CVE-2024-25581

Transfer requests received over DoH can lead to a denial of service in DNSdist

CVSS 7.5 HIGHEPSS 1.1%CWE-20

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 7.5EPSS 1.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

13 may 2024Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Productos afectados

PowerDNS · DNSdist

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Referencias

https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html http://www.openwall.com/lists/oss-security/2024/05/13/1