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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,145 @@ | ||
| /* | ||
| * Copyright 2023 New Relic Corporation. All rights reserved. | ||
| * SPDX-License-Identifier: New Relic Software License v1.0 | ||
| */ | ||
|
|
||
| module.exports = initialize | ||
| const requestManager = require('../../core/request-manager'); | ||
| const secUtils = require("../../core/sec-utils"); | ||
| const API = require("../../../nr-security-api"); | ||
| const securityMetaData = require('../../core/security-metadata'); | ||
| const { EVENT_TYPE, EVENT_CATEGORY } = require('../../core/event-constants'); | ||
| const { NR_CSEC_FUZZ_REQUEST_ID } = require('../../core/constants'); | ||
| const logger = API.getLogger(); | ||
| const NRLIB = 'newrelic/lib'; | ||
| const SALIB = 'security-agent/lib' | ||
|
|
||
| /** | ||
| * Entry point of crypto module hook | ||
| * @param {*} shim | ||
| * @param {*} mod | ||
| * @param {*} moduleName | ||
| */ | ||
| function initialize(shim, mod, moduleName) { | ||
| if (API && API.getNRAgent() && API.getNRAgent().config.security.exclude_from_iast_scan.iast_detection_category.insecure_settings) { | ||
| logger.warn('insecure_settings detection is disabled'); | ||
| return; | ||
| } | ||
| logger.info('Instrumenting ' + moduleName) | ||
| cryptoCipherHooks(shim, mod, 'createCipheriv', moduleName); | ||
| cryptoHashHmacHooks(shim, mod, 'createHash', moduleName); | ||
| cryptoHashHmacHooks(shim, mod, 'createHmac', moduleName); | ||
| cryptoRandomHooks(shim, Math, 'random', "Math"); | ||
| } | ||
| /** | ||
| * wrapper to hook crypto cipher methods | ||
| * @param {*} shim | ||
| * @param {*} mod | ||
| * @param {*} methodName | ||
| * @param {*} moduleName | ||
| */ | ||
| function cryptoCipherHooks(shim, mod, methodName, moduleName) { | ||
| shim.wrap(mod, methodName, function makeWrapper(shim, fn) { | ||
| logger.debug(`Instrumenting ${moduleName}.${methodName}`); | ||
| return function wrapper() { | ||
| const interceptedArgs = [arguments[0]]; | ||
| shim.interceptedArgs = interceptedArgs; | ||
| const request = requestManager.getRequest(shim); | ||
| if (request && API.getSecAgent() && API.getSecAgent().status && API.getSecAgent().status.getStatus() === 'active') { | ||
| const traceObject = secUtils.getTraceObject(shim); | ||
| const secMetadata = securityMetaData.getSecurityMetaData(request, interceptedArgs, traceObject, secUtils.getExecutionId(), EVENT_TYPE.CRYPTO, EVENT_CATEGORY.CIPHER) | ||
| if (secMetadata.traceObject && secMetadata.traceObject.stacktrace && (secMetadata.traceObject.stacktrace[0].includes(NRLIB) || secMetadata.traceObject.stacktrace[0].includes(SALIB))) { | ||
| //do nothing | ||
| } | ||
| else { | ||
| const secEvent = API.generateSecEvent(secMetadata); | ||
| this.secEvent = secEvent; | ||
| API.sendEvent(secEvent); | ||
| } | ||
| } | ||
| const result = fn.apply(this, arguments); | ||
|
|
||
| if (result && request && request.headers[NR_CSEC_FUZZ_REQUEST_ID]) { | ||
| API.generateExitEvent(this.secEvent); | ||
| delete this.secEvent | ||
| } | ||
| return result; | ||
| } | ||
| }) | ||
| } | ||
|
|
||
|
|
||
| /** | ||
| * wrapper to hook crypto hash and mac methods | ||
| * @param {*} shim | ||
