CVE-2019-12571

Severity Score

7.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the London Trust Media Private Internet Access (PIA) VPN Client v0.9.8 beta (build 02099) for macOS could allow an authenticated, local attacker to overwrite arbitrary files. When the client initiates a connection, the XML /tmp/pia-watcher.plist file is created. If the file exists, it will be truncated and the contents completely overwritten. This file is removed on disconnect. An unprivileged user can create a hard or soft link to arbitrary files owned by any user on the system, including root. This creates a denial of service condition and possible data loss if leveraged by a malicious local user.

Una vulnerabilidad en el cliente VPN de Private Internet Access (PIA) versión 0.9.8 (build 02099) de London Trust Media para macOS, podría permitir que un atacante local autenticado sobrescriba archivos arbitrarios. Cuando el cliente inicia una conexión, se crea el archivo XML /tmp/pia-watcher.plist. Si el archivo existe, se truncará y el contenido se sobrescribirá por completo. Este archivo se elimina al desconectarse. Un usuario sin privilegios puede crear un enlace físico o de software a archivos arbitrarios propiedad de cualquier usuario en el sistema, incluida la root. Esto crea una condición de denegación de servicio y una posible pérdida de datos si es aprovechada por un usuario local malicioso.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-06-02 CVE Reserved
2019-07-11 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-59: Improper Link Resolution Before File Access ('Link Following')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txt	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Londontrustmedia Search vendor "Londontrustmedia"	Private Internet Access Vpn Client Search vendor "Londontrustmedia" for product "Private Internet Access Vpn Client"	0.9.8 Search vendor "Londontrustmedia" for product "Private Internet Access Vpn Client" and version "0.9.8"	beta	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe