PT-2019-20013 · Unknown · Realms-Shim

Published 2019-10-04 · Updated 2019-10-04

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions realms-shim versions prior to 1.2.0

Description The issue allows an attacker to potentially escape the sandbox and execute arbitrary code by utilizing Reflect.construct on the sandboxed Function constructor to reach the prototypes of the primal Realm.

Recommendations For realms-shim versions prior to 1.2.0, upgrade to version 1.2.0 or later.

Fix

Related Identifiers

GHSA-6JG8-7333-554W

Affected Products

Realms-Shim

References · 10

• https://osv.dev/vulnerability/GHSA-6jg8-7333-554w · Vendor Advisory
• https://github.com/Agoric/realms-shim/security/advisories/GHSA-6jg8-7333-554w · Note
• https://github.com/Agoric/realms-shim · Note
• https://npmjs.com/advisories/1181 · Note
• https://npmjs.com/advisories/1190 · Note
• https://npmjs.com/advisories/1191 · Note
• https://npmjs.com/advisories/1180 · Note
• https://npmjs.com/advisories/1182 · Note
• https://snyk.io/vuln/SNYK-JS-REALMSSHIM-471680 · Note
• https://github.com/advisories/GHSA-6jg8-7333-554w · Note