CVE-2020-4075 Arbitrary file read via window-open IPC in Electron

2020-07-0700:05:28

CWE-552

GitHub_M

www.cve.org

CVSS3

6.8

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS

0.002

Percentile

55.1%

JSON

In Electron before versions 7.2.4, 8.2.4, and 9.0.0-beta21, arbitrary local file read is possible by defining unsafe window options on a child window opened via window.open. As a workaround, ensure you are calling event.preventDefault() on all new-window events where the url or options is not something you expect. This is fixed in versions 9.0.0-beta.21, 8.2.4 and 7.2.4.

CNA Affected

[
  {
    "product": "electron",
    "vendor": "electron",
    "versions": [
      {
        "status": "affected",
        "version": ">= 9.0.0-beta.0, <= 9.0.0-beta.20"
      },
      {
        "status": "affected",
        "version": ">= 8.0.0, < 8.2.4"
      },
      {
        "status": "affected",
        "version": "< 7.2.4"
      }
    ]
  }
]