CVE-2025-12507

8.8

Bizerba · Communication Server (BCS)

The Bizerba Communication Server (BCS) contains an unquoted service path vulnerability that allows for potential local privilege escalation via malicious executable placement.

Executive summary

Bizerba Communication Server (BCS) is vulnerable to a local privilege escalation flaw due to an unquoted service path, which could allow an attacker with local access to execute arbitrary code.

Vulnerability

The application suffers from an unquoted service path (CWE-428), where the Windows service path contains spaces without proper quotation marks. This allows a local, authenticated attacker to place a malicious executable in a parent directory, which the system may then execute with elevated privileges when the service starts.

Business impact

Successful exploitation of this vulnerability permits a local user to escalate privileges to the level of the service account, which often runs with high system permissions. This could result in a full compromise of the affected host, leading to unauthorized data access, modification of system configurations, or disruption of business operations. Given the CVSS score of 8.8, this flaw represents a significant risk to internal server security.

Remediation

Immediate Action: Update the Bizerba _connect.BRAIN software to version 5.02 or later as recommended by the vendor.

Proactive Monitoring: Monitor system logs for the execution of unexpected binaries or services initiated from non-standard directories on the server.

Compensating Controls: If immediate patching is not feasible, ensure that standard users do not have write permissions to the installation directories or the parent paths where the service executable resides.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

This vulnerability presents a high-severity risk to local system integrity. Administrators should prioritize upgrading to version 5.02 immediately to eliminate the unquoted service path flaw. If an update cannot be applied right away, verify file system permissions to ensure that unauthorized local users cannot place files within the path of the vulnerable service.

Sources