CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2024-25581 – Transfer requests received over DoH can lead to a denial of service in DNSdist
https://notcve.org/view.php?id=CVE-2024-25581
When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default. Cuando la compatibilidad con DNS entrante sobre HTTPS está habilitada mediante el proveedor nghttp2 y las consultas se enrutan a un backend solo tcp o DNS sobre TLS, un atacante puede desencadenar una falla de aserción en DNSdist enviando una solicitud de transferencia de zona (AXFR o IXFR). a través de DNS a través de HTTPS, lo que provoca que el proceso se detenga y, por lo tanto, conduce a una Denegación de Servicio. DNS sobre HTTPS no está habilitado de forma predeterminada y los servidores utilizan DNS simple (Do53) de forma predeterminada. • http://www.openwall.com/lists/oss-security/2024/05/13/1 https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html • CWE-20: Improper Input Validation •
CVSS: 5.9EPSS: 0%CPEs: 1EXPL: 0CVE-2018-14663
https://notcve.org/view.php?id=CVE-2018-14663
An issue has been found in PowerDNS DNSDist before 1.3.3 allowing a remote attacker to craft a DNS query with trailing data such that the addition of a record by dnsdist, for example an OPT record when adding EDNS Client Subnet, might result in the trailing data being smuggled to the backend as a valid record while not seen by dnsdist. This is an issue when dnsdist is deployed as a DNS Firewall and used to filter some records that should not be received by the backend. This issue occurs only when either the 'useClientSubnet' or the experimental 'addXPF' parameters are used when declaring a new backend. Se ha encontrado un problema en PowerDNS DNSDist en versiones anteriores a la 1.3.3, permitiendo a un atacante remoto manipular una consulta DNS con datos finales. Esto permite que la adición de un registro por parte de dnssist, por ejemplo, un registro OPT cuando se añade el EDNS Client Subnet, podría resultar en el contrabando de datos finales al backend como si dicho registro fuera válido cuando dnsdist no lo detecte. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14663 https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2018-08.html • CWE-20: Improper Input Validation •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2016-7069
https://notcve.org/view.php?id=CVE-2016-7069
An issue has been found in dnsdist before 1.2.0 in the way EDNS0 OPT records are handled when parsing responses from a backend. When dnsdist is configured to add EDNS Client Subnet to a query, the response may contain an EDNS0 OPT record that has to be removed before forwarding the response to the initial client. On a 32-bit system, the pointer arithmetic used when parsing the received response to remove that record might trigger an undefined behavior leading to a crash. Se ha descubierto un problema en dnsdist en versiones anteriores a la 1.2.0 en la forma en la que se gestionan los registros EDNS0 OPT al analizar respuestas desde un backend. Cuando dnsdist está configurado para añadir EDNS Client Subnet a una consulta, la respuesta podría contener un registro EDNS0 OPT que debe ser eliminado antes de reenviar la respuesta al cliente inicial. • http://www.securityfocus.com/bid/100509 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7069 https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-01.html • CWE-20: Improper Input Validation •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2017-7557
https://notcve.org/view.php?id=CVE-2017-7557
dnsdist version 1.1.0 is vulnerable to a flaw in authentication mechanism for REST API potentially allowing CSRF attack. dnsdist versión 1.1.0 es vulnerable a un error en el mecanismo de autenticación para la API REST, permitiendo potencialmente ataques de tipo Cross-Site Request Forgery (CSRF). • http://www.securityfocus.com/bid/100508 https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2017-02.html • CWE-287: Improper Authentication CWE-352: Cross-Site Request Forgery (CSRF) •