CVE-2007-3012 in PRIMERGY BX300
Summary
by MITRE
The web interface in Fujitsu-Siemens Computers PRIMERGY BX300 Switch Blade allows remote attackers to obtain sensitive information by canceling the authentication dialog when accessing a sub-page, which still displays the form field contents of the sub-page, as demonstrated using (1) config/ip_management.htm and (2) config/snmp_config.htm.
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Analysis
by VulDB Data Team • 10/27/2017
The vulnerability identified as CVE-2007-3012 represents a critical information disclosure flaw within the web interface of Fujitsu-Siemens Computers PRIMERGY BX300 Switch Blade network equipment. This vulnerability stems from improper session management and authentication handling mechanisms that fail to adequately protect sensitive configuration data when authentication is terminated prematurely. The flaw specifically manifests when remote attackers exploit the authentication dialog cancellation process to access sub-pages that should otherwise be protected, thereby exposing confidential system information through the display of form field contents.
The technical implementation of this vulnerability involves a failure in the web application's access control mechanisms and session state management. When users attempt to access protected administrative pages such as config/ip_management.htm and config/snmp_config.htm, the system does not properly validate authentication status upon dialog cancellation. This allows unauthorized access to sensitive configuration parameters and system settings that are typically restricted to authenticated administrators. The vulnerability operates at the application layer and represents a classic case of inadequate authentication enforcement, which can be categorized under CWE-285 - Improper Authorization and CWE-312 - Cleartext Storage of Sensitive Information.
The operational impact of this vulnerability extends beyond simple information disclosure, as it provides attackers with access to critical network configuration data that could be leveraged for further exploitation. The exposed information includes IP management settings and SNMP configuration details that could reveal network topology, device identification, and potentially enable attackers to establish unauthorized access to the network infrastructure. This vulnerability aligns with ATT&CK technique T1087 - Account Discovery and T1566 - Phishing, as it could be exploited through social engineering to gain access to sensitive information or through direct network exploitation. The exposure of SNMP configuration data particularly raises concerns as it may contain community strings and other credentials that could provide additional attack vectors for lateral movement within the network.
Mitigation strategies for this vulnerability should focus on implementing proper session management controls and ensuring that all sensitive data is adequately protected even when authentication dialogs are canceled. Organizations should immediately apply vendor-provided security patches or firmware updates that address this specific authentication bypass flaw. Additionally, implementing network segmentation and access controls can limit the potential impact of such vulnerabilities by restricting direct access to administrative interfaces. The remediation approach should include comprehensive testing of authentication mechanisms to ensure that all pages properly validate access controls regardless of authentication state. Network administrators should also consider implementing web application firewalls and monitoring solutions to detect and prevent exploitation attempts targeting this specific vulnerability pattern, which aligns with ATT&CK technique T1562 - Impair Defenses and emphasizes the importance of layered security controls.