A critical remote code execution vulnerability in GFI Archiver 15.10 poses a severe risk of total system compromise due to an insecure deserialization flaw.

The vulnerability resides in the MArc.Core.Remoting.exe process, which fails to properly validate user-supplied data, leading to the deserialization of untrusted data. While the process typically requires authentication, the vulnerability includes an authentication bypass, effectively allowing unauthenticated remote attackers to execute code with SYSTEM privileges.

Successful exploitation of this vulnerability grants an attacker full control over the affected server with SYSTEM-level privileges. This facilitates complete data exfiltration, lateral movement within the network, and potential disruption of critical archiving services, resulting in significant operational and reputational damage. Given the CVSS score of 8.8, this vulnerability represents a high-severity risk that demands immediate remediation.

Immediate Action: Contact the vendor to obtain the latest security patches for GFI Archiver 15.10 and apply them immediately to all affected installations.

Proactive Monitoring: Monitor network traffic directed at port 8017 for anomalous patterns or unauthorized connection attempts, and review system logs for suspicious process execution.

Compensating Controls: Implement strict network access control lists to restrict access to port 8017 to authorized management IP addresses only, and deploy a Web Application Firewall or intrusion prevention system to filter malicious serialized payloads.

Public Exploit Available: Unknown

The presence of a remote code execution vulnerability that allows for an authentication bypass presents an unacceptable level of risk to organizational infrastructure. Administrators must prioritize patching this vulnerability as soon as a fix is available from GFI. Until a patch is deployed, network-level segmentation to restrict access to the vulnerable remoting service is the most effective method to mitigate exposure.