CVE-2025-34075

July 3, 2025, 3:13 p.m.

5.4
Medium

Description

An authenticated virtual machine escape vulnerability exists in HashiCorp Vagrant when using the default synced folder configuration. By design, Vagrant automatically mounts the host system’s project directory into the guest VM under /vagrant (or C:\vagrant on Windows). This includes the Vagrantfile configuration file, which is a Ruby script evaluated by the host every time a vagrant command is executed in the project directory. If a low-privileged attacker obtains shell access to the guest VM, they can append arbitrary Ruby code to the mounted Vagrantfile. When a user on the host later runs any vagrant command, the injected code is executed on the host with that user’s privileges. While this shared-folder behavior is well-documented by Vagrant, the security implications of Vagrantfile execution from guest-writable storage are not explicitly addressed. This effectively enables guest-to-host code execution in multi-tenant or adversarial VM scenarios.

Product(s) Impacted

Vendor Product Versions
Hashicorp
  • Vagrant
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-94
Improper 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.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a hashicorp vagrant / / / / / / / /

References

https://developer.hashicorp.com/vagrant
https://developer.hashicorp.com/vagrant/docs/synced-folders/basic_usage
https://developer.hashicorp.com/vagrant/docs/vagrantfile
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/local/vagrant_synced_folder_vagrantfile_breakout.rb
https://vulncheck.com/advisories/hashicorp-vagrant-synced-folder-vagrantfile-breakout
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/local/vagrant_synced_folder_vagrantfile_breakout.rb

Tags

CWE-94
disclosure@vulncheck.com
2025-07-02
CVE-2025-34075

CVSS Score

5.4 / 10

CVSS Data - 4.0

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Attack Requirements: PRESENT
  • Privileges Required: LOW
  • User Interaction: ACTIVE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: July 2, 2025, 8:15 p.m.
Last Modified: July 3, 2025, 3:13 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

disclosure@vulncheck.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.