CVE-2012-5884 in Bugzilla
Summary
by MITRE
The User.get method in Bugzilla/WebService/User.pm in Bugzilla 4.3.2 allows remote attackers to obtain sensitive information about the saved searches of arbitrary users via an XMLRPC request or a JSONRPC request, a different vulnerability than CVE-2012-4198.
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Analysis
by VulDB Data Team • 05/01/2018
The vulnerability identified as CVE-2012-5884 resides within the Bugzilla web service implementation, specifically in the User.get method located in Bugzilla/WebService/User.pm. This flaw represents a significant information disclosure vulnerability that affects Bugzilla version 4.3.2, allowing unauthorized remote attackers to access sensitive user data through legitimate web service interfaces. The vulnerability specifically targets the saved searches functionality of arbitrary user accounts, exposing confidential information that should remain private to individual users.
The technical implementation flaw stems from insufficient input validation and access control mechanisms within the XMLRPC and JSONRPC interfaces. When legitimate service requests are made to the User.get method, the system fails to properly authenticate or authorize the requesting user against the target user account whose saved searches are being accessed. This allows an attacker to craft malicious requests that bypass normal access controls and retrieve saved search configurations from any user account within the Bugzilla instance, regardless of whether they possess legitimate credentials for that specific user.
From an operational impact perspective, this vulnerability creates substantial security risks for organizations utilizing Bugzilla for issue tracking and project management. The exposure of saved searches can reveal sensitive information about user work patterns, project priorities, and potentially confidential issue tracking behaviors. Attackers could leverage this information to identify high-value targets, understand organizational workflows, or even craft more sophisticated social engineering attacks. The vulnerability is particularly concerning because it operates through standard web service protocols that are typically enabled and accessible in production environments, making it easily exploitable without requiring specialized tools or deep system knowledge.
The attack vector for CVE-2012-5884 operates through both XMLRPC and JSONRPC interfaces, providing attackers with multiple pathways to exploit the vulnerability. This dual protocol support increases the attack surface and makes the vulnerability more difficult to defend against, as organizations may have different security controls in place for each protocol type. The vulnerability is categorized under CWE-200, Information Disclosure, which specifically addresses the improper exposure of sensitive information, and aligns with ATT&CK technique T1213.002 for Data from Information Repositories, demonstrating how attackers can systematically extract valuable intelligence from software systems.
Organizations should implement immediate mitigations including restricting access to XMLRPC and JSONRPC interfaces through network firewalls, implementing proper authentication and authorization checks within the web service layer, and ensuring that all user accounts have appropriate access controls. The recommended remediation involves upgrading to patched versions of Bugzilla where the access controls have been properly implemented to prevent unauthorized access to user data. Additionally, security monitoring should be enhanced to detect anomalous patterns in web service requests that might indicate exploitation attempts, particularly those targeting user data retrieval functions.