Описание
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
Ссылки
- ExploitIssue TrackingPatchThird Party Advisory
- Third Party Advisory
- PatchThird Party Advisory
- ExploitIssue TrackingPatchThird Party Advisory
- Third Party Advisory
- PatchThird Party Advisory
Уязвимые конфигурации
Одно из
EPSS
4 Medium
CVSS3
4.3 Medium
CVSS2
Дефекты
Связанные уязвимости
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.
A flaw was found in dnsmasq in versions before 2.85. When configured t ...
EPSS
4 Medium
CVSS3
4.3 Medium
CVSS2