Filtered by vendor Openvpn
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Total
45 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2018-7544 | 1 Openvpn | 1 Openvpn | 2024-05-17 | 6.4 MEDIUM | 9.1 CRITICAL |
| ** DISPUTED ** A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a "signal SIGTERM" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning. | |||||
| CVE-2023-46850 | 3 Debian, Fedoraproject, Openvpn | 4 Debian Linux, Fedora, Openvpn and 1 more | 2024-02-05 | N/A | 9.8 CRITICAL |
| Use after free in OpenVPN version 2.6.0 to 2.6.6 may lead to undefined behavoir, leaking memory buffers or remote execution when sending network buffers to a remote peer. | |||||
| CVE-2023-46849 | 3 Debian, Fedoraproject, Openvpn | 4 Debian Linux, Fedora, Openvpn and 1 more | 2024-02-05 | N/A | 7.5 HIGH |
| Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service. | |||||
| CVE-2022-33738 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN Access Server before 2.11 uses a weak random generator used to create user session token for the web portal | |||||
| CVE-2022-33737 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| The OpenVPN Access Server installer creates a log file readable for everyone, which from version 2.10.0 and before 2.11.0 may contain a random generated admin password | |||||
| CVE-2021-4234 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN Access Server 2.10 and prior versions are susceptible to resending multiple packets in a response to a reset packet sent from the client which the client again does not respond to, resulting in a limited amplification attack. | |||||
| CVE-2022-0547 | 3 Debian, Fedoraproject, Openvpn | 3 Debian Linux, Fedora, Openvpn | 2024-02-04 | 7.5 HIGH | 9.8 CRITICAL |
| OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials. | |||||
| CVE-2021-3824 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 4.3 MEDIUM | 6.1 MEDIUM |
| OpenVPN Access Server 2.9.0 through 2.9.4 allow remote attackers to inject arbitrary web script or HTML via the web login page URL. | |||||
| CVE-2020-15075 | 1 Openvpn | 1 Connect | 2024-02-04 | 3.6 LOW | 7.1 HIGH |
| OpenVPN Connect installer for macOS version 3.2.6 and older may corrupt system critical files it should not have access via symlinks in /tmp. | |||||
| CVE-2021-3547 | 1 Openvpn | 1 Openvpn | 2024-02-04 | 5.8 MEDIUM | 7.4 HIGH |
| OpenVPN 3 Core Library version 3.6 and 3.6.1 allows a man-in-the-middle attacker to bypass the certificate authentication by issuing an unrelated server certificate using the same hostname found in the verify-x509-name option in a client configuration. | |||||
| CVE-2020-15078 | 4 Canonical, Debian, Fedoraproject and 1 more | 4 Ubuntu Linux, Debian Linux, Fedora and 1 more | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks. | |||||
| CVE-2020-15077 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 3.5 LOW | 5.3 MEDIUM |
| OpenVPN Access Server 2.8.7 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks. | |||||
| CVE-2021-3613 | 1 Openvpn | 1 Connect | 2024-02-04 | 4.4 MEDIUM | 7.8 HIGH |
| OpenVPN Connect 3.2.0 through 3.3.0 allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (OpenVPNConnect.exe). | |||||
| CVE-2020-15076 | 1 Openvpn | 1 Private Tunnel | 2024-02-04 | 7.2 HIGH | 7.8 HIGH |
| Private Tunnel installer for macOS version 3.0.1 and older versions may corrupt system critical files it should not have access via symlinks in /tmp. | |||||
| CVE-2020-36382 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN Access Server 2.7.3 to 2.8.7 allows remote attackers to trigger an assert during the user authentication phase via incorrect authentication token data in an early phase of the user authentication resulting in a denial of service. | |||||
| CVE-2021-3606 | 2 Microsoft, Openvpn | 2 Windows, Openvpn | 2024-02-04 | 4.4 MEDIUM | 7.8 HIGH |
| OpenVPN before version 2.5.3 on Windows allows local users to load arbitrary dynamic loadable libraries via an OpenSSL configuration file if present, which allows the user to run arbitrary code with the same privilege level as the main OpenVPN process (openvpn.exe). | |||||
| CVE-2020-15074 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 5.0 MEDIUM | 7.5 HIGH |
| OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp. | |||||
| CVE-2020-11810 | 3 Debian, Fedoraproject, Openvpn | 3 Debian Linux, Fedora, Openvpn | 2024-02-04 | 4.3 MEDIUM | 3.7 LOW |
| An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use. | |||||
| CVE-2020-11462 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 4.3 MEDIUM | 7.5 HIGH |
| An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable. | |||||
| CVE-2020-8953 | 1 Openvpn | 1 Openvpn Access Server | 2024-02-04 | 7.5 HIGH | 9.8 CRITICAL |
| OpenVPN Access Server 2.8.x before 2.8.1 allows LDAP authentication bypass (except when a user is enrolled in two-factor authentication). | |||||