Vulnerabilities > CVE-2019-14899
Attack vector
ADJACENT_NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
The Hacker News
| id | THN:FD10C34E4C222666AC0DBB5533C900AF |
| last seen | 2019-12-06 |
| modified | 2019-12-06 |
| published | 2019-12-06 |
| reporter | The Hacker News |
| source | https://thehackernews.com/2019/12/linux-vpn-hacking.html |
| title | New Linux Bug Lets Attackers Hijack Encrypted VPN Connections |
References
- http://seclists.org/fulldisclosure/2020/Dec/32
- http://seclists.org/fulldisclosure/2020/Dec/32
- http://seclists.org/fulldisclosure/2020/Jul/23
- http://seclists.org/fulldisclosure/2020/Jul/23
- http://seclists.org/fulldisclosure/2020/Jul/24
- http://seclists.org/fulldisclosure/2020/Jul/24
- http://seclists.org/fulldisclosure/2020/Jul/25
- http://seclists.org/fulldisclosure/2020/Jul/25
- http://seclists.org/fulldisclosure/2020/Nov/20
- http://seclists.org/fulldisclosure/2020/Nov/20
- http://www.openwall.com/lists/oss-security/2020/08/13/2
- http://www.openwall.com/lists/oss-security/2020/08/13/2
- http://www.openwall.com/lists/oss-security/2020/10/07/3
- http://www.openwall.com/lists/oss-security/2020/10/07/3
- http://www.openwall.com/lists/oss-security/2021/07/05/1
- http://www.openwall.com/lists/oss-security/2021/07/05/1
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14899
- https://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/
- https://openvpn.net/security-advisory/no-flaws-found-in-openvpn-software/
- https://support.apple.com/kb/HT211288
- https://support.apple.com/kb/HT211288
- https://support.apple.com/kb/HT211289
- https://support.apple.com/kb/HT211289
- https://support.apple.com/kb/HT211290
- https://support.apple.com/kb/HT211290
- https://support.apple.com/kb/HT211850
- https://support.apple.com/kb/HT211850
- https://support.apple.com/kb/HT211931
- https://support.apple.com/kb/HT211931