retailers and service providers.
Security mitigations for this vulnerability include immediate upgrading to the patched versions of the Ubercart module, specifically 5.x-1.9 and 6.x-2.1, which contain the necessary code fixes to address the information disclosure issue. Organizations should also review their custom checkout completion message configurations and disable unnecessary custom messages until the vulnerability is fully addressed. Additionally, implementing proper access controls and input validation measures within the Drupal environment can help reduce the attack surface. This vulnerability aligns with CWE-200, which covers information exposure, and could potentially map to ATT&CK techniques related to credential access and reconnaissance activities. System administrators should also consider implementing network monitoring to detect unusual access patterns that might indicate exploitation attempts.