CVE-2020-37229: OKI sPSV Port Manager 1.0.41 Unquoted Service Path Privilege Escalation
OKI sPSV Port Manager 1.0.41 contains an unquoted service path vulnerability in the sPSVOpLclSrv service that allows local attackers to escalate privileges by inserting executable files into the unquoted path. Attackers can place a malicious executable in a directory within the service path that will execute with LocalSystem privileges when the service restarts or the system reboots.
Security readout for executives and security teams
Plain-English summary
OKI sPSV Port Manager 1.0.41 has a Windows service configuration flaw. A user who already has local access may be able to gain full system privileges when the service restarts or the computer reboots. This is a local privilege escalation issue, not a remote internet-facing vulnerability.
Executive priority
Treat as high priority where the software is installed on multi-user or sensitive systems. It can turn limited local access into full system control, but it does not appear to be remotely exploitable from the provided sources.
Technical view
The sPSVOpLclSrv service uses an unquoted service path. Under Windows service path parsing behavior, a low-privileged local attacker may place an executable in a reachable path location and have it run as LocalSystem during service restart or reboot. The issue is classified as CWE-428 and affects OKI sPSV Port Manager 1.0.41.
Likely exposure
Exposure is limited to Windows systems with OKI sPSV Port Manager version 1.0.41 installed and the affected sPSVOpLclSrv service present. Risk increases on shared workstations, print-management hosts, or endpoints where non-admin users can write to directories in the service path.
Exploitation context
A public Exploit-DB entry exists, so defenders should assume exploit knowledge is available. The provided sources do not show CISA KEV listing or confirmed active exploitation. Exploitation requires local access and depends on service restart or system reboot behavior.
Researcher notes
Evidence comes from CVE data, VulnCheck, and Exploit-DB. No official OKI security advisory or fixed version is included in the provided sources. Avoid overstating active exploitation; only public exploit availability is supported here.
Mitigation direction
Check OKI guidance for updated software or supported remediation.
Upgrade, remove, or disable the affected component if not required.
Correct the unquoted service path using vendor-approved change procedures.
Restrict write permissions on directories in the service path.
Prioritize shared endpoints and print-management systems.
Validation and detection
Inventory systems for OKI sPSV Port Manager 1.0.41.
Confirm whether service sPSVOpLclSrv exists.
Review the service ImagePath for unquoted spaces.
Check write permissions along the service path directories.
Verify remediation by rechecking service path quoting and permissions.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-428: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
2CVSS vectors
3Timeline events
1ADP providers
5Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: total
CVSS vector scores
2 official scores
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.