Vulnerability Monitor

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CVE-2019-12571

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.

Published

2019-07-11T20:15:12.803

Last Modified

2024-11-21T04:23:06.757

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.1 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

9.2

Weaknesses

Type: Primary
CWE-59

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	londontrustmedia	private_internet_access_vpn_client	0.9.8	Yes
Operating System	apple	macos	-	No

References

https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txt Exploit, Third Party Advisory ([email protected])
https://github.com/mirchr/security-research/blob/master/vulnerabilities/PIA/CVE-2019-12571.txt Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)