From 4b494770577cc61c3c1a4b57ced2fc98d87957dc Mon Sep 17 00:00:00 2001 From: Ilias Apalodimas Date: Fri, 6 May 2022 15:36:01 +0300 Subject: [PATCH] test/py: Add more test cases for rejecting an EFI image The previous patch adds support for rejecting images when the sha384/512 of an x.509 certificate is present in dbx. Update the sandbox selftests Signed-off-by: Ilias Apalodimas --- test/py/tests/test_efi_secboot/conftest.py | 6 +++ test/py/tests/test_efi_secboot/test_signed.py | 51 +++++++++++++++++++ 2 files changed, 57 insertions(+) diff --git a/test/py/tests/test_efi_secboot/conftest.py b/test/py/tests/test_efi_secboot/conftest.py index 69a498ca00..8a53dabe54 100644 --- a/test/py/tests/test_efi_secboot/conftest.py +++ b/test/py/tests/test_efi_secboot/conftest.py @@ -80,6 +80,12 @@ def efi_boot_env(request, u_boot_config): check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db.crt dbx_hash.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash.crl dbx_hash.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) + check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 384 db.crt dbx_hash384.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash384.crl dbx_hash384.auth' + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), + shell=True) + check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 512 db.crt dbx_hash512.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash512.crl dbx_hash512.auth' + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), + shell=True) # dbx_hash1 (digest of TEST_db1 certificate) check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db1.crt dbx_hash1.crl; %ssign-efi-sig-list -t "2020-04-06" -c KEK.crt -k KEK.key dbx dbx_hash1.crl dbx_hash1.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), diff --git a/test/py/tests/test_efi_secboot/test_signed.py b/test/py/tests/test_efi_secboot/test_signed.py index cc9396a11d..30b3fa4e70 100644 --- a/test/py/tests/test_efi_secboot/test_signed.py +++ b/test/py/tests/test_efi_secboot/test_signed.py @@ -283,3 +283,54 @@ class TestEfiSignedImage(object): 'efidebug test bootmgr']) assert '\'HELLO\' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) + + def test_efi_signed_image_auth7(self, u_boot_console, efi_boot_env): + """ + Test Case 7 - Reject images based on the sha384/512 of their x509 cert + """ + # sha384 of an x509 cert in dbx + u_boot_console.restart_uboot() + disk_img = efi_boot_env + with u_boot_console.log.section('Test Case 7a'): + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % disk_img, + 'fatload host 0:1 4000000 db.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db', + 'fatload host 0:1 4000000 KEK.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', + 'fatload host 0:1 4000000 PK.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK', + 'fatload host 0:1 4000000 db1.auth', + 'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize db', + 'fatload host 0:1 4000000 dbx_hash384.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx']) + assert 'Failed to set EFI variable' not in ''.join(output) + output = u_boot_console.run_command_list([ + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed_2sigs -s ""', + 'efidebug boot next 1', + 'efidebug test bootmgr']) + assert '\'HELLO\' failed' in ''.join(output) + assert 'efi_start_image() returned: 26' in ''.join(output) + + # sha512 of an x509 cert in dbx + u_boot_console.restart_uboot() + with u_boot_console.log.section('Test Case 7b'): + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % disk_img, + 'fatload host 0:1 4000000 db.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize db', + 'fatload host 0:1 4000000 KEK.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK', + 'fatload host 0:1 4000000 PK.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK', + 'fatload host 0:1 4000000 db1.auth', + 'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize db', + 'fatload host 0:1 4000000 dbx_hash512.auth', + 'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx']) + assert 'Failed to set EFI variable' not in ''.join(output) + output = u_boot_console.run_command_list([ + 'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed_2sigs -s ""', + 'efidebug boot next 1', + 'efidebug test bootmgr']) + assert '\'HELLO\' failed' in ''.join(output) + assert 'efi_start_image() returned: 26' in ''.join(output) -- 2.39.5