Access Restriction Bypass Affecting deno package, versions <1.29.3


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.37% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Access Restriction Bypass vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RUST-DENO-3233636
  • published18 Jan 2023
  • disclosed18 Jan 2023
  • creditTristan F.

Introduced: 18 Jan 2023

CVE-2023-22499  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade deno to version 1.29.3 or higher.

Overview

deno is an a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.

Affected versions of this package are vulnerable to Access Restriction Bypass that allows attackers to spoof an interactive permission prompt using a multi-threaded program, by rewriting the prompt to suggest that program is waiting for user confirmation for an unrelated action.

NOTE: This is only exploitable if the Web Worker API is in use with an interactive permission prompt. Such an attack is very timing sensitive and can’t be reliably reproduced on every try.

Workaround

This can be avoided by enabling the --no-prompt flag.

CVSS Scores

version 3.1