security_rust/protocol/
dns_rebinding.rs

1// Copyright (c) 2026 erik <erik@erik.xyz> — https://erik.xyz
2
3use regex::Regex;
4use std::sync::LazyLock;
5
6use crate::{AttackCategory, DetectionResult, Detector, Severity};
7
8static PATTERNS: LazyLock<Vec<Regex>> = LazyLock::new(|| {
9    vec![
10        Regex::new(r"(?i)Host:\s*127\.").unwrap(),
11        Regex::new(r"(?i)Host:\s*10\.").unwrap(),
12        Regex::new(r"(?i)Host:\s*192\.168\.").unwrap(),
13        Regex::new(r"(?i)Host:\s*172\.(1[6-9]|2\d|3[01])").unwrap(),
14        Regex::new(r"(?i)Host:\s*localhost").unwrap(),
15        Regex::new(r"(?i)Host:\s*\[::1\]").unwrap(),
16        Regex::new(r"(?i)Host:\s*0\.0\.0\.0").unwrap(),
17    ]
18});
19
20pub struct DnsRebindingDetector;
21
22impl Detector for DnsRebindingDetector {
23    fn name(&self) -> &'static str {
24        "dns_rebinding"
25    }
26
27    fn detect(&self, input: &str) -> Option<DetectionResult> {
28        for re in PATTERNS.iter() {
29            if let Some(m) = re.find(input) {
30                return Some(DetectionResult {
31                    attack_type: "dns_rebinding".into(),
32                    category: AttackCategory::Protocol,
33                    severity: Severity::High,
34                    matched_pattern: m.as_str().to_string(),
35                    offset: m.start(),
36                    message: "DNS rebinding attack detected".into(),
37                });
38            }
39        }
40        None
41    }
42}
security_rust/protocol/dns_rebinding.rs

security_rust/protocol/
dns_rebinding.rs
