CVE-2023-50387

CVE-2023-50387 DNS中的KeyTrap（CVE-2023-50387） 本仓库仅供教育目的使用。 密钥和签名的数量已被故意保持较低，以防止用于实际攻击，且不包含用于生成碰撞密钥的脚本。 测试 搭建PoC环境 root@kitploit: $ docker compose up --build 确认DNSSEC正常工作 root@kitploit: $ docker compose exec -it attacker dig @10.10.0.3 a.a.test ; DiG 9.18.24 @10.10.0.3 a.a.test ; 1 server found ;;...

Important: bind

Issue Overview: Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the "KeyTrap" issue. The protocol specification...

RHEL 8 : bind9.16 (RHSA-2024:1781)

"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:1781 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named...

bind9: KeyTrap - Extreme CPU consumption in DNSSEC validator

Processing specially crafted responses coming from DNSSEC-signed zones can lead to uncontrolled CPU usage, leading to a Denial of Service in the DNSSEC-validating resolver side. This vulnerability applies only for systems where DNSSEC validation is enabled...

Important: dnsmasq

Issue Overview: Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the "KeyTrap" issue. The protocol specification...

Important: unbound

Issue Overview: Certain DNSSEC aspects of the DNS protocol in RFC 4035 and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses when there is a zone with many DNSKEY and RRSIG records, aka the "KeyTrap" issue. The protocol specification...

AZL-34350 CVE-2023-50387 affecting package bind for versions less than 9.16.48-1

Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CPU consumption via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG...