java-topology/tools/scans/nginx.sh
russell@unturf.com db29a08762 undefect. CWE-407 — 92 sites, 42 ecosystems
B&W print-friendly diagrams + tinkerpop-0001 + wave-3 proof sections.
Squash of 94 local commits onto remote master.
2026-03-26 19:48:18 -04:00

20 lines
959 B
Bash
Executable file

#!/usr/bin/env bash
# CWE-407 scan — nginx (resolver CNAME chains, upstream graph)
set -euo pipefail
echo "# scan=nginx host=$(hostname) date=$(date -u +%Y-%m-%dT%H:%M:%SZ)"
cd /tmp && git clone --depth 1 https://github.com/nginx/nginx nginx 2>&1 | tail -1
GRAPH_KW="cycle\b|reachab\|topolog\|cname.*chain\|chain.*cname\|upstream.*graph\|dependency\|dfs\b\|visited"
C_MEM='ngx_array_push.*==\|for.*elts\|ngx_str_set.*find\|linear\|ngx_list_push.*==\b'
echo "# roots: /tmp/nginx/src"
find /tmp/nginx/src -name "*.c" -o -name "*.h" | sort | while IFS= read -r f; do
gl=$(grep -inE "$GRAPH_KW" "$f" 2>/dev/null | cut -d: -f1 | head -5 || true)
[ -z "$gl" ] && continue
while IFS= read -r ln; do
s=$(( ln > 20 ? ln - 20 : 1 )); e=$(( ln + 20 ))
hit=$(sed -n "${s},${e}p" "$f" 2>/dev/null | grep -iE "$C_MEM" | head -1 | sed 's/^\s*//' || true)
[ -n "$hit" ] && echo "CANDIDATE ${f}:${ln} ${hit}"
done <<< "$gl"
done
echo "# scan complete"