CVE-2019-14899

CVSS V2 Medium 4.9 CVSS V3 High 7.4

Description

A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel.

Overview

CVE ID
CVE-2019-14899

Assigner
secalert@redhat.com

Vulnerability Status
Analyzed

Published Version
2019-12-11T15:15:14

Last Modified Date
2023-03-01T16:40:04

Weakness Enumerations

CWE	URL
CWE-300	http://cwe.mitre.org/data/definitions/300.html
NVD-CWE-Other	http://cwe.mitre.org/data/definitions/NVD-Other.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version End
cpe:2.3:o:freebsd:freebsd:-:::::::*	1	OR
cpe:2.3:o:linux:linux_kernel:-:::::::*	1	OR
cpe:2.3:o:openbsd:openbsd:-:::::::*	1	OR
cpe:2.3:o:apple:ipad_os::::::::	1	OR	13.6
cpe:2.3:o:apple:iphone_os::::::::	1	OR	13.6
cpe:2.3:o:apple:mac_os_x::::::::	1	OR	10.15.6
cpe:2.3:o:apple:tvos::::::::	1	OR	13.4.8

CVSS Version 2

Version
2.0

Vector String
AV:A/AC:M/Au:S/C:P/I:P/A:P

Access Vector
ADJACENT_NETWORK

Access Compatibility
MEDIUM

Authentication
SINGLE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
4.9

Severity
MEDIUM

Exploitability Score
4.4

Impact Score
6.4

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Attack Vector
ADJACENT_NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
7.4

Base Severity
HIGH

Exploitability Score
1.5

Impact Score
5.9

References

Reference URL	Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899	Issue Tracking Third Party Advisory
https://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/	Third Party Advisory
https://support.apple.com/kb/HT211290	Third Party Advisory
https://support.apple.com/kb/HT211288	Third Party Advisory
https://support.apple.com/kb/HT211289	Third Party Advisory
http://seclists.org/fulldisclosure/2020/Jul/24	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/Jul/23	Mailing List Third Party Advisory
http://seclists.org/fulldisclosure/2020/Jul/25	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/08/13/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/10/07/3
https://support.apple.com/kb/HT211931
https://support.apple.com/kb/HT211850
http://seclists.org/fulldisclosure/2020/Nov/20
http://seclists.org/fulldisclosure/2020/Dec/32
http://www.openwall.com/lists/oss-security/2021/07/05/1

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2019-14899
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14899

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:08:55				Added to TrackCVE
2022-12-04 07:39:29	2019-12-11T15:15Z	2019-12-11T15:15:14	CVE Published Date	updated
2022-12-04 07:39:29		2021-07-05T15:15:07	CVE Modified Date	updated
2022-12-04 07:39:29		Modified	Vulnerability Status	updated
2023-01-09 18:12:59		2023-01-09T16:41:59	CVE Modified Date	updated
2023-01-09 18:12:59			Weakness Enumeration	update
2023-01-09 19:11:36	Modified	Undergoing Analysis	Vulnerability Status	updated
2023-03-01 17:09:47		2023-03-01T16:40:04	CVE Modified Date	updated
2023-03-01 17:09:47	Undergoing Analysis	Analyzed	Vulnerability Status	updated