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|
{ pkgs, ... }:
{
name = "firejail";
meta = with pkgs.lib.maintainers; {
maintainers = [ sgo ];
};
nodes.machine =
{ ... }:
{
imports = [ ./common/user-account.nix ];
programs.firejail = {
enable = true;
wrappedBinaries = {
bash-jailed = "${pkgs.bash}/bin/bash";
bash-jailed2 = {
executable = "${pkgs.bash}/bin/bash";
extraArgs = [ "--private=~/firejail-home" ];
};
};
};
systemd.services.setupFirejailTest = {
wantedBy = [ "multi-user.target" ];
before = [ "multi-user.target" ];
environment = {
HOME = "/home/alice";
};
unitConfig = {
type = "oneshot";
RemainAfterExit = true;
user = "alice";
};
script = ''
cd $HOME
mkdir .password-store && echo s3cret > .password-store/secret
mkdir my-secrets && echo s3cret > my-secrets/secret
echo publ1c > public
mkdir -p .config/firejail
echo 'blacklist ''${HOME}/my-secrets' > .config/firejail/globals.local
'';
};
};
testScript = ''
start_all()
machine.wait_for_unit("multi-user.target")
# Test path acl with wrapper
machine.succeed("sudo -u alice bash-jailed -c 'cat ~/public' | grep -q publ1c")
machine.fail(
"sudo -u alice bash-jailed -c 'cat ~/.password-store/secret' | grep -q s3cret"
)
machine.fail("sudo -u alice bash-jailed -c 'cat ~/my-secrets/secret' | grep -q s3cret")
# Test extraArgs
machine.succeed("sudo -u alice mkdir /home/alice/firejail-home")
machine.succeed("sudo -u alice bash-jailed2 -c 'echo test > /home/alice/foo'")
machine.fail("sudo -u alice cat /home/alice/foo")
machine.succeed("sudo -u alice cat /home/alice/firejail-home/foo | grep test")
# Test path acl with firejail executable
machine.succeed("sudo -u alice firejail -- bash -c 'cat ~/public' | grep -q publ1c")
machine.fail(
"sudo -u alice firejail -- bash -c 'cat ~/.password-store/secret' | grep -q s3cret"
)
machine.fail(
"sudo -u alice firejail -- bash -c 'cat ~/my-secrets/secret' | grep -q s3cret"
)
# Disabling profiles
machine.succeed(
"sudo -u alice bash -c 'firejail --noprofile -- cat ~/.password-store/secret' | grep -q s3cret"
)
# CVE-2020-17367
machine.fail(
"sudo -u alice firejail --private-tmp id --output=/tmp/vuln1 && cat /tmp/vuln1"
)
# CVE-2020-17368
machine.fail(
"sudo -u alice firejail --private-tmp --output=/tmp/foo 'bash -c $(id>/tmp/vuln2;echo id)' && cat /tmp/vuln2"
)
'';
}
|
