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Vulnerability Details : CVE-2019-14899

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.
Publish Date : 2019-12-11 Last Update Date : 2021-07-05
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication ???
Gained Access None
Vulnerability Type(s)
CWE ID 300

- Products Affected By CVE-2019-14899

# Product Type Vendor Product Version Update Edition Language
1 OS Apple Ipad Os * * * * Version Details Vulnerabilities
2 OS Apple Iphone Os * * * * Version Details Vulnerabilities
3 OS Apple Mac Os X * * * * Version Details Vulnerabilities
4 OS Apple Tvos * * * * Version Details Vulnerabilities
5 OS Freebsd Freebsd - * * * Version Details Vulnerabilities
6 OS Linux Linux Kernel - * * * Version Details Vulnerabilities
7 OS Openbsd Openbsd - * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apple Ipad Os 1
Apple Iphone Os 1
Apple Mac Os X 1
Apple Tvos 1
Freebsd Freebsd 1
Linux Linux Kernel 1
Openbsd Openbsd 1

- References For CVE-2019-14899
FULLDISC 20201215 APPLE-SA-2020-12-14-4 Additional information for APPLE-SA-2020-11-13-1 macOS Big Sur 11.0.1
FULLDISC 20201115 APPLE-SA-2020-11-13-3 Additional information for APPLE-SA-2020-09-16-1 iOS 14.0 and iPadOS 14.0 CONFIRM
FULLDISC 20200717 APPLE-SA-2020-07-15-1 iOS 13.6 and iPadOS 13.6
FULLDISC 20200717 APPLE-SA-2020-07-15-3 tvOS 13.4.8
MLIST [oss-security] 20200813 Blind in/on-path attacks against VPN-tunneled connections (CVE-2019-14899 follow-up)
MLIST [oss-security] 20201007 Re: [CVE-2019-14899] Inferring and hijacking VPN-tunneled TCP connections. CONFIRM
FULLDISC 20200717 APPLE-SA-2020-07-15-2 macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra CONFIRM CONFIRM CONFIRM CONFIRM

- Metasploit Modules Related To CVE-2019-14899

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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