CorgetGpsDget OS Command Injection
A security researcher has published an exploit for a critical OS command injection flaw in CorgetGpsDget. The vulnerability is in the GPS application and enables remote attackers to execute commands as the root user without authentication.
The exploit code was released by Bytetobreach, on July 5, 2026. The flaw is found in GpsDget version 2_3.2, build 2020-09-01. A CVE has been requested but is still pending.
Let me walk you through what this CorgetGpsDget vulnerability means and what you need to do about it.
What the Vulnerability Does
This is because of an HTTP service running on the device. The server is identified as "PTTServer". This server also has an unauthenticated request handler to receive requests.
Reason for why this vulnerability is a security threat:
- SendEmail is the vulnerable method
- Target Header is passed to system() call without any modification
- No input validation is performed
- Command injection using semi-colon
- Root level permissions to execute commands
- No need for authentication to exploit this vulnerability
The vulnerable system call is given below:
system("echo '<body>'|mail -r
'[email protected]' -s '<subject>' <Target>");Because the "Target" header is inserted directly into this command, an attacker can break out and run their own commands.
How the Exploit Works
The exploit is simple but effective. An HTTP POST request is sent to the vulnerable web server.
Here, the attacker specifies the method as SendEmail and uses the Target header to insert his command.
The following shows an example of such an attack:
x;<cmd>;Here, the semicolon terminates the email command, and the injected command executes next.
For example, an attacker could run:
python3 corget.py 192.168.1.100:7777 'id > /data/rce'The server responds with an HTTP 200 OK. The injected command writes output to /data/rce on the target system.
The output can now be retrieved using the following:
curl 192.168.1.100:13001/rceThe output proves that root privileges have been obtained:
uid=0(root) gid=0(root) 组=0(root)Who is Vulnerable to this Exploit?
The vulnerability known as CorgetGpsDget exploits a particular version of the software as follows:
- The vulnerable version is GpsDget 2_3.2
- The build date is September 1, 2020
- The product line is Gps2.0
- The service runs as root by default
Any organization using this version of the software is at risk. The service is typically exposed on port 7777. This exploit does not need any credentials at all.
Why this vulnerability is so serious?
The CorgetGpsDget vulnerability is dangerous for the following reasons:
- The attacker doesn’t have to authenticate himself
- The commands are executed under root permission
- It is possible to use the exploit remotely
- The exploit code is publicly available
- It is possible to manipulate GPS tracking data
- The device can become an access point to the network
What You Should Do Right Now
If you are running CorgetGpsDget, you need to act quickly:
Immediate Actions:
- Identify all systems running GpsDget 2_3.2
- Check if the PTTServer service is exposed to the internet
- Restrict network access to the service immediately
- Block external access to port 7777 if not required
- Consider isolating GPS tracking systems from the rest of the network
Log Monitoring:
- Look for POST requests with Method: SendEmail
- Check for Target headers containing semicolons (;)
- Monitor for unusual outbound connections
- Check for unexpected files in the /data/ directory
- Review system logs for command execution events
Workarounds:
No vendor patch is currently available. If you cannot update the software, consider these temporary measures:
- Use a firewall to restrict access to the PTTServer port
- Implement an intrusion detection system to flag exploit attempts
- Consider deploying a WAF with rules to block the SendEmail method
- Monitor the /data/ directory for unexpected files
About the Vulnerability Discovery
The researcher who found this vulnerability used reverse engineering to locate the flaw. The binary was analyzed using Ghidra on a Debian system.The vulnerable code was detected in file http/HttpHandler.cpp in function CHttpHandler::SendEmail.
Proof of concept exploit for the vulnerability is available. The code is written in Python and includes a socket connection only. No additional libraries are needed.
Conclusion
CorgetGpsDget OS command injection vulnerability poses a very serious threat. It is a vulnerability that enables an attacker to execute commands as the root user.
Points to Remember:
- It affects GpsDget 2_3.2 (September 2020 build)
- PTTServer HTTP service is the affected service
- SendEmail method fails to validate the inputs
- Commands are executed as root
- An exploit is public
- There is no vendor patch yet
If you are using this software, restrict network access immediately. Monitor your logs for signs of exploitation. Isolate GPS tracking systems where possible.
This vulnerability is an example of why legacy software often has serious vulnerabilities in it. Patching is important.
FAQ Section
What is the CorgetGpsDget OS command injection vulnerability?
This is a vulnerability where attackers can execute root commands on a CorgetGpsDget system without being authenticated. This vulnerability is in the SendEmail method of the PTTServer HTTP service.
Which versions are affected?
GpsDget 2_3.2, build 2020-09-01 is affected. A CVE has been requested but is not yet assigned.
How does the exploit work?
The exploit sends a crafted HTTP request with the Method: SendEmail header. The Target header contains injected commands that run as root.
What should I do if I use this software?
Restrict network access to the PTTServer service immediately. Isolate GPS tracking systems from the internet. Monitor logs for exploitation attempts.
Is there a patch available?
No patch has been released by the vendor yet. Check the vendor's website for updates.
