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/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kAccessControl
#include "mongo/platform/basic.h"
#include "mongo/db/commands/user_management_commands.h"
#include <string>
#include <vector>
#include "mongo/base/status.h"
#include "mongo/bson/mutable/algorithm.h"
#include "mongo/config.h"
#include "mongo/db/auth/action_set.h"
#include "mongo/db/auth/action_type.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/resource_pattern.h"
#include "mongo/db/auth/user.h"
#include "mongo/db/auth/user_management_commands_parser.h"
#include "mongo/db/jsobj.h"
#include "mongo/util/log.h"
#include "mongo/util/mongoutils/str.h"
#include "mongo/util/sequence_util.h"
namespace mongo {
namespace auth {
void redactPasswordData(mutablebson::Element parent) {
namespace mmb = mutablebson;
const auto pwdFieldName = "pwd"_sd;
for (mmb::Element pwdElement = mmb::findFirstChildNamed(parent, pwdFieldName); pwdElement.ok();
pwdElement = mmb::findElementNamed(pwdElement.rightSibling(), pwdFieldName)) {
pwdElement.setValueString("xxx").transitional_ignore();
}
}
Status checkAuthorizedToGrantRoles(AuthorizationSession* authzSession,
const std::vector<RoleName>& roles) {
for (size_t i = 0; i < roles.size(); ++i) {
if (!authzSession->isAuthorizedToGrantRole(roles[i])) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to grant role: "
<< roles[i].getFullName());
}
}
return Status::OK();
}
Status checkAuthorizedToGrantPrivileges(AuthorizationSession* authzSession,
const PrivilegeVector& privileges) {
for (PrivilegeVector::const_iterator it = privileges.begin(); it != privileges.end(); ++it) {
Status status = authzSession->checkAuthorizedToGrantPrivilege(*it);
if (!status.isOK()) {
return status;
}
}
return Status::OK();
}
Status checkAuthorizedToRevokeRoles(AuthorizationSession* authzSession,
const std::vector<RoleName>& roles) {
for (size_t i = 0; i < roles.size(); ++i) {
if (!authzSession->isAuthorizedToRevokeRole(roles[i])) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to revoke role: "
<< roles[i].getFullName());
}
}
return Status::OK();
}
Status checkAuthorizedToRevokePrivileges(AuthorizationSession* authzSession,
const PrivilegeVector& privileges) {
for (PrivilegeVector::const_iterator it = privileges.begin(); it != privileges.end(); ++it) {
Status status = authzSession->checkAuthorizedToRevokePrivilege(*it);
if (!status.isOK()) {
return status;
}
}
return Status::OK();
}
Status checkAuthForCreateUserCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
auth::CreateOrUpdateUserArgs args;
Status status = auth::parseCreateOrUpdateUserCommands(cmdObj, "createUser", dbname, &args);
if (!status.isOK()) {
return status;
}
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(args.userName.getDB()), ActionType::createUser)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to create users on db: "
<< args.userName.getDB());
}
return checkAuthorizedToGrantRoles(authzSession, args.roles);
}
Status checkAuthForUpdateUserCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
auth::CreateOrUpdateUserArgs args;
Status status = auth::parseCreateOrUpdateUserCommands(cmdObj, "updateUser", dbname, &args);
if (!status.isOK()) {
return status;
}
if (args.hasHashedPassword) {
if (!authzSession->isAuthorizedToChangeOwnPasswordAsUser(args.userName) &&
!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(args.userName.getDB()),
ActionType::changePassword)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to change password of user: "
<< args.userName.getFullName());
}
}
if (args.hasCustomData) {
if (!authzSession->isAuthorizedToChangeOwnCustomDataAsUser(args.userName) &&
!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(args.userName.getDB()),
ActionType::changeCustomData)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to change customData of user: "
<< args.userName.getFullName());
}
}
if (args.hasRoles) {
// You don't know what roles you might be revoking, so require the ability to
// revoke any role in the system.
