GitHub Advisory DatabaseGHSA-R4PF-3V7R-HH55electron-builder's NSIS installer - execute arbitrary code on the target machine (Windows only)
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
AI Score
Confidence
High
EPSS
Percentile
15.5%
Impact
Windows-Only: 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.
Patches
Fixed in https://github.com/electron-userland/electron-builder/pull/8059
Workarounds
None, it 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.
References
https://cwe.mitre.org/data/definitions/426.html
https://cwe.mitre.org/data/definitions/427
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| appcheap | app_builder | * | cpe:2.3:a:appcheap:app_builder:*:*:*:*:*:wordpress:*:* |
References
github.com/advisories/GHSA-r4pf-3v7r-hh55
github.com/electron-userland/electron-builder/commit/8f4acff3c2d45c1cb07779bb3fe79644408ee387
github.com/electron-userland/electron-builder/pull/8059
github.com/electron-userland/electron-builder/security/advisories/GHSA-r4pf-3v7r-hh55
nvd.nist.gov/vuln/detail/CVE-2024-27303
Related
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
AI Score
Confidence
High
EPSS
Percentile
15.5%