| * @param {*} mod | ||
| * @param {*} methodName | ||
| * @param {*} moduleName | ||
| */ | ||
| function cryptoHashHmacHooks(shim, mod, methodName, moduleName) { | ||
| shim.wrap(mod, methodName, function makeWrapper(shim, fn) { | ||
| logger.debug(`Instrumenting ${moduleName}.${methodName}`); | ||
| return function wrapper() { | ||
| const interceptedArgs = [arguments[0]]; | ||
| shim.interceptedArgs = interceptedArgs; | ||
| const request = requestManager.getRequest(shim); | ||
|
|
||
| if (request && arguments[0] !== 'sha256' && API.getSecAgent() && API.getSecAgent().status && API.getSecAgent().status.getStatus() === 'active') { | ||
| const traceObject = secUtils.getTraceObject(shim); | ||
| const secMetadata = securityMetaData.getSecurityMetaData(request, interceptedArgs, traceObject, secUtils.getExecutionId(), EVENT_TYPE.HASH, EVENT_CATEGORY.HASH) | ||
| if (secMetadata.traceObject && secMetadata.traceObject.stacktrace && (secMetadata.traceObject.stacktrace[0].includes(NRLIB) || secMetadata.traceObject.stacktrace[0].includes(SALIB))) { | ||
| //do nothing | ||
| } | ||
| else { | ||
| const secEvent = API.generateSecEvent(secMetadata); | ||
| this.secEvent = secEvent; | ||
| API.sendEvent(secEvent); | ||
| } | ||
| } | ||
| const result = fn.apply(this, arguments); | ||
| if (result && request && request.headers[NR_CSEC_FUZZ_REQUEST_ID] && arguments[0] !== 'sha256') { | ||
| API.generateExitEvent(this.secEvent); | ||
| delete this.secEvent | ||
| } | ||
| return result; | ||
| } | ||
| }) | ||
| } | ||
| /** | ||
| * Wrapper for random hooks | ||
| * @param {*} shim | ||
| * @param {*} mod | ||
| * @param {*} methodName | ||
| * @param {*} moduleName | ||
| */ | ||
| function cryptoRandomHooks(shim, mod, methodName, moduleName) { | ||
| shim.wrap(mod, methodName, function makeWrapper(shim, fn) { | ||
| logger.debug(`Instrumenting ${moduleName}.${methodName}`); | ||
| return function wrapper() { | ||
| const interceptedArgs = ["Math.random"]; | ||
| shim.interceptedArgs = interceptedArgs; | ||
| const request = requestManager.getRequest(shim); | ||
| if (request && API.getSecAgent() && API.getSecAgent().status && API.getSecAgent().status.getStatus() === 'active') { | ||
| const traceObject = secUtils.getTraceObject(shim); | ||
| const secMetadata = securityMetaData.getSecurityMetaData(request, interceptedArgs, traceObject, secUtils.getExecutionId(), EVENT_TYPE.RANDOM, EVENT_CATEGORY.WEAKRANDOM) | ||
| if (secMetadata.traceObject && secMetadata.traceObject.stacktrace && secMetadata.traceObject.stacktrace[0] && (secMetadata.traceObject.stacktrace[0].includes(NRLIB) || secMetadata.traceObject.stacktrace[0].includes(SALIB))) { | ||
| //do nothing | ||
| } | ||
| else { | ||
| const secEvent = API.generateSecEvent(secMetadata); | ||
| this.secEvent = secEvent; | ||
| API.sendEvent(secEvent); | ||
| } | ||
|
|
||
| } | ||
| const result = fn.apply(this, arguments); | ||
| if (result && request && request.headers[NR_CSEC_FUZZ_REQUEST_ID]) { | ||
| API.generateExitEvent(this.secEvent); | ||
| delete this.secEvent | ||
| } | ||
| return result; | ||
| } | ||
| }) | ||
| } | ||
|
|
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|
|
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