CVE-2024-27303

2024-03-0619:15:08

CWE-426

CWE-427

[email protected]

web.nvd.nist.gov

cve-2024-27303

electron builder

nsis installer

windows

vulnerability

security

update

7.3 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

15.3%

JSON

electron-builder is a solution to package and build a ready for distribution Electron, Proton Native app for macOS, Windows and Linux. A vulnerability that only affects eletron-builder prior to 24.13.2 in Windows, the NSIS installer makes a system call to open cmd.exe via NSExec in the .nsh installer script. NSExec by default searches the current directory of where the installer is located before searching PATH. This means that if an attacker can place a malicious executable file named cmd.exe in the same folder as the installer, the installer will run the malicious file. Version 24.13.2 fixes this issue. No known workaround exists. The code executes at the installer-level before the app is present on the system, so there’s no way to check if it exists in a current installer.

Affected configurations

Vulners

Node

electron-userlandelectron_builderRange<24.13.2

CNA Affected

[
  {
    "vendor": "electron-userland",
    "product": "electron-builder",
    "versions": [
      {
        "version": "< 24.13.2",
        "status": "affected"
      }
    ]
  }
]