Описание
Deno node:crypto doesn't finalize cipher
Summary
The vulnerability allows an attacker to have infinite encryptions.
This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server secrets.
PoC
import crypto from "node:crypto";
const key = crypto.randomBytes(32);
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipheriv("aes-256-cbc", key, iv);
cipher.final()
console.log(cipher);
Expected Output
Cipheriv {
_decoder: null,
_options: undefined,
Symbol(kHandle): CipherBase {}
}
Actual Output
Cipheriv {
_events: {
close: undefined,
error: undefined,
prefinish: [Function: prefinish],
finish: undefined,
drain: undefined,
data: undefined,
end: undefined,
readable: undefined
},
_readableState: ReadableState {
highWaterMark: 65536,
buffer: [],
bufferIndex: 0,
length: 0,
pipes: [],
awaitDrainWriters: null,
[Symbol(kState)]: 1048844
},
_writableState: WritableState {
highWaterMark: 65536,
length: 0,
corked: 0,
onwrite: [Function: bound onwrite],
writelen: 0,
bufferedIndex: 0,
pendingcb: 0,
[Symbol(kState)]: 17580812,
[Symbol(kBufferedValue)]: null
},
allowHalfOpen: true,
_final: [Function: final],
_maxListeners: undefined,
_transform: [Function: transform],
_eventsCount: 1,
[Symbol(kCapture)]: false,
[Symbol(kCallback)]: null
}
Mitigations
All users should upgrade to Deno v2.6.0 or newer.
Пакеты
Наименование
deno
rust
Затронутые версииВерсия исправления
<= 2.5.6
2.6.0
Связанные уязвимости
nvd
4 дня назад
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Before 2.6.0, node:crypto doesn't finalize cipher. The vulnerability allows an attacker to have infinite encryptions. This can lead to naive attempts at brute forcing, as well as more refined attacks with the goal to learn the server secrets. This vulnerability is fixed in 2.6.0.