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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Non-root user that (suddenly) has elevated privileges in a specific command (only). [Have I been hacked?] (lemmy.world)

submitted 9 months ago by [email protected] to c/[email protected]

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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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[–] [email protected] 7 points 9 months ago (9 children)

Can you be more specific about what you mean by this: "gives (the file) elevated privileges"?

[–] [email protected] 1 points 9 months ago* (last edited 9 months ago) (8 children)

i.e file is created (as non-root), trying to remove the file (once again, as non-root) gives me a "rm: cannot remove 'dir/file.name': Permission denied" error message.

[–] [email protected] 5 points 9 months ago

What are the permissions on the directory? What is command are you running to edit the file? What command are you running to delete it? (Have you got selinux turned on? What filesystem is this directory on?)

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