CVE-2018-10602 in LeviStudio
Summary
by MITRE
WECON LeviStudio Versions 1.8.29 and 1.8.44 have multiple stack-based buffer overflow vulnerabilities that can be exploited when the application processes specially crafted project files.
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Analysis
by VulDB Data Team • 03/27/2020
The vulnerability identified as CVE-2018-10602 affects WECON LeviStudio software versions 1.8.29 and 1.8.44, representing a critical stack-based buffer overflow issue that arises during the processing of maliciously crafted project files. This flaw resides within the application's file parsing mechanisms and demonstrates the classic characteristics of a buffer overflow vulnerability where insufficient bounds checking allows an attacker to write data beyond the allocated memory buffer space. The vulnerability specifically impacts the software's ability to handle malformed project files, creating opportunities for arbitrary code execution within the context of the running application.
The technical implementation of this vulnerability stems from improper input validation within the project file parser component of LeviStudio. When the application encounters specially crafted project files containing oversized data structures or malformed headers, the buffer management routines fail to properly validate the input lengths before copying data into fixed-size memory buffers on the stack. This condition creates a predictable overflow scenario where attacker-controlled data can overwrite adjacent stack memory locations including return addresses, function pointers, and local variables. The CWE-121 classification applies directly to this vulnerability as it represents a classic stack-based buffer overflow where the program writes beyond the bounds of a stack allocated buffer, leading to potential code execution.
The operational impact of CVE-2018-10602 extends beyond simple denial of service conditions to encompass full system compromise capabilities. An attacker who successfully exploits this vulnerability can execute arbitrary code with the privileges of the affected application user, potentially leading to complete system takeover. The attack vector requires the victim to open a malicious project file, making this a typical social engineering target that could be delivered through email attachments, compromised websites, or malicious file sharing platforms. The vulnerability affects users who work with project files, making it particularly dangerous in industrial control environments where LeviStudio is commonly deployed for process monitoring and control system configuration.
Mitigation strategies for this vulnerability should focus on immediate software updates and operational security measures. The primary remediation involves upgrading to a patched version of WECON LeviStudio that addresses the buffer overflow conditions through proper input validation and bounds checking mechanisms. Organizations should implement strict file validation procedures and consider deploying application whitelisting solutions to prevent execution of untrusted project files. Network segmentation and privilege separation can help limit the potential impact if exploitation occurs, while regular security assessments of industrial control systems should include vulnerability scanning for similar buffer overflow conditions. The ATT&CK framework's T1203 technique applies to this vulnerability as it represents a malicious file execution attack that leverages software vulnerabilities for privilege escalation and system compromise. Additionally, implementing memory protection mechanisms such as stack canaries and address space layout randomization can provide defense-in-depth protection against exploitation attempts.