simulate_mitm_and_inject_evil_package()
{
- rm -f $APTARCHIVE/dists/unstable/InRelease
- rm -f $APTARCHIVE/dists/unstable/Release.gpg
+ redatereleasefiles '+1 hour'
+ rm -f "$APTARCHIVE/dists/unstable/InRelease" "$APTARCHIVE/dists/unstable/Release.gpg"
inject_evil_package
}
inject_evil_package()
{
- cat > $APTARCHIVE/dists/unstable/main/binary-i386/Packages <<EOF
+ cat > "$APTARCHIVE/dists/unstable/main/binary-i386/Packages" <<EOF
Package: evil
Installed-Size: 29
Maintainer: Joe Sixpack <joe@example.org>
EOF
# avoid ims hit
touch -d '+1hour' aptarchive/dists/unstable/main/binary-i386/Packages
+ compressfile 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
+ testfailuremsg "E: The repository 'file:${APTARCHIVE} unstable Release' is no longer signed.
+N: Updating from such a repository can't be done securely, and is therefore disabled by default.
+N: See apt-secure(8) manpage for repository creation and user configuration details." aptget update
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
+ testsuccessequal "dpkg/now 1.16.2+fake all [installed,local]
+foo/unstable 2.0 all" apt list -qq
+ testsuccess aptget install -y -s foo
+ testfailure aptget install -y evil
+ testsuccess aptget source foo --print-uris
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 $LISTDIR)"
- msgfail
- fi
+ testempty find "$LISTDIR" -name 'InRelease' -o -name 'Release.gpg'
}
setupaptarchive_with_lists_clean()
{
setupaptarchive --no-update
- rm -f rootdir/var/lib/apt/lists/_*
- #rm -rf rootdir/var/lib/apt/lists
+ rm -rf rootdir/var/lib/apt/lists
}
test_from_inrelease_to_unsigned()
{
- # setup archive with InRelease file
+ export APT_DONT_SIGN='Release.gpg'
setupaptarchive_with_lists_clean
testsuccess aptget update
+ listcurrentlistsdirectory > lists.before
simulate_mitm_and_inject_evil_package
assert_update_is_refused_and_last_good_state_used
+ testfileequal lists.before "$(listcurrentlistsdirectory)"
}
test_from_release_gpg_to_unsigned()
{
- # setup archive with Release/Release.gpg (but no InRelease)
+ export APT_DONT_SIGN='InRelease'
setupaptarchive_with_lists_clean
- rm $APTARCHIVE/dists/unstable/InRelease
testsuccess aptget update
+ listcurrentlistsdirectory > lists.before
simulate_mitm_and_inject_evil_package
assert_update_is_refused_and_last_good_state_used
+ testfileequal lists.before "$(listcurrentlistsdirectory)"
+}
+
+test_from_inrelease_to_unsigned_with_override()
+{
+ export APT_DONT_SIGN='Release.gpg'
+ # 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 '+2 hours'
+ find "$APTARCHIVE" -name '*Packages*' -exec touch -d '+2 hours' {} \;
+
+ # and ensure we can update to it (with enough force)
+ testfailure apt update
+ testfailure aptget update
+ testfailure aptget update --allow-insecure-repositories
+ testfailure aptget update --no-allow-insecure-repositories
+ sed -i 's#^deb\(-src\)\? #deb\1 [allow-downgrade-to-insecure=yes] #' rootdir/etc/apt/sources.list.d/*
+ testfailure aptget update --no-allow-insecure-repositories
+ testfailure apt update
+ testwarning apt update --allow-insecure-repositories \
+ -o Debug::pkgAcquire::Worker=1 -o Debug::pkgAcquire::Auth=1
+ sed -i 's#^deb\(-src\)\? \[allow-downgrade-to-insecure=yes\] #deb\1 #' rootdir/etc/apt/sources.list.d/*
+ # but that the individual packages are still considered untrusted
+ testfailureequal "WARNING: The following packages cannot be authenticated!
+ evil
+E: There were unauthenticated packages and -y was used without --allow-unauthenticated" aptget install -qq -y evil
+}
+
+test_from_inrelease_to_norelease_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
+ find "$APTARCHIVE" -name '*Release*' -delete
+ find "$APTARCHIVE" -name '*Packages*' -exec touch -d '+2 hours' {} \;
+
+ # and ensure we can update to it (with enough force)
+ testfailure aptget update
+ testfailure aptget update --allow-insecure-repositories
+ testwarning aptget update --allow-insecure-repositories \
+ -o Acquire::AllowDowngradeToInsecureRepositories=1 -o Debug::pkgAcquire::Worker=1 -o Debug::pkgAcquire::Auth=1
+ # but that the individual packages are still considered untrusted
+ testfailureequal "WARNING: The following packages cannot be authenticated!
