CVE-2018-10598 in CNCSoft
Summary
by MITRE
CNCSoft Version 1.00.83 and prior with ScreenEditor Version 1.00.54 has two out-of-bounds read vulnerabilities could cause the software to crash due to lacking user input validation for processing project files. Which may allow an attacker to gain remote code execution with administrator privileges if exploited.
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Analysis
by VulDB Data Team • 03/15/2020
The vulnerability identified as CVE-2018-10598 affects CNCSoft Version 1.00.83 and earlier versions along with ScreenEditor Version 1.00.54, representing a critical security flaw that stems from inadequate input validation mechanisms within the software's project file processing functionality. This issue manifests as two distinct out-of-bounds read vulnerabilities that can be exploited to cause application crashes and potentially enable remote code execution with elevated privileges. The vulnerability's severity is amplified by the fact that it occurs during the handling of project files, which are commonly used in industrial automation and computer numerical control systems where software reliability is paramount. These vulnerabilities specifically target the software's inability to properly validate user-supplied data during file processing operations, creating a pathway for malicious actors to manipulate the application's memory access patterns.
The technical implementation of this vulnerability involves improper boundary checking within the software's file parsing routines, where the application fails to validate the size or content of incoming project file data before attempting to read from memory locations. According to CWE classification, this represents a variant of CWE-125: Out-of-bounds Read, which occurs when a program reads data past the end of a valid memory buffer. The flaw allows attackers to craft specially malformed project files that trigger memory access violations when the software attempts to process these inputs. The vulnerability's exploitation path typically involves an attacker creating a malicious project file with oversized or malformed data structures that cause the application to access memory locations beyond the allocated buffer boundaries. This type of vulnerability is particularly dangerous in industrial control systems where CNC software operates with administrator privileges, as successful exploitation could lead to complete system compromise.
The operational impact of CVE-2018-10598 extends beyond simple application instability to potentially enable full system compromise when exploited. The vulnerability's potential for remote code execution with administrator privileges makes it particularly dangerous in environments where these applications are deployed, such as manufacturing facilities, automated production lines, and industrial control systems. Attackers could leverage this vulnerability to gain persistent access to critical infrastructure, potentially disrupting production processes, accessing sensitive operational data, or even causing physical damage to equipment. The vulnerability's presence in industrial automation software creates a significant risk to operational technology environments where system availability and integrity are crucial for maintaining production continuity and safety protocols. Organizations relying on CNCSoft and ScreenEditor for their manufacturing processes face potential business disruption and security breaches that could affect their competitive position and regulatory compliance status.
Mitigation strategies for CVE-2018-10598 should prioritize immediate patching of affected software versions, as the vulnerability exists in legacy software that has reached end-of-life support status. Organizations should implement network segmentation to limit access to systems running affected software, deploy intrusion detection systems to monitor for exploitation attempts, and conduct thorough vulnerability assessments of their industrial control environments. The ATT&CK framework categorizes this type of vulnerability under T1203: Exploitation for Client Execution, highlighting the importance of input validation controls and proper error handling mechanisms. Security teams should also consider implementing application whitelisting policies, restricting user privileges when running these applications, and establishing robust backup and recovery procedures to minimize potential impact from successful exploitation attempts. Given the industrial nature of the affected software, organizations should also review their operational technology security practices and ensure proper isolation of critical systems from general network access to reduce attack surface exposure.