Input validation error in Electron - CVE-2020-4077
Published: July 7, 2020 / Updated: August 8, 2020
Vulnerability identifier: #VU34173
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Amber
CVE-ID: CVE-2020-4077
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Electron
Electron
Software vendor:
Electron
Electron
Description
The vulnerability allows a remote authenticated user to execute arbitrary code.
In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, there is a context isolation bypass. Code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions. Apps using both `contextIsolation` and `contextBridge` are affected. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.
Remediation
Install update from vendor's website.