RCE in Electron
CVE-2023-39956
Electron is a framework which lets you write cross-platform desktop applications using JavaScript, HTML and CSS. Electron apps that are launched as command line executables are impacted. Specifically this issue can only be exploited if the following conditions are met: 1. The app is launched with an attacker-controlled working directory and 2. The attacker has the ability to write files to that working directory. This makes the risk quite low, in fact normally issues of this kind are considered outside of our threat model as similar to Chromium we exclude Physically Local Attacks but given the ability for this issue to bypass certain protections like ASAR Integrity it is being treated with higher importance. This issue has been fixed in versions:`26.0.0-beta.13`, `25.4.1`, `24.7.1`, `23.3.13`, and `22.3.19`. There are no app side workarounds, users must update to a patched version of Electron.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.006 (43.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L.
Affected products
- Electron — versions < 22.3.19, >= 23.0.0, < 23.3.13, >= 24.0.0, < 24.7.1
- Electronjs Electron — versions 26.0.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-39956?
- CVE-2023-39956 is a medium-severity vulnerability in Electron, classified under Code Injection. CVSS score: 6.1/10. Published 2023-09-06.
- How severe is CVE-2023-39956?
- Medium severity. CVSS v3 base score is 6.1 out of 10.