CVE-2020-37030

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

Outline Service version 1.3.3 is affected by CVE-2020-37030, an unquoted service path vulnerability (CWE-428) in the Windows service binary path located at C:\Program Files (x86)\Outline. This flaw allows local users to potentially execute arbitrary code with elevated system privileges, specifically LocalSystem permissions, during service startup. The vulnerability has a CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high impact on confidentiality, integrity, and availability with low complexity for local exploitation.

Local low-privileged users (PR:L) can exploit this vulnerability without user interaction by placing a malicious executable in a directory that precedes the legitimate service binary in the system's PATH search order, due to the unquoted path. Upon service startup, the injected malicious code executes with LocalSystem privileges, enabling full system compromise such as persistence, lateral movement, or data exfiltration on the affected Windows host.

Advisories and references, including those from VulnCheck detailing the unquoted service path issue and an Exploit-DB entry (exploit 48414) providing a proof-of-concept, highlight the vulnerability but do not specify patches in the available information. The official Outline site (getoutline.org) is referenced for further context on the software. Security practitioners should verify service paths, apply least privilege, and monitor for updates from the vendor.