lottiedeyan/CVE20264893poc
GitHub: lottiedeyan/CVE20264893poc
针对 dnsmasq EDNS Client Subnet 验证缺陷(CVE-2026-4893)的漏洞 PoC 生成与复现工具。
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拓扑图:
https://medium.com/@yanyuyingshu/reproduction-journal-dnsmasq-ecs-validation-and-buffer-overflow-flaws-e0fe0f66f60c
步骤
1.vi /etc/dnsmasq.conf
port=5353
listen-address=xxx.xxx.xxx.x
bind-interfaces
no-resolv
no-hosts
no-poll
cache-size=1000
log-queries
log-facility=-
server=127.0.0.1#5354
add-subnet
(并重启 dnsmasq daemon)
2. python3 exp.py
标签:Dnsmasq, DNS安全, Go语言工具, PoC, 安全, 暴力破解, 超时处理, 逆向工具, 配置审计