Selfhosted

60482 readers

641 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Detailed Rules Post

Be civil.
No spam.
Posts are to be related to self-hosting.
Don't duplicate the full text of your blog or readme if you're providing a link.
Submission headline should match the article title.
No trolling.
Promotion posts require active participation, with an account that is at least 30 days old. F/LOSS without a paywall has exceptions, with requirements. See the rules link for details.
AI-related discussions and AI-involved promotional posts have additional requirements for tagging, as noted in Rule 7 and the AI & Promotional Post Expanded Rules post.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago

MODERATORS

curbstickle@anarchist.nexus

curbstickle_lw@lemmy.world

How do you protect a remote backup from a compromised account? (lemmy.zip)

submitted 2 weeks ago by eyesaremosaics@lemmy.zip to c/selfhosted@lemmy.world

41 comments fedilink hide all child comments

Let's say you have access to a remote machine and use it to copy backups occasionally, eg with rsync. Your local machine has credentials stored that allow write access on the remote machine, however if the local account was compromised that could also allow access to the remote machine and the data stored there.

How can you grant access to an account to write remotely, but also protect the data from this account? One possibility could be to change the permissions on the data after it is copied to prevent deletion/interference, although I'm just making this up. Is there a standard practise for this?

you are viewing a single comment's thread
view the rest of the comments

[–] corsicanguppy@lemmy.ca 0 points 2 weeks ago (2 children)

Are you connecting to the victim to push a backup into storage? If so, there's SO much you should improve on that.

[–] motruck@lemmy.zip 3 points 2 weeks ago

Go on.

[–] glibg10b@lemmy.zip 1 points 2 weeks ago (1 children)

What are the vulnerabilities that you're afraid of? Can you answer this purely from the info OP gave, i.e. without making assumptions about what the server authorizes the phone to do? OP's post does not indicate that they're violating the principle of least privilege in any way.

[–] corsicanguppy@lemmy.ca 1 points 2 weeks ago* (last edited 2 weeks ago)

OP’s post does not indicate that they’re violating the principle of least privilege in any way.

If I wasn't sure whether that was a risk, I would have asked whether that's what was going on. Oh, wait: I did, right? I used a question mark and everything.