CVE-2020-4264 in i2 Intelligent Analyis Platform
Summary
by MITRE
IBM i2 Intelligent Analyis Platform 9.2.1 could allow a local attacker to execute arbitrary code on the system, caused by a memory corruption. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 175647.
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Analysis
by VulDB Data Team • 10/18/2020
The vulnerability identified as CVE-2020-4264 affects IBM i2 Intelligent Analysis Platform version 9.2.1, representing a critical memory corruption flaw that enables local privilege escalation. This vulnerability stems from inadequate input validation within the application's file processing mechanisms, specifically when handling specially crafted files that trigger memory corruption conditions. The flaw exists in the platform's file parsing functionality, where insufficient bounds checking and memory management controls allow malicious input to overwrite critical memory segments. Attackers can exploit this weakness by enticing victims to open malicious files, which then execute arbitrary code with elevated privileges. The vulnerability's impact is significant as it allows local attackers to gain system-level access without requiring remote network connectivity, making it particularly dangerous in environments where users may encounter untrusted files. The memory corruption occurs during file parsing operations, potentially leading to code execution in the context of the running application process. This type of vulnerability falls under the CWE-121 category of Stack-based Buffer Overflow, though the specific implementation details suggest a more complex memory corruption scenario. The attack vector requires user interaction through file opening, which aligns with social engineering tactics commonly employed in targeted attacks. The vulnerability's exploitation capability extends beyond simple code execution to potentially enable full system compromise.
The technical implementation of this vulnerability demonstrates a classic memory corruption issue where the application fails to properly validate file content before processing. When the platform encounters a specially crafted file, the parsing routine does not adequately check for buffer overflows or memory boundary violations, allowing an attacker to manipulate memory layout and redirect execution flow. The memory corruption manifests during file deserialization or parsing operations, where the application's internal data structures become corrupted through improper memory management. This corruption enables attackers to inject and execute malicious code within the application's memory space, potentially escalating privileges to the system level. The vulnerability's exploitation requires the victim to perform an action that triggers the vulnerable code path, typically through opening a file that contains malicious payload structures. The attack leverages the platform's legitimate file processing capabilities to execute malicious code, making detection more challenging. The memory corruption occurs in a way that can bypass standard security controls, as the malicious code executes within the legitimate application context rather than through external network connections. This type of vulnerability represents a significant concern for enterprise environments where users may encounter untrusted files through various channels.
The operational impact of CVE-2020-4264 extends beyond immediate code execution capabilities to encompass potential data breaches, system compromise, and unauthorized access to sensitive information. Organizations utilizing IBM i2 Intelligent Analysis Platform may face severe consequences including unauthorized data access, system disruption, and potential lateral movement within network environments. The vulnerability's local exploitation requirement means that attackers need to already have access to the target system, but once exploited, they can gain elevated privileges and access to system resources. This makes the vulnerability particularly dangerous in environments where multiple users have access to the platform or where administrative credentials are compromised. The potential for privilege escalation means that attackers could gain access to critical system functions, data repositories, and network resources that would otherwise be protected. The vulnerability's exploitation can result in persistent access to systems, enabling long-term surveillance and data exfiltration operations. Organizations may experience service disruption, data loss, and compliance violations due to unauthorized access to sensitive analytical data. The attack scenario typically involves social engineering elements where users are tricked into opening malicious files, making user education and awareness critical components of mitigation strategies.
Mitigation strategies for CVE-2020-4264 should focus on both immediate patching and operational security enhancements. IBM has released patches and updates to address this vulnerability, which organizations should deploy immediately to prevent exploitation. The patching process should include thorough testing in development environments before deployment to production systems to ensure compatibility with existing workflows. Organizations should implement strict file validation controls and restrict user access to file processing capabilities where possible. Network segmentation and access controls can limit the potential impact of successful exploitation attempts. Regular security assessments and vulnerability scanning should include checks for this specific vulnerability to identify unpatched systems. The implementation of application whitelisting and sandboxing mechanisms can provide additional protection against exploitation attempts. Security monitoring should include detection of unusual file processing activities and potential memory corruption indicators. User education and awareness programs should emphasize the dangers of opening untrusted files and the importance of verifying file sources. The vulnerability's characteristics align with ATT&CK techniques involving privilege escalation and execution through legitimate user processes, making behavioral monitoring critical for detection. Organizations should also consider implementing endpoint protection solutions that can detect and block malicious file execution attempts. Regular updates to security policies and procedures should address the specific risks associated with file processing vulnerabilities in analytical platforms. The mitigation approach should integrate both preventive measures such as patch management and detective controls like security monitoring and user behavior analysis to create comprehensive protection against this vulnerability.