CVE-2020-37039 Overview
CVE-2020-37039 is a denial of service vulnerability affecting Frigate 2.02. The vulnerability allows attackers to crash the application by sending oversized input to the command line interface. By generating a payload of 8000 repeated characters and pasting it into the application's command line field, an attacker can trigger an application crash, resulting in a denial of service condition.
Critical Impact
Local attackers can cause application crashes through oversized command line input, disrupting availability of the Frigate 2 file management application.
Affected Products
- Frigate 2.02
Discovery Timeline
- 2026-01-30 - CVE-2020-37039 published to NVD
- 2026-02-03 - Last updated in NVD database
Technical Details for CVE-2020-37039
Vulnerability Analysis
This vulnerability is classified under CWE-770 (Allocation of Resources Without Limits or Throttling). The Frigate 2.02 application fails to properly validate or limit the size of input provided through its command line interface. When an attacker supplies an excessively large input string (approximately 8000 characters), the application cannot handle the oversized data, resulting in a crash.
The attack requires local access to the system and some user interaction to execute. While the vulnerability does not allow for data confidentiality or integrity compromise, it can disrupt the availability of the application for legitimate users.
Root Cause
The root cause of this vulnerability is improper input validation and the absence of boundary checks on user-supplied data in the command line interface. The application allocates resources to process user input without enforcing appropriate size limits, leading to resource exhaustion or buffer-related issues when processing abnormally large input strings.
Attack Vector
The attack vector for CVE-2020-37039 is local, requiring the attacker to have access to the system where Frigate 2.02 is installed. The exploitation process involves:
- Generating a malicious payload consisting of approximately 8000 repeated characters
- Pasting or entering this payload into the application's command line field
- The application attempts to process the oversized input
- The application crashes due to improper handling of the large input
The vulnerability is documented in Exploit-DB #48613, which provides additional technical details about the exploitation method.
Detection Methods for CVE-2020-37039
Indicators of Compromise
- Unexpected crashes or terminations of the Frigate 2 application
- Application error logs showing memory allocation failures or buffer-related errors
- Repeated application restarts in a short time period
Detection Strategies
- Monitor for abnormal application crashes of Frigate 2.02 processes
- Implement endpoint detection rules to identify unusual input patterns to the application
- Review Windows Event Logs for application error events related to Frigate
Monitoring Recommendations
- Configure application crash monitoring for Frigate 2 executables
- Enable detailed logging for the Frigate application if available
- Deploy endpoint monitoring to detect repeated crash and restart cycles
How to Mitigate CVE-2020-37039
Immediate Actions Required
- Restrict local access to systems running Frigate 2.02 to trusted users only
- Consider upgrading to a newer version of Frigate if available
- Implement application whitelisting to control execution of the vulnerable application
- Review user access controls on affected systems
Patch Information
No vendor patch information is currently available for this vulnerability. The VulnCheck Denial of Service Advisory may contain additional remediation guidance. Users should check the Frigate3 Archive for any historical vendor communications.
Workarounds
- Limit access to the Frigate 2.02 application to trusted users only
- Consider using alternative file management software if security is a concern
- Implement endpoint protection solutions that can detect and prevent denial of service attacks
- Monitor and alert on application crashes to detect potential exploitation attempts
# Configuration example: Restrict application access using Windows NTFS permissions
# Run in elevated PowerShell to limit who can execute Frigate
icacls "C:\Program Files\Frigate2\frigate.exe" /inheritance:r
icacls "C:\Program Files\Frigate2\frigate.exe" /grant:r "BUILTIN\Administrators:(RX)"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
