CVE-2013-4778 in Enterprise OpenScape Branch
Summary
by MITRE
core/getLog.php on the Siemens Enterprise OpenScape Branch appliance and OpenScape Session Border Controller (SBC) before 2 R0.32.0, and 7 before 7 R1.7.0, allows remote attackers to obtain sensitive server and statistics information via unspecified vectors.
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Analysis
by VulDB Data Team • 02/26/2018
The vulnerability identified as CVE-2013-4778 affects Siemens Enterprise OpenScape Branch appliances and Session Border Controllers, specifically targeting the core/getLog.php component. This issue represents a significant information disclosure flaw that enables remote attackers to access sensitive server and statistics information without authentication. The affected versions include OpenScape Branch appliances before 2 R0.32.0 and 7 before 7 R1.7.0, highlighting the widespread nature of this vulnerability across multiple product lines within Siemens' enterprise communication infrastructure. The unspecified vectors suggest that the vulnerability could be exploited through various attack surfaces, potentially including direct web interface access or through manipulated API calls that bypass normal authentication mechanisms.
The technical flaw manifests in the improper handling of requests to the getLog.php script, which should have implemented robust access controls and authorization checks. This vulnerability directly maps to CWE-200, which describes improper exposure of sensitive information, and represents a classic case of insufficient access control where the system fails to properly verify that requests originate from authorized users or systems. The flaw essentially allows unauthenticated access to server logs and statistical data that would normally be restricted to administrative users, potentially exposing system configurations, user activities, network traffic patterns, and other operational details that could aid in subsequent attacks.
The operational impact of this vulnerability extends beyond simple information disclosure, as the leaked server and statistics information could provide attackers with critical intelligence for planning more sophisticated attacks. The exposed data might include system uptime information, user connection patterns, network performance metrics, and potentially even configuration details that could reveal system vulnerabilities or misconfigurations. This information disclosure could facilitate reconnaissance activities and enable attackers to tailor their approach based on actual system characteristics rather than generic assumptions, significantly increasing the effectiveness of potential exploitation attempts.
Organizations using affected Siemens appliances should immediately implement mitigations including applying the vendor-provided patches, which would typically involve updating to versions 2 R0.32.0 or 7 R1.7.0 and higher. Network segmentation and access control measures should be strengthened to limit exposure of these systems to untrusted networks, while monitoring should be enhanced to detect unusual access patterns to log files. The vulnerability also aligns with ATT&CK technique T1083, which covers discovering file and directory permissions, and T1005, which involves data from local system. Security teams should conduct thorough network scans to identify all affected devices and ensure proper patch management procedures are in place to prevent similar vulnerabilities from occurring in the future.