#nodejs

The Marvin Attack is a new side-channel attack on cryptographic implementations of RSA in which the attacker decrypts previously captured ciphertext by measuring, over a network, server response times to specially crafted messages. The attacker also may forge signatures with the same key as the one used for decryption. Red Hat published the principles and technical background of the Marvin Attack in September of 2023.Since that time, we have identified lots of other vulnerable implementations and have shipped fixes. Note that most of the CVEs in applications that use OpenSSL have only received

### Impact A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. ``` node:events:502 throw err; // Unhandled 'error' event ^ Error [ERR_UNHANDLED_ERROR]: Unhandled error. (undefined) at new NodeError (node:internal/errors:405:5) at Socket.emit (node:events:500:17) at /myapp/node_modules/socket.io/lib/socket.js:531:14 at process.processTicksAndRejections (node:internal/process/task_queues:77:11) { code: 'ERR_UNHANDLED_ERROR', context: undefined } ``` ### Affected versions | Version range | Needs minor update? | |------------------|------------------------------------------------| | `4.6.2...latest` | Nothing to do | | `3.0.0...4.6.1` | Please upgrade to `socket.io@4.6.2` (at least) | | `2.3.0...2.5.0` | Please upgrade to `socket.io@2.5.1` | ### Patches This issue is fixed by https://github.com/socketio/socket.io/commit/15...

Cybersecurity researchers have uncovered a new malware campaign that targets publicly exposed Docket API endpoints with the aim of delivering cryptocurrency miners and other payloads. Included among the tools deployed is a remote access tool that's capable of downloading and executing more malicious programs as well as a utility to propagate the malware via SSH, cloud analytics platform Datadog

### Impact A request with a number of headers exceeding the[`server.maxHeadersCount`][] threshold could be used to crash a ws server. ### Proof of concept ```js const http = require('http'); const WebSocket = require('ws'); const wss = new WebSocket.Server({ port: 0 }, function () { const chars = "!#$%&'*+-.0123456789abcdefghijklmnopqrstuvwxyz^_`|~".split(''); const headers = {}; let count = 0; for (let i = 0; i < chars.length; i++) { if (count === 2000) break; for (let j = 0; j < chars.length; j++) { const key = chars[i] + chars[j]; headers[key] = 'x'; if (++count === 2000) break; } } headers.Connection = 'Upgrade'; headers.Upgrade = 'websocket'; headers['Sec-WebSocket-Key'] = 'dGhlIHNhbXBsZSBub25jZQ=='; headers['Sec-WebSocket-Version'] = '13'; const request = http.request({ headers: headers, host: '127.0.0.1', port: wss.address().port }); request.end(); }); ``` ### Patches The vulnerability was fixed in ws@...

Red Hat Security Advisory 2024-3868-03 - Network Observability 1.6 for Red Hat OpenShift. Issues addressed include code execution, denial of service, memory exhaustion, and password leak vulnerabilities.

The recently identified threat actor uses public registries for distribution and has expanded capabilities to disrupt the software supply chain.

### Summary 1. If a super admin creates a collection where an item in the collection has an association to another collection, a user with the Author Role can see the list of associated items they did not create. They should only see their own items that they created, not all items ever created. ### Details At the top level every collection shows blank items for an Author if they did not create the item. This is ideal and works great. However if you associate one private collection to another private collection and an Author creates a new item. The pull down should not show the admins list of previously created items. It should be blank unitl they add their own items. ### PoC 1. Sign in as Admin. Navigate to content creation. 2. Select a collection and verify you have items you created there. And that they have associations to other protected collections. 3. Verify role permissions for your collections are set to CRUD if user created. 4. Log out and sign in as a unrelated Author. 5. ...

Azure Identity Libraries and Microsoft Authentication Library Elevation of Privilege Vulnerability

Ubuntu Security Notice 6822-1 - It was discovered that Node.js incorrectly handled certain inputs when it is using the policy mechanism. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to bypass the policy mechanism. It was discovered that Node.js incorrectly handled certain inputs when it is using the policy mechanism. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to perform a privilege escalation.

### Impact There are two separate code paths in which memory can be allocated per message in excess of the `grpc.max_receive_message_length` channel option: 1. If an incoming message has a size on the wire greater than the configured limit, the entire message is buffered before it is discarded. 2. If an incoming message has a size within the limit on the wire but decompresses to a size greater than the limit, the entire message is decompressed into memory, and on the server is not discarded. ### Patches This has been patched in versions 1.10.9, 1.9.15, and 1.8.22