Title. Long,short story: creating or editing files with nano as my non-root user gives (the file) elevated privileges, like I have ran it w/ sudo or as root. And the (only) “security hole” that I can think of is a nextdns docker container running as root. That aside, its very “overkill” security-wise (cap_drop=ALL, non-root image, security_opt=no_new_privileges, etc.).

It’s like someone tried to hack me but gave up halfway. Am I right or wrong to assume this? Just curious.

Thanks in advance.

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0 points

Just did it, and it shows my sudoer username with ownership of the created file. umask returns me 0002.

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7 points

Can you paste the line from ls -l? Sanitize the username/date/time if you need to. Example:

-rw-r–r-- 1 bolapara users 0 Nov 21 17:19 asdf

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-2 points

-rw-rw-r-- 1 $sudoer $sudoer $date $createdfilename.

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2 points

That is not an elevated permission, your user should be able to delete that file, do the same in another directory if it works it might be a permission, or more likely an attribute, problem on the directory itself or something on the path to it.

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