CVE-2023-44402: ASAR Integrity bypass via filetype confusion in electron

High severity · published Dec 1, 2023

CVE-2023-44402

ASAR Integrity bypass via filetype confusion in electron

7.0

CVSS

0.2%

EPSS

On KEV

Description

Electron is an open source framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. This only impacts apps that have the `embeddedAsarIntegrityValidation` and `onlyLoadAppFromAsar` fuses enabled. Apps without these fuses enabled are not impacted. This issue is specific to macOS as these fuses are only currently supported on macOS. Specifically this issue can only be exploited if your app is launched from a filesystem the attacker has write access too. i.e. the ability to edit files inside the `.app` bundle on macOS which these fuses are supposed to protect against. There are no app side workarounds, you must update to a patched version of Electron.

CVSS vector

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

Attack vector

Local

Complexity

High

Privileges

None

User interaction

Required

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.2% · higher than 11% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

electron · electron

< 22.3.24; >= 23.0.0-alpha.1, <= 23.3.13; >= 24.0.0-alpha.1, < 24.8.3; >= 25.0.0-alpha.1, < 25.8.1; >= 26.0.0-alpha.1, < 26.2.1; >= 27.0.0-alpha.1, < 27.0.0-alpha.7 · source: vendor, NVD

Affected product

electron

All electron CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2023-44402

CVE.org

https://www.cve.org/CVERecord?id=CVE-2023-44402

Issue Tracking

https://github.com/electron/electron/pull/39788

Vendor Advisory

https://github.com/electron/electron/security/advisories/GHSA-7m48-wc93-9g85

Product

https://www.electronjs.org/docs/latest/tutorial/fuses