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25 lines
1.7 KiB
JSON
25 lines
1.7 KiB
JSON
{
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"id": "CVE-2024-6640",
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"sourceIdentifier": "secteam@freebsd.org",
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"published": "2024-08-12T13:38:39.380",
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"lastModified": "2024-08-12T13:41:36.517",
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"vulnStatus": "Awaiting Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In ICMPv6 Neighbor Discovery (ND), the ID is always 0. When pf is configured to allow ND and block incoming Echo Requests, a crafted Echo Request packet after a Neighbor Solicitation (NS) can trigger an Echo Reply. The packet has to come from the same host as the NS and have a zero as identifier to match the state created by the Neighbor Discovery and allow replies to be generated.\n\nICMPv6 packets with identifier value of zero bypass firewall rules written on the assumption that the incoming packets are going to create a state in the state table."
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},
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{
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"lang": "es",
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"value": "En ICMPv6 Neighbor Discovery (ND), el ID es siempre 0. Cuando pf est\u00e1 configurado para permitir ND y bloquear solicitudes de eco entrantes, un paquete de solicitud de eco manipulado despu\u00e9s de una solicitud de vecino (NS) puede desencadenar una respuesta de eco. El paquete debe provenir del mismo host que el NS y tener un cero como identificador para coincidir con el estado creado por Neighbor Discovery y permitir que se generen respuestas. Paquetes ICMPv6 con valor de identificador de reglas de firewall de omisi\u00f3n cero escritos bajo el supuesto de que los paquetes entrantes crear\u00e1n un estado en la tabla de estados."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://security.freebsd.org/advisories/FreeBSD-SA-24:05.pf.asc",
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"source": "secteam@freebsd.org"
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}
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]
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} |