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🛡️ Sentinel: [MEDIUM] Fix overly permissive directory permissions #13

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🛡️ Sentinel: [MEDIUM] Fix overly permissive directory permissions #13

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4 changes: 4 additions & 0 deletions .jules/sentinel.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
## 2026-10-10 - Update SaveRequest Directory Permissions
**Vulnerability:** Saved request directories had overly permissive permissions (`0o755`), potentially allowing local users to view saved files including sensitive payloads/headers.
**Learning:** The application captures arbitrary incoming HTTP requests and allows users to export/save them locally. While `SaveRequest` attempts to redact sensitive headers, other non-redacted data might be sensitive. The directory `SaveDir` where requests are saved was created with `0o755`.
**Prevention:** Create directories containing sensitive user-data/traffic with `0o700` permissions so only the owner has access.
2 changes: 1 addition & 1 deletion internal/export/export.go
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Expand Up @@ -89,7 +89,7 @@ func SaveRequest(dir string, ev events.Event, redact bool) (string, error) {
if dir == "" {
dir = "."
}
if err := os.MkdirAll(dir, 0o755); err != nil {
if err := os.MkdirAll(dir, 0o700); err != nil {
return "", err
}
method := cleanName(ev.Request.Method)
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