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forAnyNormalResource(),
ActionType::revokeRole)) {
return Status(ErrorCodes::Unauthorized,
"In order to use updateUser to set roles array, must be "
"authorized to revoke any role in the system");
}
return checkAuthorizedToGrantRoles(authzSession, args.roles);
}
return Status::OK();
}
Status checkAuthForGrantRolesToUserCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
std::vector<RoleName> roles;
std::string unusedUserNameString;
Status status = auth::parseRolePossessionManipulationCommands(
cmdObj, "grantRolesToUser", dbname, &unusedUserNameString, &roles);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToGrantRoles(authzSession, roles);
}
Status checkAuthForCreateRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
auth::CreateOrUpdateRoleArgs args;
Status status = auth::parseCreateOrUpdateRoleCommands(cmdObj, "createRole", dbname, &args);
if (!status.isOK()) {
return status;
}
if (!authzSession->isAuthorizedToCreateRole(args)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to create roles on db: "
<< args.roleName.getDB());
}
status = checkAuthorizedToGrantRoles(authzSession, args.roles);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToGrantPrivileges(authzSession, args.privileges);
}
Status checkAuthForUpdateRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
auth::CreateOrUpdateRoleArgs args;
Status status = auth::parseCreateOrUpdateRoleCommands(cmdObj, "updateRole", dbname, &args);
if (!status.isOK()) {
return status;
}
// You don't know what roles or privileges you might be revoking, so require the ability
// to revoke any role (or privilege) in the system.
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forAnyNormalResource(),
ActionType::revokeRole)) {
return Status(ErrorCodes::Unauthorized,
"updateRole command required the ability to revoke any role in the "
"system");
}
status = checkAuthorizedToGrantRoles(authzSession, args.roles);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToGrantPrivileges(authzSession, args.privileges);
}
Status checkAuthForGrantRolesToRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
std::vector<RoleName> roles;
std::string unusedUserNameString;
Status status = auth::parseRolePossessionManipulationCommands(
cmdObj, "grantRolesToRole", dbname, &unusedUserNameString, &roles);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToGrantRoles(authzSession, roles);
}
Status checkAuthForGrantPrivilegesToRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
PrivilegeVector privileges;
RoleName unusedRoleName;
Status status = auth::parseAndValidateRolePrivilegeManipulationCommands(
cmdObj, "grantPrivilegesToRole", dbname, &unusedRoleName, &privileges);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToGrantPrivileges(authzSession, privileges);
}
Status checkAuthForDropUserCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
UserName userName;
Status status = auth::parseAndValidateDropUserCommand(cmdObj, dbname, &userName);
if (!status.isOK()) {
return status;
}
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(userName.getDB()), ActionType::dropUser)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to drop users from the " << userName.getDB()
<< " database");
}
return Status::OK();
}
Status checkAuthForDropRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
RoleName roleName;
Status status = auth::parseDropRoleCommand(cmdObj, dbname, &roleName);
if (!status.isOK()) {
return status;
}
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(roleName.getDB()), ActionType::dropRole)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to drop roles from the " << roleName.getDB()
<< " database");
}
return Status::OK();
}
Status checkAuthForDropAllUsersFromDatabaseCommand(Client* client, const std::string& dbname) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forDatabaseName(dbname),
ActionType::dropUser)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to drop users from the " << dbname
<< " database");
}
return Status::OK();
}
Status checkAuthForRevokeRolesFromUserCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
std::vector<RoleName> roles;
std::string unusedUserNameString;
Status status = auth::parseRolePossessionManipulationCommands(
cmdObj, "revokeRolesFromUser", dbname, &unusedUserNameString, &roles);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToRevokeRoles(authzSession, roles);
}
Status checkAuthForRevokeRolesFromRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
std::vector<RoleName> roles;
std::string unusedUserNameString;
Status status = auth::parseRolePossessionManipulationCommands(
cmdObj, "revokeRolesFromRole", dbname, &unusedUserNameString, &roles);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToRevokeRoles(authzSession, roles);
}
Status checkAuthForUsersInfoCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
auth::UsersInfoArgs args;
Status status = auth::parseUsersInfoCommand(cmdObj, dbname, &args);
if (!status.isOK()) {
return status;
}
if (args.allForDB) {
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(dbname), ActionType::viewUser)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to view users from the " << dbname
<< " database");
}
} else {
for (size_t i = 0; i < args.userNames.size(); ++i) {
if (authzSession->lookupUser(args.userNames[i])) {
continue; // Can always view users you are logged in as
}
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(args.userNames[i].getDB()),
ActionType::viewUser)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to view users from the " << dbname
<< " database");
}
}
}
return Status::OK();
}
Status checkAuthForRevokePrivilegesFromRoleCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
PrivilegeVector privileges;
RoleName unusedRoleName;
Status status = auth::parseAndValidateRolePrivilegeManipulationCommands(
cmdObj, "revokePrivilegesFromRole", dbname, &unusedRoleName, &privileges);
if (!status.isOK()) {
return status;
}
return checkAuthorizedToRevokePrivileges(authzSession, privileges);
}
Status checkAuthForDropAllRolesFromDatabaseCommand(Client* client, const std::string& dbname) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forDatabaseName(dbname),
ActionType::dropRole)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to drop roles from the " << dbname
<< " database");
}
return Status::OK();
}
Status checkAuthForRolesInfoCommand(Client* client,
const std::string& dbname,
const BSONObj& cmdObj) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
auth::RolesInfoArgs args;
Status status = auth::parseRolesInfoCommand(cmdObj, dbname, &args);
if (!status.isOK()) {
return status;
}
if (args.allForDB) {
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(dbname), ActionType::viewRole)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to view roles from the " << dbname
<< " database");
}
} else {
for (size_t i = 0; i < args.roleNames.size(); ++i) {
if (authzSession->isAuthenticatedAsUserWithRole(args.roleNames[i])) {
continue; // Can always see roles that you are a member of
}
if (!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forDatabaseName(args.roleNames[i].getDB()),
ActionType::viewRole)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to view roles from the "
<< args.roleNames[i].getDB()
<< " database");
}
}
}
return Status::OK();
}
Status checkAuthForInvalidateUserCacheCommand(Client* client) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::invalidateUserCache)) {
return Status(ErrorCodes::Unauthorized, "Not authorized to invalidate user cache");
}
return Status::OK();
}
Status checkAuthForGetUserCacheGenerationCommand(Client* client) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::internal)) {
return Status(ErrorCodes::Unauthorized, "Not authorized to get cache generation");
}
return Status::OK();
}
Status checkAuthForMergeAuthzCollectionsCommand(Client* client, const BSONObj& cmdObj) {
auth::MergeAuthzCollectionsArgs args;
Status status = auth::parseMergeAuthzCollectionsCommand(cmdObj, &args);
if (!status.isOK()) {
return status;
}
AuthorizationSession* authzSession = AuthorizationSession::get(client);
ActionSet actions;
actions.addAction(ActionType::createUser);
actions.addAction(ActionType::createRole);
actions.addAction(ActionType::grantRole);
actions.addAction(ActionType::revokeRole);
if (args.drop) {
actions.addAction(ActionType::dropUser);
actions.addAction(ActionType::dropRole);
}
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forAnyNormalResource(),
actions)) {
return Status(ErrorCodes::Unauthorized,
"Not authorized to update user/role data using _mergeAuthzCollections"
" command");
}
if (!args.usersCollName.empty() &&
!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(NamespaceString(args.usersCollName)),
ActionType::find)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to read " << args.usersCollName);
}
if (!args.rolesCollName.empty() &&
!authzSession->isAuthorizedForActionsOnResource(
ResourcePattern::forExactNamespace(NamespaceString(args.rolesCollName)),
ActionType::find)) {
return Status(ErrorCodes::Unauthorized,
str::stream() << "Not authorized to read " << args.rolesCollName);
}
return Status::OK();
}
Status checkAuthForAuthSchemaUpgradeCommand(Client* client) {
AuthorizationSession* authzSession = AuthorizationSession::get(client);
if (!authzSession->isAuthorizedForActionsOnResource(ResourcePattern::forClusterResource(),
ActionType::authSchemaUpgrade)) {
return Status(ErrorCodes::Unauthorized, "Not authorized to run authSchemaUpgrade command.");
}
return Status::OK();
}
} // namespace auth
} // namespace mongo
|