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Add toggle to enable/disable rule install from SOs #106189

Merged
merged 9 commits into from
Jul 21, 2021
Original file line number Diff line number Diff line change
Expand Up @@ -389,6 +389,8 @@ kibana_vars=(
xpack.securitySolution.maxTimelineImportExportSize
xpack.securitySolution.maxTimelineImportPayloadBytes
xpack.securitySolution.packagerTaskInterval
xpack.securitySolution.prebuiltRulesFromFileSystem
xpack.securitySolution.prebuiltRulesFromSavedObjects
xpack.spaces.enabled
xpack.spaces.maxSpaces
xpack.task_manager.enabled
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6 changes: 6 additions & 0 deletions x-pack/plugins/security_solution/server/config.ts
Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,12 @@ export const configSchema = schema.object({
* Artifacts Configuration
*/
packagerTaskInterval: schema.string({ defaultValue: '60s' }),

/**
* Detection prebuilt rules
*/
prebuiltRulesFromFileSystem: schema.boolean({ defaultValue: true }),
prebuiltRulesFromSavedObjects: schema.boolean({ defaultValue: true }),
});

export const createConfig = (context: PluginInitializerContext) =>
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,8 @@ export const createMockConfig = (): ConfigType => ({
endpointResultListDefaultPageSize: 10,
packagerTaskInterval: '60s',
alertMergeStrategy: 'missingFields',
prebuiltRulesFromFileSystem: true,
prebuiltRulesFromSavedObjects: false,
});

export const mockGetCurrentUser = {
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Original file line number Diff line number Diff line change
Expand Up @@ -297,13 +297,16 @@ describe('add_prepackaged_rules_route', () => {
getExceptionListClient: jest.fn(),
getListClient: jest.fn(),
};
const config = createMockConfig();

await createPrepackagedRules(
context,
siemMockClient,
clients.alertsClient,
{} as FrameworkRequest,
1200,
config.prebuiltRulesFromFileSystem,
config.prebuiltRulesFromSavedObjects,
mockExceptionsClient
);

Expand All @@ -313,13 +316,16 @@ describe('add_prepackaged_rules_route', () => {

test('uses passed in exceptions list client when lists client not available in context', async () => {
const { lists, ...myContext } = context;
const config = createMockConfig();

await createPrepackagedRules(
myContext,
siemMockClient,
clients.alertsClient,
{} as FrameworkRequest,
1200,
config.prebuiltRulesFromFileSystem,
config.prebuiltRulesFromSavedObjects,
mockExceptionsClient
);

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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,9 @@ export const addPrepackedRulesRoute = (
siemClient,
alertsClient,
frameworkRequest,
config.maxTimelineImportExportSize
config.maxTimelineImportExportSize,
config.prebuiltRulesFromFileSystem,
config.prebuiltRulesFromSavedObjects
);
return response.ok({ body: validated ?? {} });
} catch (err) {
Expand All @@ -104,7 +106,9 @@ export const createPrepackagedRules = async (
siemClient: AppClient,
alertsClient: AlertsClient,
frameworkRequest: FrameworkRequest,
maxTimelineImportExportSize: number,
maxTimelineImportExportSize: ConfigType['maxTimelineImportExportSize'],
prebuiltRulesFromFileSystem: ConfigType['prebuiltRulesFromFileSystem'],
prebuiltRulesFromSavedObjects: ConfigType['prebuiltRulesFromSavedObjects'],
exceptionsClient?: ExceptionListClient
): Promise<PrePackagedRulesAndTimelinesSchema | null> => {
const esClient = context.core.elasticsearch.client;
Expand All @@ -121,7 +125,11 @@ export const createPrepackagedRules = async (
await exceptionsListClient.createEndpointList();
}

const latestPrepackagedRules = await getLatestPrepackagedRules(ruleAssetsClient);
const latestPrepackagedRules = await getLatestPrepackagedRules(
ruleAssetsClient,
prebuiltRulesFromFileSystem,
prebuiltRulesFromSavedObjects
);
const prepackagedRules = await getExistingPrepackagedRules({ alertsClient });
const rulesToInstall = getRulesToInstall(latestPrepackagedRules, prepackagedRules);
const rulesToUpdate = getRulesToUpdate(latestPrepackagedRules, prepackagedRules);
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,11 @@ export const getPrepackagedRulesStatusRoute = (
}

try {
const latestPrepackagedRules = await getLatestPrepackagedRules(ruleAssetsClient);
const latestPrepackagedRules = await getLatestPrepackagedRules(
ruleAssetsClient,
config.prebuiltRulesFromFileSystem,
config.prebuiltRulesFromSavedObjects
);
const customRules = await findRules({
alertsClient,
perPage: 1,
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ import { rawRules } from './prepackaged_rules';
import { RuleAssetSavedObjectsClient } from './rule_asset_saved_objects_client';
import { IRuleAssetSOAttributes } from './types';
import { SavedObjectAttributes } from '../../../../../../../src/core/types';
import { ConfigType } from '../../../config';

/**
* Validate the rules from the file system and throw any errors indicating to the developer
Expand Down Expand Up @@ -103,21 +104,25 @@ export const getPrepackagedRules = (
};

export const getLatestPrepackagedRules = async (
client: RuleAssetSavedObjectsClient
client: RuleAssetSavedObjectsClient,
prebuiltRulesFromFileSystem: ConfigType['prebuiltRulesFromFileSystem'],
prebuiltRulesFromSavedObjects: ConfigType['prebuiltRulesFromSavedObjects']
): Promise<AddPrepackagedRulesSchemaDecoded[]> => {
// build a map of the most recent version of each rule
const prepackaged = getPrepackagedRules();
const prepackaged = prebuiltRulesFromFileSystem ? getPrepackagedRules() : [];
const ruleMap = new Map(prepackaged.map((r) => [r.rule_id, r]));

// check the rules installed via fleet and create/update if the version is newer
const fleetRules = await getFleetInstalledRules(client);
const fleetUpdates = fleetRules.filter((r) => {
const rule = ruleMap.get(r.rule_id);
return rule == null || rule.version < r.version;
});
if (prebuiltRulesFromSavedObjects) {
const fleetRules = await getFleetInstalledRules(client);
const fleetUpdates = fleetRules.filter((r) => {
const rule = ruleMap.get(r.rule_id);
return rule == null || rule.version < r.version;
});

// add the new or updated rules to the map
fleetUpdates.forEach((r) => ruleMap.set(r.rule_id, r));
// add the new or updated rules to the map
fleetUpdates.forEach((r) => ruleMap.set(r.rule_id, r));
}

return Array.from(ruleMap.values());
};
3 changes: 3 additions & 0 deletions x-pack/test/security_solution_cypress/config.ts
Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,9 @@ export default async function ({ readConfigFile }: FtrConfigProviderContext) {
'--csp.strict=false',
// define custom kibana server args here
`--elasticsearch.ssl.certificateAuthorities=${CA_CERT_PATH}`,
// retrieve rules from the filesystem but not from fleet for Cypress tests
'--xpack.securitySolution.prebuiltRulesFromFileSystem=true',
'--xpack.securitySolution.prebuiltRulesFromSavedObjects=false',
],
},
};
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