+ evil
+E: There were unauthenticated packages and -y was used without --allow-unauthenticated" aptget install -qq -y evil
}
test_cve_2012_0214()
# the unauthenticated Release file too giving the false impression that
# Release was authenticated
#
- # Note that this is pretty much impossible nowdays because:
+ # Note that this is pretty much impossible nowadays 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
+ export APT_DONT_SIGN='Release.gpg'
setupaptarchive_with_lists_clean
testsuccess aptget update
+ listcurrentlistsdirectory > lists.before
# do what CVE-2012-0214 did
- rm $APTARCHIVE/dists/unstable/InRelease
- rm $APTARCHIVE/dists/unstable/Release.gpg
+ rm -f "$APTARCHIVE/dists/unstable/InRelease" "$APTARCHIVE/dists/unstable/Release.gpg"
inject_evil_package
# build valid Release file
- aptftparchive -qq release ./aptarchive > aptarchive/dists/unstable/Release
+ aptftparchive -qq release ./aptarchive > aptarchive/dists/unstable/Release
assert_update_is_refused_and_last_good_state_used
+ testfileequal lists.before "$(listcurrentlistsdirectory)"
# ensure there is no _Release file downloaded
testfailure ls rootdir/var/lib/apt/lists/*_Release
test_subvert_inrelease()
{
- # setup archive with InRelease
+ export APT_DONT_SIGN='Release.gpg'
setupaptarchive_with_lists_clean
testsuccess aptget update
+ listcurrentlistsdirectory > lists.before
# replace InRelease with something else
- mv $APTARCHIVE/dists/unstable/Release $APTARCHIVE/dists/unstable/InRelease
+ mv "$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
+ testfailuremsg "E: Failed to fetch file:${APTARCHIVE}/dists/unstable/InRelease Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
+E: Some index files failed to download. They have been ignored, or old ones used instead." aptget update
# ensure we keep the repo
+ testfileequal lists.before "$(listcurrentlistsdirectory)"
assert_repo_is_intact
}
test_inrelease_to_invalid_inrelease()
{
- # setup archive with InRelease
+ export APT_DONT_SIGN='Release.gpg'
setupaptarchive_with_lists_clean
testsuccess aptget update
+ listcurrentlistsdirectory > lists.before
# now remove InRelease and subvert Release do no longer verify
- sed -i 's/Codename.*/Codename: evil!'/ $APTARCHIVE/dists/unstable/InRelease
+ sed -i 's/^Codename:.*/Codename: evil!/' "$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:${APTARCHIVE}/dists/unstable/InRelease
-
+ testwarningequal "W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: file:${APTARCHIVE} unstable InRelease: The following signatures were invalid: BADSIG 5A90D141DBAC8DAE Joe Sixpack (APT Testcases Dummy) <joe@example.org>
+W: Failed to fetch file:${APTARCHIVE}/dists/unstable/InRelease The following signatures were invalid: BADSIG 5A90D141DBAC8DAE Joe Sixpack (APT Testcases Dummy) <joe@example.org>
W: Some index files failed to download. They have been ignored, or old ones used instead." aptget update -qq
# ensure we keep the repo
+ testfailure grep 'evil' rootdir/var/lib/apt/lists/*InRelease
+ testfileequal lists.before "$(listcurrentlistsdirectory)"
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
+ export APT_DONT_SIGN='InRelease'
setupaptarchive_with_lists_clean
- rm $APTARCHIVE/dists/unstable/InRelease
testsuccess aptget update
+ listcurrentlistsdirectory > lists.before
# now subvert Release do no longer verify
- echo "Some evil data" >> $APTARCHIVE/dists/unstable/Release
+ echo "Some evil data" >> "$APTARCHIVE/dists/unstable/Release"
inject_evil_package
- testequal "E: The repository 'file: unstable Release.gpg' is no longer signed." aptget update -qq
+ testwarningequal "W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: file:${APTARCHIVE} unstable Release: The following signatures were invalid: BADSIG 5A90D141DBAC8DAE Joe Sixpack (APT Testcases Dummy) <joe@example.org>
+W: Failed to fetch file:${APTARCHIVE}/dists/unstable/Release.gpg 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
+ testfailure grep 'evil' rootdir/var/lib/apt/lists/*Release
+ testfileequal lists.before "$(listcurrentlistsdirectory)"
assert_repo_is_intact
- testfailure grep "evil" rootdir/var/lib/apt/lists/*Release
}
-TESTDIR=$(readlink -f $(dirname $0))
-. $TESTDIR/framework
+TESTDIR="$(readlink -f "$(dirname "$0")")"
+. "$TESTDIR/framework"
setupenvironment
configarchitecture "i386"
# setup the archive and ensure we have a single package that installs fine
setupaptarchive
-APTARCHIVE=$(readlink -f ./aptarchive)
+APTARCHIVE="$(readlink -f ./aptarchive)"
assert_repo_is_intact
# test the various cases where a repo may go from signed->unsigned
msgmsg "test_cve_2012_0214"
test_cve_2012_0214
-# ensure InRelase can not be subverted
+# ensure InRelease can not be subverted
msgmsg "test_subvert_inrelease"
test_subvert_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 override the downgrade error
+msgmsg "test_from_inrelease_to_unsigned_with_override"
+test_from_inrelease_to_unsigned_with_override
+msgmsg "test_from_inrelease_to_norelease_with_override"
+test_from_inrelease_to_norelease_with_override
projects / apt.git / blobdiff