CVE-2022-44006 An issue was found in BACKCLICK 5.9.63, which has a validating and sanitizing issue that allows uploading files to unintended locations.

CVE-2022-44006 An issue was found in BACKCLICK 5.9.63, which has a validating and sanitizing issue that allows uploading files to unintended locations.

For example, a user uploads a PHP code file named “ calc.php” and another user with write access to that directory could overwrite that file with an executable PHP code named “ calc.php” and upload that new file. This could allow arbitrary PHP code execution.

Another possible scenario is that a user uploads a file named “ calc.php” which is then edited to change one character to another. The resulting file is then uploaded and that results in remote code execution.

In both cases, the code would run at the same location as the PHP code file, but with a different name. Therefore, a remote attacker could execute arbitrary code on the affected system via a specially crafted email.

BackClick recommends users review their permissions to verify that only relevant users have access to the target directory and that only files that are relevant to that user are uploaded.

Solution

BackClick recommends that all users review their permissions in order to verify that only relevant users have access to the target directory and that only files that are relevant to that user are uploaded.

How to Protect an Organization From Click-Jacking Attacks

Click-jacking attacks are a type of social engineering that can compromise an organization’s network infrastructure. In order to prevent these attacks, organizations should limit access to sensitive directories, such as public_html and web_docs, to only those who need it. Additionally, they should use ACLs or permissions instead of relying on users to follow the proper execution path for their scripts.

The following steps can be taken in order to protect an organization from click-jacking attacks:

1) Implement a companywide security policy which clearly defines what is allowed and not allowed on the company’s network infrastructure
2) Limit access to sensitive directories that may contain executable code, like public_html and web_docs, only to those users with legitimate business needs
3) Use ACLs or permissions instead of relying on users to follow the proper execution path for their scripts

CVE-2022-44007

BackClick recommends users review their permissions to verify that only relevant users have access to the target directory and that only files that are relevant to that user are uploaded.

BackClick recommends users review their permissions to verify that only relevant users have access to the target directory and that only files that are relevant to that user are uploaded.

Vulnerability details:

A remote code execution vulnerability exists in all PHP versions prior to version 5.6.23, where user-uploaded PHP files are not checked for malicious content.
BackClick recommends users review their permissions to verify that only relevant users have access to the target directory and that only files that are relevant to that user are uploaded.

References

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