secd60-account-cloud-exposure.c [plain text]
#include <Security/SecBase.h>
#include <Security/SecItem.h>
#include <CoreFoundation/CFDictionary.h>
#include <Security/SecureObjectSync/SOSAccount.h>
#include <Security/SecureObjectSync/SOSPeerInfoPriv.h>
#include <Security/SecureObjectSync/SOSCloudCircle.h>
#include <Security/SecureObjectSync/SOSInternal.h>
#include <Security/SecureObjectSync/SOSUserKeygen.h>
#include <Security/SecureObjectSync/SOSTransport.h>
#include <stdlib.h>
#include <unistd.h>
#include "secd_regressions.h"
#include "SOSTestDataSource.h"
#include "SOSRegressionUtilities.h"
#include <utilities/SecCFWrappers.h>
#include <Security/SecKeyPriv.h>
#include <securityd/SOSCloudCircleServer.h>
#include "SOSAccountTesting.h"
#include "SecdTestKeychainUtilities.h"
static int kTestTestCount = 58;
static bool SOSAccountResetCircleToNastyOffering(SOSAccountRef account, SecKeyRef userPriv, SOSPeerInfoRef pi, CFErrorRef *error) {
bool result = false;
SecKeyRef userPub = SecKeyCreatePublicFromPrivate(userPriv);
require(SOSAccountHasCircle(account, error), fail);
require(SOSAccountEnsureFullPeerAvailable(account, error), fail);
(void) SOSAccountResetAllRings(account, error);
SOSAccountModifyCircle(account, error, ^(SOSCircleRef circle) {
bool result = false;
CFErrorRef localError = NULL;
SOSFullPeerInfoRef iCloudfpi = NULL;
require_quiet(SOSCircleResetToEmpty(circle, error), err_out);
require_quiet(SOSAccountAddiCloudIdentity(account, circle, userPriv, error), err_out);
require_quiet(iCloudfpi = SOSCircleCopyiCloudFullPeerInfoRef(circle, error), err_out);
require_quiet(SOSCircleRequestReadmission(circle, userPub, pi, error), err_out);
require_quiet(SOSCircleAcceptRequest(circle, userPriv, iCloudfpi, pi, error), err_out);
account->departure_code = kSOSNeverLeftCircle;
result = true;
account->trusted_circle = SOSCircleCopyCircle(kCFAllocatorDefault, circle, error);
SOSAccountPublishCloudParameters(account, NULL);
account->my_identity = NULL;
err_out:
if (result == false)
secerror("error resetting circle (%@) to offering: %@", circle, localError);
if (localError && error && *error == NULL) {
*error = localError;
localError = NULL;
}
CFReleaseNull(localError);
return result;
});
result = true;
fail:
return result;
}
static bool SOSAccountResetToNastyOffering(SOSAccountRef account, SOSPeerInfoRef pi, CFErrorRef* error) {
SecKeyRef user_key = SOSAccountGetPrivateCredential(account, error);
if (!user_key)
return false;
CFReleaseNull(account->my_identity);
return user_key && SOSAccountResetCircleToNastyOffering(account, user_key, pi, error);
}
static bool performiCloudIdentityAttack(SOSAccountRef attacker, SOSAccountRef defender, SOSAccountRef accomplice, CFMutableDictionaryRef changes) {
CFErrorRef error = NULL;
bool retval = false; CFArrayRef applicants = NULL;
require_action_quiet(SOSAccountResetToNastyOffering(attacker, SOSFullPeerInfoGetPeerInfo(defender->my_identity), &error), testDone, retval = true);
CFReleaseNull(error);
ProcessChangesUntilNoChange(changes, defender, accomplice, attacker, NULL);
require_action_quiet(SOSAccountJoinCirclesAfterRestore_wTxn(attacker, &error), testDone, retval = true);
CFReleaseNull(error);
require_action_quiet(countPeers(attacker) == 2, testDone, retval = true);
require_action_quiet(SOSAccountJoinCircles_wTxn(accomplice, &error), testDone, retval = true);
