Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2018-7311 First vendor Publication 2018-02-21
Vendor Cve Last vendor Modification 2024-03-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 5.9 Temporal Score 8.8
Exploitabality Sub Score 2.8
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 9 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

PrivateVPN 2.0.31 for macOS suffers from a root privilege escalation vulnerability. The software installs a privileged helper tool that runs as the root user. This privileged helper tool is installed as a LaunchDaemon and implements an XPC service. The XPC service is responsible for handling new VPN connection operations via the main PrivateVPN application. The privileged helper tool creates new VPN connections by executing the openvpn binary located in the /Applications/PrivateVPN.app/Contents/Resources directory. The openvpn binary can be overwritten by the default user, which allows an attacker that has already installed malicious software as the default user to replace the binary. When a new VPN connection is established, the privileged helper tool will launch this malicious binary, thus allowing an attacker to execute code as the root user. NOTE: the vendor has reportedly indicated that this behavior is "an acceptable part of their software.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7311

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-732 Incorrect Permission Assignment for Critical Resource (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

Source Url
MISC https://gist.github.com/anonymous/cfc3f3419804b22ee9e82ee8d16a661d
https://github.com/VerSprite/research/blob/eba22c8b506be6f7128ef5356281915d56...
https://github.com/VerSprite/research/blob/master/advisories/VS-2018-004.md

Alert History

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Date Informations
2024-03-21 09:28:40
  • Multiple Updates
2023-11-07 21:42:03
  • Multiple Updates
2021-05-04 13:20:19
  • Multiple Updates
2021-04-22 02:34:37
  • Multiple Updates
2020-05-23 01:19:09
  • Multiple Updates
2019-10-03 09:21:27
  • Multiple Updates
2018-03-19 13:20:33
  • Multiple Updates
2018-03-06 09:20:00
  • Multiple Updates
2018-02-27 09:20:13
  • Multiple Updates
2018-02-22 05:18:52
  • First insertion