CVE-2014-9205 in PROMOTIC
Summary
by MITRE
Stack-based buffer overflow in the PmBase64Decode function in an unspecified demonstration application in MICROSYS PROMOTIC stable before 8.2.19 and PROMOTIC development before 8.3.2 allows remote attackers to execute arbitrary code by providing a large amount of data.
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Analysis
by VulDB Data Team • 06/29/2017
The vulnerability identified as CVE-2014-9205 represents a critical stack-based buffer overflow flaw within the PmBase64Decode function of MICROSYS PROMOTIC demonstration applications. This issue affects both the stable version prior to 8.2.19 and the development version prior to 8.3.2, creating a significant security risk for systems utilizing these software components. The vulnerability manifests when the application processes Base64 encoded data without proper bounds checking, allowing malicious actors to exploit the insufficient input validation mechanisms. The flaw resides in the demonstration application rather than the core PROMOTIC platform, yet it demonstrates the broader security implications of inadequate memory management practices in industrial automation software environments. This vulnerability directly aligns with CWE-121, which categorizes stack-based buffer overflow conditions that occur when insufficient bounds checking allows data to overwrite adjacent stack memory locations.
The technical exploitation of this vulnerability occurs through the manipulation of input data provided to the PmBase64Decode function, where attackers can supply excessive data that exceeds the allocated stack buffer size. When the function processes this oversized input, it overflows the stack buffer and potentially overwrites adjacent memory locations including return addresses and function parameters. This memory corruption enables remote attackers to execute arbitrary code with the privileges of the affected application process, effectively providing a remote code execution capability. The attack vector is particularly concerning because it requires no authentication or local access, making it accessible to any remote attacker who can send data to the vulnerable application. The vulnerability's impact is amplified by the nature of demonstration applications, which are often deployed in production environments without proper security hardening, and the fact that such applications may be accessible over network interfaces.
The operational impact of this vulnerability extends beyond simple code execution, as it can compromise the entire industrial control system environment where PROMOTIC applications operate. The exploitation of this vulnerability could lead to complete system compromise, allowing attackers to gain unauthorized access to critical infrastructure control systems, manipulate process data, or disrupt operations. The vulnerability affects industrial automation and control systems where PROMOTIC is commonly deployed, potentially impacting manufacturing processes, power generation, and other critical infrastructure sectors. Organizations using vulnerable versions of PROMOTIC may face significant operational disruptions and security breaches that could result in financial losses, safety hazards, or regulatory compliance violations. The vulnerability's presence in demonstration applications also indicates poor security practices in software development, where adequate input validation and memory management techniques were not implemented or tested properly.
Mitigation strategies for CVE-2014-9205 should prioritize immediate software updates to versions 8.2.19 or 8.3.2, respectively, which contain the necessary patches to address the buffer overflow condition. Organizations should also implement network segmentation to limit access to vulnerable demonstration applications and deploy intrusion detection systems to monitor for exploitation attempts. Additional defensive measures include input validation at network boundaries, implementing proper access controls to restrict who can interact with the vulnerable components, and conducting thorough security assessments of all industrial automation software deployments. The vulnerability's classification under ATT&CK technique T1059.007 for command and scripting interpreter indicates that attackers may leverage this vulnerability to establish persistent access through command execution capabilities. Security teams should also consider implementing application whitelisting policies and regular security audits to prevent similar vulnerabilities from emerging in other components of their industrial control systems. The remediation process must include comprehensive testing of patched versions to ensure that the vulnerability has been properly addressed without introducing regressions in application functionality.