CFReleaseNull(error);
ProcessChangesUntilNoChange(changes, defender, accomplice, attacker, NULL);
applicants = SOSAccountCopyApplicants(attacker, &error);
CFReleaseNull(error);
if(CFArrayGetCount(applicants) > 0) {
require_action_quiet(SOSAccountAcceptApplicants(attacker, applicants, &error), testDone, retval = true);
}
ProcessChangesUntilNoChange(changes, defender, accomplice, attacker, NULL);
require_action_quiet(countPeers(defender) == 3, testDone, retval = true);
require_action_quiet(countPeers(accomplice) == 3, testDone, retval = true);
require_action_quiet(countPeers(attacker) == 3, testDone, retval = true);
testDone:
CFReleaseNull(applicants);
CFReleaseNull(error);
return retval;
}
static void tests(void)
{
CFErrorRef error = NULL;
CFDataRef cfpassword = CFDataCreate(NULL, (uint8_t *) "FooFooFoo", 10);
CFStringRef cfaccount = CFSTR("test@test.org");
CFMutableDictionaryRef changes = CFDictionaryCreateMutableForCFTypes(kCFAllocatorDefault);
SOSAccountRef alice_account = CreateAccountForLocalChanges( CFSTR("Alice"), CFSTR("TestSource"));
SOSAccountRef bob_account = CreateAccountForLocalChanges(CFSTR("Bob"), CFSTR("TestSource"));
SOSAccountRef carole_account = CreateAccountForLocalChanges(CFSTR("Carole"), CFSTR("TestSource"));
ok(SOSAccountAssertUserCredentialsAndUpdate(bob_account, cfaccount, cfpassword, &error), "Credential setting (%@)", error);
is(ProcessChangesUntilNoChange(changes, alice_account, bob_account, carole_account, NULL), 1, "updates");
ok(SOSAccountAssertUserCredentialsAndUpdate(alice_account, cfaccount, cfpassword, &error), "Credential setting (%@)", error);
CFReleaseNull(error);
ok(SOSAccountAssertUserCredentialsAndUpdate(carole_account, cfaccount, cfpassword, &error), "Credential setting (%@)", error);
CFReleaseNull(error);
ok(SOSAccountResetToOffering_wTxn(alice_account, &error), "Reset to offering (%@)", error);
CFReleaseNull(error);
is(ProcessChangesUntilNoChange(changes, alice_account, bob_account, carole_account, NULL), 2, "updates");
ok(SOSAccountJoinCircles_wTxn(bob_account, &error), "Bob Applies (%@)", error);
CFReleaseNull(error);
is(ProcessChangesUntilNoChange(changes, alice_account, bob_account, carole_account, NULL), 2, "updates");
{
CFArrayRef applicants = SOSAccountCopyApplicants(alice_account, &error);
ok(applicants && CFArrayGetCount(applicants) == 1, "See one applicant %@ (%@)", applicants, error);
ok(SOSAccountAcceptApplicants(alice_account, applicants, &error), "Alice accepts (%@)", error);
CFReleaseNull(error);
CFReleaseNull(applicants);
}
is(ProcessChangesUntilNoChange(changes, alice_account, bob_account, carole_account, NULL), 3, "updates");
accounts_agree("bob&alice pair", bob_account, alice_account);
ok(performiCloudIdentityAttack(carole_account, alice_account, bob_account, changes), "Attack is defeated");
CFReleaseNull(bob_account);
CFReleaseNull(alice_account);
CFReleaseNull(carole_account);
CFReleaseNull(cfpassword);
SOSUnregisterAllTransportMessages();
SOSUnregisterAllTransportCircles();
SOSUnregisterAllTransportKeyParameters();
CFArrayRemoveAllValues(key_transports);
CFArrayRemoveAllValues(circle_transports);
CFArrayRemoveAllValues(message_transports);
}
int secd_60_account_cloud_exposure(int argc, char *const *argv)
{
plan_tests(kTestTestCount);
secd_test_setup_temp_keychain(__FUNCTION__, NULL);
tests();
return 0;
}