CVE-2023-43801

Arduino Create Agent path traversal - arbitrary file deletion vulnerability

Fixed Version

• 1.3.3

References

The issue was reported by Nozomi Networks Labs. Further details on the issue are available at the following URL:

• https://www.nozominetworks.com/blog/security-flaws-affect-a-component-of-the-arduino-create-cloud-ide

The vulnerability affects the endpoint /v2/pkgs/tools/installed and the way it handles plugin names supplied as user input.
A user who has the ability to perform HTTP requests to the localhost interface, or is able to bypass the CORS configuration, can delete arbitrary files or folders belonging to the user that runs the Arduino Create Agent via a crafted HTTP DELETE request.
Further details are available in the references.

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

CVE-2023-43801 has a CVSS score of 6.1 (Medium). The vector is requires local access, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.3.3); upgrading removes the vulnerable code path.

Kodem intelligence

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1. What is CVE-2023-43801? CVE-2023-43801 is a medium-severity path traversal vulnerability in github.com/arduino/arduino-create-agent (go), affecting versions < 1.3.3. It is fixed in 1.3.3. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
2. How severe is CVE-2023-43801? CVE-2023-43801 has a CVSS score of 6.1 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of github.com/arduino/arduino-create-agent are affected by CVE-2023-43801? github.com/arduino/arduino-create-agent (go) versions < 1.3.3 is affected.
4. Is there a fix for CVE-2023-43801? Yes. CVE-2023-43801 is fixed in 1.3.3. Upgrade to this version or later.
5. Is CVE-2023-43801 exploitable, and should I be worried? Whether CVE-2023-43801 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2023-43801 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2023-43801? Upgrade github.com/arduino/arduino-create-agent to 1.3.3 or later.

Other vulnerabilities in github.com/arduino/arduino-create-agent