CVE-2011-0745 in SugarCRM
Summary
by MITRE
SugarCRM before 6.1.3 does not properly handle reloads and direct requests for a warning page produced by a certain duplicate check, which allows remote authenticated users to discover (1) the names of customers via a ShowDuplicates action to the Accounts module, reachable through index.php; or (2) the names of contact persons via a ShowDuplicates action to the Contacts module, reachable through index.php.
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Analysis
by VulDB Data Team • 01/19/2025
This vulnerability exists in SugarCRM versions prior to 6.1.3 and represents a sensitive data exposure issue that stems from improper handling of duplicate check warning pages during application reloads and direct requests. The flaw specifically affects the Accounts and Contacts modules within the SugarCRM application, where the system fails to properly validate or sanitize user requests when processing duplicate detection functionality. When authenticated users trigger duplicate checking through the ShowDuplicates action endpoint, the application generates warning pages that inadvertently expose sensitive information about customer and contact records.
The technical implementation of this vulnerability involves the application's failure to properly restrict access to duplicate detection results during page reload scenarios or direct URL access patterns. When users navigate to the Accounts or Contacts modules and initiate duplicate checking operations, the system generates warning pages containing partial information about existing records. These warning pages are not adequately protected against unauthorized access, allowing authenticated users to bypass normal access controls and retrieve information about customer and contact names that should otherwise be restricted.
The operational impact of this vulnerability extends beyond simple information disclosure, as it enables attackers to gather intelligence about the organization's customer base and contact directory. This reconnaissance capability can serve as a foundation for more sophisticated attacks, including social engineering campaigns, targeted phishing attempts, or further exploitation of the application. The vulnerability affects authenticated users, meaning that an attacker would need valid credentials to exploit this issue, but the low barrier to entry and high information value make it particularly concerning from a security perspective.
From a cybersecurity framework perspective, this vulnerability maps to CWE-200 (Information Exposure) and CWE-22 (Path Traversal) categories, representing both information disclosure and improper access control issues. The attack pattern aligns with ATT&CK technique T1213.002 (Data from Information Repositories) and T1566.001 (Phishing with Social Engineering) as it enables the collection of sensitive data that can be used for further social engineering attacks. The vulnerability demonstrates a lack of proper input validation and access control enforcement within the application's duplicate detection mechanism.
Organizations should implement immediate mitigations including updating to SugarCRM version 6.1.3 or later, where the duplicate check functionality has been properly secured. Additional protective measures include implementing stricter access controls for duplicate detection endpoints, adding request validation for ShowDuplicates actions, and monitoring for unusual patterns of duplicate checking activity. Network-level protections such as web application firewalls can help detect and block suspicious requests targeting these endpoints, while regular security audits should verify that similar issues do not exist in other modules or application components. The vulnerability highlights the importance of proper input sanitization and access control validation, particularly in modules that handle sensitive data operations like duplicate detection and record management.