CVE-2023-39956: electron Code Injection

Vulnerability summary

CVE-2023-39956 is a medium (CVSS 6.6) Code Injection vulnerability in electron. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41.2% of scored vulnerabilities.

Timeline

1. 06-09-2023
   PublishedVulnerability first disclosed.
2. 26-09-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.