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aszlig 43e28a1b75
Fix symlink leak in restricted eval mode 
In EvalState::checkSourcePath, the path is checked against the list of
allowed paths first and later it's checked again *after* resolving
symlinks.

The resolving of the symlinks is done via canonPath, which also strips
out "../" and "./". However after the canonicalisation the error message
pointing out that the path is not allowed prints the symlink target in
the error message.

Even if we'd suppress the message, symlink targets could still be leaked
if the symlink target doesn't exist (in this case the error is thrown in
canonPath).

So instead, we now do canonPath() without symlink resolving first before
even checking against the list of allowed paths and then later do the
symlink resolving and checking the allowed paths again.

The first call to canonPath() should get rid of all the "../" and "./",
so in theory the only way to leak a symlink if the attacker is able to
put a symlink in one of the paths allowed by restricted evaluation mode.

For the latter I don't think this is part of the threat model, because
if the attacker can write to that path, the attack vector is even
larger.

Signed-off-by: aszlig <aszlig@nix.build>
2018-08-03 06:46:43 +02:00
..
lang lib.concatMap and lib.mapAttrs to be builtins 2018-07-05 02:54:09 +00:00
plugins Modularize config settings 2018-05-30 13:28:01 +02:00
add.sh
binary-cache.sh Don't require --fallback to recover from disappeared binary cache NARs 2018-06-05 16:04:41 +02:00
brotli.sh use libbrotli directly when available 2017-12-30 20:26:33 -06:00
build-dry.sh build-dry: disable failing portion of test until issue is fixed 2018-02-07 15:20:54 -06:00
build-hook.nix build-remote: Add a basic test 2017-05-02 15:46:10 +02:00
build-remote.sh Fix tests using user namespaces on kernels that don't have it 2018-01-13 19:08:41 +02:00
case-hack.sh
case.nar
check-refs.nix
check-refs.sh
check-reqs.nix
check-reqs.sh Print out all bad references/requisites at once 2016-04-16 19:58:26 -04:00
check.nix Fix test 2018-01-22 17:04:08 +01:00
check.sh Don't access tarballs.nixos.org in a test 2018-01-22 16:56:28 +01:00
common.sh.in tests: more robust check for user namespaces availability (canUseSandbox) 2018-06-06 00:41:01 +03:00
config.nix Pass lists/attrsets to bash as (associative) arrays 2017-10-25 13:01:50 +02:00
dependencies.builder0.sh
dependencies.builder1.sh
dependencies.builder2.sh
dependencies.nix
dependencies.sh
dump-db.sh Remove $NIX_DB_DIR 2016-08-10 18:05:35 +02:00
export-graph.nix
export-graph.sh
export.sh Fix #1762 2018-02-13 14:26:19 +00:00
fetchGit.sh Add pure evaluation mode 2018-01-16 19:23:18 +01:00
fetchMercurial.sh Add pure evaluation mode 2018-01-16 19:23:18 +01:00
fetchurl.sh Test: Replace --option with the corresponding flag 2017-11-20 17:50:49 +01:00
filter-source.nix Use shorter daemon socket path in tests 2016-03-24 14:45:55 +01:00
filter-source.sh
fixed.builder1.sh
fixed.builder2.sh
fixed.nix
fixed.sh Remove nix-build --hash 2018-02-03 10:08:05 +01:00
gc-concurrent.builder.sh
gc-concurrent.nix
gc-concurrent.sh
gc-concurrent2.builder.sh
gc-runtime.nix
gc-runtime.sh Fix gc-runtime test 2016-09-12 13:40:07 +02:00
gc.sh
hash-check.nix
hash.sh Support base-64 hashes 2017-07-04 15:07:41 +02:00
import-derivation.nix
import-derivation.sh
init.sh Allow includes from nix.conf 2018-02-13 08:16:32 -05:00
