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block ips in vhost

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zefie
2025-06-15 01:03:31 -04:00
parent 39a0aa76c7
commit 13d6a06ffa
1 changed files with 7 additions and 0 deletions
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7
zefie_wtvp_minisrv/includes/classes/WTVIRC.js
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@@ -1264,6 +1264,13 @@ class WTVIRC {
socket.write(`:${this.servername} 501 ${socket.nickname} :Invalid VHost format\r\n`); socket.write(`:${this.servername} 501 ${socket.nickname} :Invalid VHost format\r\n`);
break; break;
} }
// Prevent setting VHost to an IP address (IPv4 or IPv6)
const ipv4Pattern = /^(?:\d{1,3}\.){3}\d{1,3}$/;
const ipv6Pattern = /^([a-fA-F0-9:]+:+)+[a-fA-F0-9]+$/;
if (ipv4Pattern.test(newVHost) || ipv6Pattern.test(newVHost)) {
socket.write(`:${this.servername} 501 ${socket.nickname} :VHost cannot be an IP address\r\n`);
break;
}
dns.lookup(newVHost, (err, address) => { dns.lookup(newVHost, (err, address) => {
if (!err && address) { if (!err && address) {
socket.write(`:${this.servername} 501 ${socket.nickname} :VHost must not resolve to a real IP (resolved to: ${address})\r\n`); socket.write(`:${this.servername} 501 ${socket.nickname} :VHost must not resolve to a real IP (resolved to: ${address})\r\n`);