diff options
Diffstat (limited to 'test/integration/test-apt-update-nofallback')
| -rwxr-xr-x | test/integration/test-apt-update-nofallback | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/test/integration/test-apt-update-nofallback b/test/integration/test-apt-update-nofallback new file mode 100755 index 000000000..321472c2e --- /dev/null +++ b/test/integration/test-apt-update-nofallback @@ -0,0 +1,234 @@ +#!/bin/sh +# +# ensure we never fallback from a signed to a unsigned repo +# +# hash checks are done in +# +set -e + +simulate_mitm_and_inject_evil_package() +{ + rm -f $APTARCHIVE/dists/unstable/InRelease + rm -f $APTARCHIVE/dists/unstable/Release.gpg + inject_evil_package +} + +inject_evil_package() +{ + cat > $APTARCHIVE/dists/unstable/main/binary-i386/Packages <<EOF +Package: evil +Installed-Size: 29 +Maintainer: Joe Sixpack <joe@example.org> +Architecture: all +Version: 1.0 +Filename: pool/evil_1.0_all.deb +Size: 1270 +Description: an autogenerated evil package +EOF + # avoid ims hit + touch -d '+1hour' aptarchive/dists/unstable/main/binary-i386/Packages +} + +assert_update_is_refused_and_last_good_state_used() +{ + testequal "E: The repository 'file: unstable Release.gpg' is no longer signed." aptget update -qq + + assert_repo_is_intact +} + +assert_repo_is_intact() +{ + testequal "foo/unstable 2.0 all" apt list -q + testsuccess "" aptget install -y -s foo + testfailure "" aptget install -y evil + + LISTDIR=rootdir/var/lib/apt/lists + if ! ( ls $LISTDIR/*InRelease >/dev/null 2>&1 || + ls $LISTDIR/*Release.gpg >/dev/null 2>&1 ); then + echo "Can not find InRelease/Release.gpg in $(ls $LISTDIR)" + msgfail + fi +} + +setupaptarchive_with_lists_clean() +{ + setupaptarchive --no-update + rm -f rootdir/var/lib/apt/lists/_* + #rm -rf rootdir/var/lib/apt/lists +} + +test_from_inrelease_to_unsigned() +{ + # setup archive with InRelease file + setupaptarchive_with_lists_clean + testsuccess aptget update + + simulate_mitm_and_inject_evil_package + assert_update_is_refused_and_last_good_state_used +} + +test_from_release_gpg_to_unsigned() +{ + # setup archive with Release/Release.gpg (but no InRelease) + setupaptarchive_with_lists_clean + rm $APTARCHIVE/dists/unstable/InRelease + testsuccess aptget update + + simulate_mitm_and_inject_evil_package + assert_update_is_refused_and_last_good_state_used +} + +test_from_inrelease_to_unsigned_with_override() +{ + # setup archive with InRelease file + setupaptarchive_with_lists_clean + testsuccess aptget update + + # simulate moving to a unsigned but otherwise valid repo + simulate_mitm_and_inject_evil_package + generatereleasefiles + + # and ensure we can update to it (with enough force) + testsuccess aptget update --allow-insecure-repositories \ + -o Acquire::AllowDowngradeToInsecureRepositories=1 + # but that the individual packages are still considered untrusted + testequal "WARNING: The following packages cannot be authenticated! + evil +E: There are problems and -y was used without --force-yes" aptget install -qq -y evil +} + +test_cve_2012_0214() +{ + # see https://bugs.launchpad.net/ubuntu/+source/apt/+bug/947108 + # + # it was possible to MITM the download so that InRelease/Release.gpg + # are not delivered (404) and a altered Release file was send + # + # apt left the old InRelease file in /var/lib/apt/lists and downloaded + # the unauthenticated Release file too giving the false impression that + # Release was authenticated + # + # Note that this is pretty much impossible nowdays because: + # a) InRelease is left as is, not split to InRelease/Release as it was + # in the old days + # b) we refuse to go from signed->unsigned + # + # Still worth having a regression test the simulates the condition + + # setup archive with InRelease + setupaptarchive_with_lists_clean + testsuccess aptget update + + # do what CVE-2012-0214 did + rm $APTARCHIVE/dists/unstable/InRelease + rm $APTARCHIVE/dists/unstable/Release.gpg + inject_evil_package + # build valid Release file + aptftparchive -qq release ./aptarchive > aptarchive/dists/unstable/Release + + assert_update_is_refused_and_last_good_state_used + + # ensure there is no _Release file downloaded + testfailure ls rootdir/var/lib/apt/lists/*_Release +} + +test_subvert_inrelease() +{ + # setup archive with InRelease + setupaptarchive_with_lists_clean + testsuccess aptget update + + # replace InRelease with something else + mv $APTARCHIVE/dists/unstable/Release $APTARCHIVE/dists/unstable/InRelease + + testequal "W: Failed to fetch file:${APTARCHIVE}/dists/unstable/InRelease Does not start with a cleartext signature + +E: Some index files failed to download. They have been ignored, or old ones used instead." aptget update -qq + + # ensure we keep the repo + assert_repo_is_intact +} + +test_inrelease_to_invalid_inrelease() +{ + # setup archive with InRelease + setupaptarchive_with_lists_clean + testsuccess aptget update + + # now remove InRelease and subvert Release do no longer verify + sed -i 's/Codename.*/Codename: evil!'/ $APTARCHIVE/dists/unstable/InRelease + inject_evil_package + + testequal "W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: file: unstable InRelease: The following signatures were invalid: BADSIG 5A90D141DBAC8DAE Joe Sixpack (APT Testcases Dummy) <joe@example.org> + +W: Failed to fetch file:${APTARCHIVE}/dists/unstable/InRelease The following signatures were invalid: BADSIG 5A90D141DBAC8DAE Joe Sixpack (APT Testcases Dummy) <joe@example.org> + +W: Some index files failed to download. They have been ignored, or old ones used instead." aptget update -qq + + # ensure we keep the repo + assert_repo_is_intact + testfailure grep "evil" rootdir/var/lib/apt/lists/*InRelease +} + +test_release_gpg_to_invalid_release_release_gpg() +{ + # setup archive with InRelease + setupaptarchive_with_lists_clean + rm $APTARCHIVE/dists/unstable/InRelease + testsuccess aptget update + + # now subvert Release do no longer verify + echo "Some evil data" >> $APTARCHIVE/dists/unstable/Release + inject_evil_package + + testequal "W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: file: unstable Release.gpg: The following signatures were invalid: BADSIG 5A90D141DBAC8DAE Joe Sixpack (APT Testcases Dummy) <joe@example.org> + +W: Failed to fetch file:${APTARCHIVE}/dists/unstable/Release.gpg + +W: Some index files failed to download. They have been ignored, or old ones used instead." aptget update -qq + + assert_repo_is_intact + testfailure grep "evil" rootdir/var/lib/apt/lists/*Release +} + + +TESTDIR=$(readlink -f $(dirname $0)) +. $TESTDIR/framework + +setupenvironment +configarchitecture "i386" + +# a "normal" package with source and binary +buildsimplenativepackage 'foo' 'all' '2.0' + +# setup the archive and ensure we have a single package that installs fine +setupaptarchive +APTARCHIVE=$(readlink -f ./aptarchive) +assert_repo_is_intact + +# test the various cases where a repo may go from signed->unsigned +msgmsg "test_from_inrelease_to_unsigned" +test_from_inrelease_to_unsigned + +msgmsg "test_from_release_gpg_to_unsigned" +test_from_release_gpg_to_unsigned + +# ensure we do not regress on CVE-2012-0214 +msgmsg "test_cve_2012_0214" +test_cve_2012_0214 + +# ensure InRelase can not be subverted +msgmsg "test_subvert_inrelease" +test_subvert_inrelease + +# ensure we revert to last good state if InRelease does not verify +msgmsg "test_inrelease_to_invalid_inrelease" +test_inrelease_to_invalid_inrelease + +# ensure we revert to last good state if Release/Release.gpg does not verify +msgmsg "test_release_gpg_to_invalid_release_release_gpg" +test_release_gpg_to_invalid_release_release_gpg + +# ensure we can ovveride the downgrade error +msgmsg "test_from_inrelease_to_unsigned" +test_from_inrelease_to_unsigned_with_override |