CVE-2020-36930
7.8SysGauge · SysGauge Server
SysGauge Server 7.9.18 is vulnerable to an unquoted service path flaw in its binary path configuration, potentially allowing local attackers to execute arbitrary code and escalate privileges.
Executive summary
A local privilege escalation vulnerability in SysGauge Server 7.9.18 allows attackers to execute arbitrary code by exploiting an unquoted service path.
Vulnerability
The application is susceptible to an unquoted service path vulnerability (CWE-428) located in the binary path configuration for the SysGauge Server service. A local attacker can leverage this misconfiguration to inject a malicious executable into the path, which the system will execute with elevated privileges when the service starts.
Business impact
The ability for a local user to escalate privileges to the level of the service account, which typically runs as SYSTEM, poses a critical risk to the confidentiality, integrity, and availability of the host. While the CVSS score of 7.8 reflects a high severity, the potential for full system compromise means that successful exploitation could allow an attacker to install persistent backdoors, steal sensitive credentials, or move laterally across the network.
Remediation
Immediate Action: Update to the latest version of SysGauge Server provided by the vendor, or manually modify the Windows registry to wrap the service binary path in quotes.
Proactive Monitoring: Review system logs for unexpected service restarts or modifications to service binaries within the C:\Program Files\ directory.
Compensating Controls: Ensure that standard users are restricted from writing to the C:\Program Files\ directory to prevent the placement of malicious binaries in the vulnerable path.
Exploitation status
Public Exploit Available: Yes, a local exploit is documented in the Exploit Database (EDB-ID: 50009).
Analyst recommendation
The vulnerability presents a clear path for privilege escalation on affected Windows systems. Administrators should prioritize patching or applying the manual configuration fix immediately to prevent local attackers from gaining elevated system access. Given the existence of public exploit code, the risk of internal actors or compromised accounts leveraging this flaw is significant.
More SysGauge CVEs
Sources
Originally found and disclosed by Brian Rodriguez, per the CVE Program record.
- ExploitDB-50009 Exploit / PoC
- Vendor Homepage
- VulnCheck Advisory: SysGauge 7.9.18 - ' SysGauge Server' Unquoted Service Path Third-party advisory