install-darwin.sh Rename PINCH_ME_IM_SILLY to ALLOW_PREEXISTING_INSTALLATION 2017-07-14 12:11:33 -04:00
lang.sh
linux-sandbox.sh Fix tests using user namespaces on kernels that don't have it 2018-01-13 19:08:41 +02:00
local.mk tests: test nix search behavior 2018-02-25 16:40:05 -06:00
logging.sh Test: Replace --option with the corresponding flag 2017-11-20 17:50:49 +01:00
misc.sh Improve filtering of ANSI escape sequences in build logs 2018-02-07 15:23:57 +01:00
multiple-outputs.nix
multiple-outputs.sh nix-shell/nix-build: Support .drv files again 2017-11-24 18:08:35 +01:00
nar-access.nix Rename tests/nar-index -> tests/nar-access 2017-11-14 13:27:40 +01:00
nar-access.sh Fix #1762 2018-02-13 14:26:19 +00:00
nix-build.sh nix-shell/nix-build: Support .drv files again 2017-11-24 18:08:35 +01:00
nix-channel.sh Fix tests 2017-10-02 23:45:27 -04:00
nix-copy-closure.nix dsa -> ed25519 2018-02-08 13:46:23 +01:00
nix-profile.sh Fix nix-profile test in a chroot 2016-05-31 13:07:24 +02:00
nix-shell.sh Hardcodes nix-shell instead of /usr/bin/env nix-shell... 2018-04-09 09:36:54 -04:00
optimise-store.sh Test: Replace --option with the corresponding flag 2017-11-20 17:50:49 +01:00
parallel.builder.sh
parallel.nix
parallel.sh
pass-as-file.sh
placeholders.sh Add a mechanism for derivation attributes to reference the derivation's outputs 2016-08-17 17:19:32 +02:00
plugins.sh Allow plugins to define new settings. 2018-02-13 14:43:32 -05:00
pure-eval.nix Add pure evaluation mode 2018-01-16 19:23:18 +01:00
pure-eval.sh Add pure evaluation mode 2018-01-16 19:23:18 +01:00
referrers.sh Remove $NIX_DB_DIR 2016-08-10 18:05:35 +02:00
remote-builds.nix dsa -> ed25519 2018-02-08 13:46:23 +01:00
remote-store.sh Remove $NIX_DB_DIR 2016-08-10 18:05:35 +02:00
repair.sh Test: Replace --option with the corresponding flag 2017-11-20 17:50:49 +01:00
restricted.nix Add pure evaluation mode 2018-01-16 19:23:18 +01:00
restricted.sh Fix symlink leak in restricted eval mode 2018-08-03 06:46:43 +02:00
run.nix Add tests for "nix run" 2017-11-20 18:36:36 +01:00
run.sh Fix tests using user namespaces on kernels that don't have it 2018-01-13 19:08:41 +02:00
search.nix tests: test nix search behavior 2018-02-25 16:40:05 -06:00
search.sh tests/search.sh: minor fix to unbreak tests after search ux merge 2018-07-03 15:37:06 -05:00
secure-drv-outputs.nix
secure-drv-outputs.sh Remove manifest support 2016-04-11 16:20:15 +02:00
setuid.nix release.nix: Use fetchTarball and fetchGit 2017-12-22 11:35:32 +01:00
shell.nix Adds nix-shell test for special-cased ruby interpreter. 2018-04-08 00:45:28 -04:00
shell.shebang.rb Hardcodes nix-shell instead of /usr/bin/env nix-shell... 2018-04-09 09:36:54 -04:00
shell.shebang.sh Rename "use-substitutes" to "substitute" 2018-01-04 16:58:39 +01:00
signing.sh Fix test 2017-12-07 01:07:07 +01:00
simple.builder.sh
simple.nix
simple.sh Handle $TMPDIR ending with a slash 2016-10-19 15:19:38 +02:00
structured-attrs.nix exportReferencesGraph: Allow exporting a list of store paths 2017-10-25 15:18:49 +02:00
structured-attrs.sh Pass lists/attrsets to bash as (associative) arrays 2017-10-25 13:01:50 +02:00
tarball.sh Fix test failure 2016-09-08 18:22:28 +02:00
timeout.nix Replace Unicode quotes in user-facing strings by ASCII 2017-07-30 12:32:45 +01:00
timeout.sh Test: Replace --option with the corresponding flag 2017-11-20 17:50:49 +01:00
user-envs.builder.sh
user-envs.nix
user-envs.sh nix-env: Fix parsing of --system 2018-02-08 15:25:03 +01:00