CVE-2008-4587 in FLEXnet Connect
Summary
by MITRE
Insecure method vulnerability in the MSVNClientDownloadManager61Lib.DownloadManager.1 ActiveX control (ISDM.exe 6.1.100.61372) in Macrovision FLEXnet Connect 6.1 allows remote attackers to force the download and execution of arbitrary files via the AddFile and RunScheduledJobs methods. NOTE: this could be leveraged for code execution by uploading executable files to Startup folders.
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Analysis
by VulDB Data Team • 10/14/2024
The vulnerability described in CVE-2008-4587 represents a critical insecure method flaw within the Macrovision FLEXnet Connect 6.1 ActiveX control, specifically affecting the MSVNClientDownloadManager61Lib.DownloadManager.1 component. This ActiveX control is part of a broader software distribution and licensing system that enables automated software updates and management. The vulnerability manifests through two primary methods: AddFile and RunScheduledJobs, which together create a dangerous attack vector that can be exploited remotely by malicious actors. The issue stems from the lack of proper input validation and access controls within these methods, allowing unauthorized file operations to be executed on vulnerable systems. The vulnerability affects ISDM.exe version 6.1.100.61372, which is the executable responsible for managing download operations within the FLEXnet Connect framework.
The technical exploitation of this vulnerability involves leveraging the insecure AddFile method to force the download of arbitrary files from remote locations and the RunScheduledJobs method to execute these files automatically. This combination creates a complete attack chain that can bypass typical security controls, as the ActiveX control operates with elevated privileges and can interact directly with the Windows file system. The attack scenario becomes particularly dangerous when attackers upload malicious executables to system startup folders, enabling persistent execution and system compromise. The vulnerability essentially allows an attacker to inject arbitrary code into a target system without requiring user interaction, as the download and execution occur automatically through the scheduled job mechanism. This type of vulnerability is classified under CWE-20 as "Improper Input Validation" and represents a classic example of insecure direct object reference in ActiveX controls.
The operational impact of this vulnerability extends far beyond simple code execution, as it provides attackers with persistent access to compromised systems and the ability to establish footholds within enterprise environments. When combined with the ability to place files in startup folders, attackers can ensure that malicious payloads execute automatically upon system reboot, creating a stealthy persistence mechanism. The vulnerability affects systems running Macrovision FLEXnet Connect 6.1, which was commonly deployed in enterprise environments for software license management and distribution. This creates a significant risk for organizations that have not updated their systems, as the attack can be initiated remotely without requiring physical access or user interaction. The attack vector is particularly concerning because ActiveX controls are often enabled by default in Internet Explorer, making exploitation possible through web-based attacks. This vulnerability aligns with ATT&CK technique T1197 for "Browser Extensions' and represents a significant threat to enterprise security posture.
Mitigation strategies for this vulnerability should focus on immediate remediation through software updates and patches provided by Macrovision, as well as network-level controls to prevent access to known malicious domains. Organizations should disable ActiveX controls in web browsers where possible, particularly in environments where the software is not required for legitimate business operations. System administrators should implement strict access controls and monitoring around startup folders, as well as conduct regular vulnerability assessments to identify other potentially vulnerable ActiveX controls. The vulnerability demonstrates the importance of proper input validation and privilege management in software components, particularly those that operate with elevated system permissions. Security teams should also consider implementing network segmentation and application whitelisting policies to prevent automatic execution of downloaded files, which would significantly reduce the impact of such vulnerabilities. Additionally, regular security awareness training for users can help prevent accidental exploitation through social engineering attacks that might leverage this vulnerability.