Overview
The recently discovered CVE-2025-50753 vulnerability presents a significant security risk to all users of Mitrastar GPT-2741GNAC-N2 devices. These devices are equipped with a restricted shell access through ssh that is unfortunately not as restricted as it should be. This vulnerability is particularly dangerous because it allows unauthorized users to gain root shell access, potentially leading to system compromise or data leakage. It’s critical to understand this vulnerability, its potential impacts, and the necessary steps to mitigate it.
Vulnerability Summary
CVE ID: CVE-2025-50753
Severity: High (8.4)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise, potential data leakage
Affected Products
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Product | Affected Versions
Mitrastar GPT-2741GNAC-N2 | All versions
How the Exploit Works
The CVE-2025-50753 exploit involves the misuse of the “deviceinfo show file” command in the restricted shell provided through ssh on Mitrastar GPT-2741GNAC-N2 devices. Normally, this command is used to display files and directories. However, by providing ” /bin/sh” (including the quotes) as the argument to this command, an attacker can escape the restricted shell and gain access to a root shell.
Conceptual Example Code
In a typical ssh session, the exploit would look something like this:
ssh user@target
password:
<strong></strong>
$ deviceinfo show file " /bin/sh"
# root shell access grantedIn this example, `user@target` is the ssh login, and `
` represents the user password. The exploit itself is executed with the `deviceinfo show file ” /bin/sh”` line.
With this level of access, an attacker could perform a variety of malicious actions, including but not limited to, altering system files, installing malicious software, or stealing sensitive data. This makes the CVE-2025-50753 vulnerability a high-risk issue that must be addressed promptly.
Mitigation
To protect your systems from this vulnerability, apply the vendor patch as soon as it becomes available. In the meantime, you may use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. Regularly monitor your systems for any unusual activity to detect potential exploits at the earliest.
