CVE-2014-8393 in CorelDRAW X7
Summary
by MITRE
DLL Hijacking vulnerability in CorelDRAW X7, Corel Photo-Paint X7, Corel PaintShop Pro X7, Corel Painter 2015, and Corel PDF Fusion.
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Analysis
by VulDB Data Team • 07/28/2025
The CVE-2014-8393 vulnerability represents a significant dll hijacking flaw affecting multiple Corel software applications including CorelDRAW X7, Corel Photo-Paint X7, Corel PaintShop Pro X7, Corel Painter 2015, and Corel PDF Fusion. This vulnerability stems from improper dynamic link library loading mechanisms within these applications, creating opportunities for malicious code execution through the manipulation of the dynamic link library search order. The flaw allows attackers to place malicious dll files in directories that are searched before the legitimate system directories, effectively enabling privilege escalation and code execution. This issue directly maps to common weakness enumeration cwes 426 and 749, which address unsafe dynamic code loading and dangerous functions in software development practices. The vulnerability operates under the attack technique described in the mitre att&ck framework as technique t1059 007 for windows command shell and technique t1574 002 for hijacking execution flow through dynamic link libraries. The impact of this vulnerability extends beyond simple privilege escalation to include potential data exfiltration and system compromise, as attackers can leverage the loaded malicious libraries to perform unauthorized operations.
The technical implementation of this vulnerability exploits the windows dynamic link library search order mechanism where applications first search in the current working directory, followed by system directories, and finally the path environment variable. When these Corel applications are executed, they may inadvertently load malicious dlls from the current directory or other insecure locations, particularly when the software is launched from untrusted directories or when users open files from potentially compromised sources. This behavior creates a window of opportunity for attackers who can place malicious dll files with the same names as legitimate libraries that the applications expect to load. The vulnerability is particularly dangerous because it does not require elevated privileges to exploit, as the applications themselves may run with standard user permissions, yet the malicious code execution can occur within the context of the target application. The flaw is classified as a type of software supply chain attack where the integrity of the application execution environment is compromised through manipulation of the library loading process.
The operational impact of CVE-2014-8393 extends beyond individual system compromise to encompass enterprise network security vulnerabilities, particularly in environments where these Corel applications are widely deployed. Organizations using these applications may face significant risk exposure when users open documents or files from untrusted sources, as the vulnerability can be triggered through simple user interaction. The attack vector typically involves social engineering campaigns where users are tricked into opening malicious files or documents that contain the malicious dll payload in the same directory as the target application. This vulnerability is particularly concerning for creative professionals who frequently handle documents from external sources, as it can be exploited through routine business processes. The risk is compounded by the fact that these applications are commonly used in business environments where they may have elevated privileges or access to sensitive data, making the potential impact of exploitation significantly higher than in typical user scenarios.
Mitigation strategies for CVE-2014-8393 should include immediate patching of affected software versions, which Corel has addressed through subsequent security updates. System administrators should implement application whitelisting policies to restrict which dll files can be loaded by these applications, particularly by configuring the application's directory permissions to prevent unauthorized dll placement. Network segmentation and user access controls should be enhanced to limit the ability of attackers to place malicious files in directories accessible to these applications. The implementation of secure coding practices should be enforced within the organization to prevent similar vulnerabilities in custom applications, including the use of absolute paths for library loading and proper validation of library sources. Additionally, security awareness training should be provided to users to recognize potential social engineering attempts that could exploit this vulnerability. Monitoring systems should be configured to detect suspicious dll loading activities and unusual file placement patterns in directories where these applications operate. The vulnerability also highlights the importance of regular security assessments and vulnerability scanning to identify similar issues in other legacy applications within the enterprise environment.