CVE-2020-37229

Oki · OKI sPSV Port Manager

The OKI sPSV Port Manager contains an unquoted service path vulnerability, enabling local attackers to perform privilege escalation.

Executive summary

Local attackers can escalate privileges on systems running OKI sPSV Port Manager due to an unquoted service path vulnerability.

Vulnerability

The software is vulnerable to an Unquoted Search Path (CWE-428) issue, where the service path is not enclosed in quotes. This allows an authenticated local user to manipulate the service execution environment and elevate their privileges.

Business impact

With a CVSS score of 7.8, this vulnerability allows a local attacker to bypass standard security restrictions and execute arbitrary commands with SYSTEM-level privileges. This poses a significant threat to the integrity of the host and the security of data managed within the environment.

Remediation

Immediate Action: Check with Oki for official updates. In the absence of a vendor patch, manually adjust the service path registry entries to ensure they are properly quoted.

Proactive Monitoring: Monitor for suspicious file modifications in directories where services reside. Use log analysis to detect unauthorized attempts to modify service configurations.

Compensating Controls: Restrict write access to the service directories and ensure that standard users do not have administrative rights. Deploy security tools that monitor for process-level anomalies.

Exploitation status

Public Exploit Available: Yes — an entry exists on ExploitDB.

Analyst recommendation

Organizations must treat this vulnerability with high priority, especially on multi-user systems or workstations. Ensure that the software is updated if a patch is released, or apply the necessary registry modifications to mitigate the risk of local privilege escalation.