CVE-2020-14000

Katalog CVE

CVSS 9.8 · Critical EPSS 2,8%

Kerentanan Deserialization of Untrusted Data pada mit scratch-vm. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

MIT Lifelong Kindergarten Scratch scratch-vm before 0.2.0-prerelease.20200714185213 loads extension URLs from untrusted project.json files with certain _ characters, resulting in remote code execution because the URL's content is treated as a script and is executed as a worker. The responsible code is getExtensionIdForOpcode in serialization/sb3.js. The use of _ is incompatible with a protection mechanism in older versions, in which URLs were split and consequently deserialization attacks were prevented. NOTE: the scratch.mit.edu hosted service is not affected because of the lack of worker scripts.

Rincian

Terbit di NVD

16 Juli 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

2,8% peluang dieksploitasi; lebih tinggi dari 86,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://scratch.mit.edu/discuss/topic/422904/?page=1#post-4223443 advisory vendor
• https://github.com/LLK/scratch-vm/pull/2476 advisory pihak ketiga