CVE-2022-0361 Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.

CVE-2022-0361 Heap-based Buffer Overflow in GitHub repository vim/vim prior to 8.2.

In this type of attack, an attacker tricks a user into running a specially crafted script on the web server. The specially crafted script can then cause buffer overflow on the web server and execute arbitrary code on the server. In GitHub, we have a variety of ways to login to the application from our browser. We can login via GitHub.com, GitHub Enterprise, GitHub Pages, GitHub Mobile, GitHub Enterprise, GitHub Learning, GitHub Gists, GitHub Enterprise, GitHub Open Source, GitHub Enterprise, GitHub Pro, GitHub Enterprise, GitHub on the App Store, or via SSH. Once we login to GitHub, we can then create a new repository or fork an existing one. The next step depends on the type of application. For applications hosted on GitHub.com, we can edit the repository pages to add a “Get started” link that directs users to the documentation. For GitHub Enterprise, GitHub Pages, GitHub Mobile, GitHub Enterprise, GitHub Learning, GitHub Gists, GitHub Enterprise, GitHub Open Source, GitHub Enterprise, GitHub Pro, GitHub Enterprise, GitHub on the App Store, or GitHub SSH, we can add instructions in the README on how to access the repository. Next, we need to find a vulnerable script in the repository. In GitHub, all the repositories are public and can be viewed by anyone. GitHub provides a search feature that enables us to search the repository for any specific phrase or keyword. The next step is to craft a malicious URL to add to the search query. The URL

Access restriction bypass

In order to create a malicious URL, we must first find a script that performs the desired action. In GitHub, we can use the search function for this purpose. Once we’ve found the vulnerable script, we need to craft a malicious URL that will trigger the exploit. The URL will have all of our information as it passes through GitHub’s search query and it will trigger the vulnerability in the vulnerable script. The final step is to click on the link provided in the search query and cause an issue in GitHub’s application.

References

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