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Remove world-writability from per-user directories

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'nix-daemon' now creates subdirectories for users when they first
connect.

Fixes #509 (CVE-2019-17365).
Should also fix #3127.
This commit is contained in:
Eelco Dolstra 2019-10-09 18:01:21 +02:00
parent 4331eeb13d
commit 5a303093dc
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GPG key ID: 8170B4726D7198DE
11 changed files with 41 additions and 43 deletions
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9
scripts/install-multi-user.sh
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@ -437,16 +437,15 @@ create_build_users() {
}
create_directories() {
# FIXME: remove all of this because it duplicates LocalStore::LocalStore().
_sudo "to make the basic directory structure of Nix (part 1)" \
mkdir -pv -m 0755 /nix /nix/var /nix/var/log /nix/var/log/nix /nix/var/log/nix/drvs /nix/var/nix{,/db,/gcroots,/profiles,/temproots,/userpool}
mkdir -pv -m 0755 /nix /nix/var /nix/var/log /nix/var/log/nix /nix/var/log/nix/drvs /nix/var/nix{,/db,/gcroots,/profiles,/temproots,/userpool} /nix/var/nix/{gcroots,profiles}/per-user
_sudo "to make the basic directory structure of Nix (part 2)" \
mkdir -pv -m 1777 /nix/var/nix/{gcroots,profiles}/per-user
_sudo "to make the basic directory structure of Nix (part 3)" \
mkdir -pv -m 1775 /nix/store
_sudo "to make the basic directory structure of Nix (part 4)" \
_sudo "to make the basic directory structure of Nix (part 3)" \
chgrp "$NIX_BUILD_GROUP_NAME" /nix/store
_sudo "to set up the root user's profile (part 1)" \