CVE-2020-37100
Published: 03 February 2026
Summary
CVE-2020-37100 is a high-severity Unquoted Search Path or Element (CWE-428) vulnerability in Flexense Syncbreeze. Its CVSS base score is 8.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception by Unquoted Path (T1574.009); ranked at the 8.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 CM-6 (Configuration Settings) and SI-2 (Flaw Remediation).
Deeper analysis
Sync Breeze Enterprise 12.4.18 is affected by CVE-2020-37100, an unquoted service path vulnerability classified under CWE-428. This flaw occurs in the service binary path, enabling local attackers to hijack the service startup process. 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.
Local attackers with low privileges can exploit this vulnerability by placing malicious executables in specific file system locations that precede the legitimate service binary in the system's PATH search order. Successful exploitation allows execution of arbitrary code with elevated system privileges, such as SYSTEM level, without requiring user interaction or high complexity.
Advisories and references, including those from VulnCheck at https://www.vulncheck.com/advisories/sync-breeze-enterprise-unquoted-service-path, the vendor site at http://www.syncbreeze.com, and a public exploit at https://www.exploit-db.com/exploits/48045, provide further details on the issue. Practitioners should consult these sources for mitigation guidance, such as updating to a patched version or applying service configuration fixes to quote the binary path.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2020-30976
Vulnerability details
Sync Breeze Enterprise 12.4.18 contains an unquoted service path vulnerability that allows local attackers to execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted binary path by placing malicious executables in specific file system locations to hijack…
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the service startup process.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unquoted service path (CWE-428) directly enables path interception by placing a malicious executable earlier in the search order, leading to arbitrary code execution at service startup with SYSTEM privileges.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires timely identification, reporting, and correction of flaws like unquoted service paths to prevent local privilege escalation.
Mandates establishment and enforcement of secure configuration settings, including quoting service binary paths to block hijacking via unquoted paths.
Enforces least privilege to restrict low-privileged local users from writing malicious executables to file system locations exploited in the unquoted service path vulnerability.