CVE-2007-2421 in Groupmax Mobile Option
Summary
by MITRE
Buffer overflow in Hitachi Groupmax Mobile Option for Mobile-Phone 07-00 through 07-30, 5 for i-mode 05-11 through 05-23, and 6 for EZweb 06-00 through 06-04 allows remote attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 10/14/2017
The vulnerability identified as CVE-2007-2421 represents a critical buffer overflow flaw affecting Hitachi Groupmax Mobile Option software versions ranging from 07-00 through 07-30 for mobile phones, 5 for i-mode versions 05-11 through 05-23, and 6 for EZweb versions 06-00 through 06-04. This vulnerability resides within mobile telecommunications infrastructure software that processes mobile phone communications and data transmission protocols. The buffer overflow condition occurs when the software fails to properly validate input data length before copying it into fixed-size memory buffers, creating exploitable memory corruption conditions that can be leveraged by remote attackers.
The technical implementation of this vulnerability stems from insufficient bounds checking mechanisms within the mobile option software modules responsible for handling incoming data packets from mobile devices. When maliciously crafted data packets are transmitted to affected systems, the software's memory management routines fail to verify that input data fits within allocated buffer boundaries. This fundamental flaw allows attackers to overwrite adjacent memory locations, potentially corrupting program execution flow and enabling arbitrary code execution. The vulnerability's remote exploitability means that attackers do not require physical access to the target system, making it particularly dangerous for mobile network infrastructure. According to CWE classification, this represents a classic buffer overflow vulnerability categorized under CWE-121, which specifically addresses heap-based buffer overflow conditions.
The operational impact of this vulnerability extends beyond simple code execution capabilities to encompass complete system compromise of affected mobile network infrastructure. Remote attackers could potentially gain unauthorized access to mobile communication networks, enabling them to intercept communications, manipulate data transmission, or establish persistent backdoors within the mobile network ecosystem. The affected Hitachi Groupmax Mobile Option software serves as a critical component in mobile telecommunications, making this vulnerability particularly concerning for network operators and mobile service providers. The vulnerability's scope includes multiple software versions across different mobile network protocols, suggesting a widespread impact across various mobile telecommunications standards including i-mode and EZweb services.
Mitigation strategies for this vulnerability require immediate patching of affected software versions and implementation of network monitoring to detect potential exploitation attempts. System administrators should prioritize updating all affected Hitachi Groupmax Mobile Option installations to the latest security patches provided by Hitachi. Network segmentation and firewall rules should be implemented to restrict access to vulnerable systems, while intrusion detection systems should be configured to monitor for unusual data packet patterns that might indicate exploitation attempts. The vulnerability's classification under ATT&CK technique T1059.007 for command and scripting interpreter indicates that attackers could leverage this vulnerability to execute malicious commands within the compromised system. Organizations should also implement comprehensive network traffic analysis to identify anomalous communication patterns that might suggest exploitation of this buffer overflow condition. Given the nature of mobile telecommunications infrastructure, regular security assessments and vulnerability scanning should be conducted to ensure continued protection against similar vulnerabilities in the mobile network ecosystem.