CVSS: 7.2EPSS: 0%CPEs: 3EXPL: 1CVE-2020-26262 – Loopback bypass in Coturn
https://notcve.org/view.php?id=CVE-2020-26262
Coturn is free open source implementation of TURN and STUN Server. Coturn before version 4.5.2 by default does not allow peers to connect and relay packets to loopback addresses in the range of `127.x.x.x`. However, it was observed that when sending a `CONNECT` request with the `XOR-PEER-ADDRESS` value of `0.0.0.0`, a successful response was received and subsequently, `CONNECTIONBIND` also received a successful response. Coturn then is able to relay packets to the loopback interface. Additionally, when coturn is listening on IPv6, which is default, the loopback interface can also be reached by making use of either `[::1]` or `[::]` as the peer address. • https://github.com/coturn/coturn/blob/57180ab60afcaeb13537e69ae8cb8aefd8f3f546/ChangeLog#L48 https://github.com/coturn/coturn/commit/abfe1fd08d78baa0947d17dac0f7411c3d948e4d https://github.com/coturn/coturn/security/advisories/GHSA-6g6j-r9rf-cm7p https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G54UIUFTEC6RLPOISMB6FUW7456SBZC4 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M4CJOPAQT43MYAFU3UROGLEXN3Z6RS4H • CWE-441: Unintended Proxy or Intermediary ('Confused Deputy') CWE-682: Incorrect Calculation •
CVSS: 7.5EPSS: 0%CPEs: 11EXPL: 0CVE-2020-4067 – Improper Initialization in coturn
https://notcve.org/view.php?id=CVE-2020-4067
In coturn before version 4.5.1.3, there is an issue whereby STUN/TURN response buffer is not initialized properly. There is a leak of information between different client connections. One client (an attacker) could use their connection to intelligently query coturn to get interesting bytes in the padding bytes from the connection of another client. This has been fixed in 4.5.1.3. En coturn anterior a la versión 4.5.1.3, se presenta un problema por el cual el búfer de respuesta STUN/TURN no se inicializa apropiadamente. • http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00010.html https://github.com/coturn/coturn/blob/aab60340b201d55c007bcdc853230f47aa2dfdf1/ChangeLog#L15 https://github.com/coturn/coturn/issues/583 https://github.com/coturn/coturn/security/advisories/GHSA-c8r8-8vp5-6gcm https://lists.debian.org/debian-lts-announce/2020/07/msg00002.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5G35UBNSRLL6SYRTODYTMBJ65TLQILUM https://lists.fedoraproject.org/archives/list/p • CWE-665: Improper Initialization •
CVSS: 7.7EPSS: 0%CPEs: 1EXPL: 0CVE-2018-4058
https://notcve.org/view.php?id=CVE-2018-4058
An exploitable unsafe default configuration vulnerability exists in the TURN server functionality of coTURN prior to 4.5.0.9. By default, the TURN server allows relaying external traffic to the loopback interface of its own host. This can provide access to other private services running on that host, which can lead to further attacks. An attacker can set up a relay with a loopback address as the peer on an affected TURN server to trigger this vulnerability. Existe una vulnerabilidad explotable de configuración insegura por defecto en la funcionalidad del servidor TURN de coTURN, en versiones anteriores a la 4.5.0.9. • https://talosintelligence.com/vulnerability_reports/TALOS-2018-0732 •
CVSS: 9.8EPSS: 0%CPEs: 3EXPL: 1CVE-2018-4056
https://notcve.org/view.php?id=CVE-2018-4056
An exploitable SQL injection vulnerability exists in the administrator web portal function of coTURN prior to version 4.5.0.9. A login message with a specially crafted username can cause an SQL injection, resulting in authentication bypass, which could give access to the TURN server administrator web portal. An attacker can log in via the external interface of the TURN server to trigger this vulnerability. Existe una vulnerabilidad de Inyección SQL explotable en la función del portal web de administrador de coTURN en versiones anteriores a la 4.5.0.9. Un mensaje de inicio de sesión con un nombre de usuario especialmente manipulado puede causar una inyección SQL, conduciendo a una omisión de autenticación, lo que podría conceder acceso al portal web de administrador del servidor TURN. • https://lists.debian.org/debian-lts-announce/2019/02/msg00017.html https://talosintelligence.com/vulnerability_reports/TALOS-2018-0730 https://www.debian.org/security/2019/dsa-4373 • CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') •
CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 0CVE-2018-4059
https://notcve.org/view.php?id=CVE-2018-4059
An exploitable unsafe default configuration vulnerability exists in the TURN server function of coTURN prior to version 4.5.0.9. By default, the TURN server runs an unauthenticated telnet admin portal on the loopback interface. This can provide administrator access to the TURN server configuration, which can lead to additional attacks. An attacker who can get access to the telnet port can gain administrator access to the TURN server. Existe una vulnerabilidad explotable de configuración insegura por defecto en la función del servidor TURN de coTURN, en versiones anteriores a la 4.5.0.9. • https://talosintelligence.com/vulnerability_reports/TALOS-2018-0733 • CWE-862: Missing Authorization •