illust-box.jp security report

Certificate, security headers, email authentication, DNS, registration, and exposed hosts — from public sources.

55risk

Elevated

Several issues worth triaging this week.

0Critical

1High

4Medium

4Low

2Info

Collected 12 hours ago9.6sfrom cache

Certificate Transparency
DNS resolution1
Network ownership0
CDN / WAF detection0
Exposed ports & CVEs8
Registration
DNS posture4
Email authentication1
Certificate
Security headers1
Archived URLs
Analysis11

noteCertificate Transparency did not complete (HTTP 502). Results below are partial.
noteCertificate inspection is unavailable in this runtime.
noteNetwork ownership lookup is unavailable in this runtime; ASN and org are omitted.
noteCDN/WAF detection is unavailable in this runtime.
noteNo registration data: RDAP has no record at this level.

SPF and DKIM alone do not protect the From: address a person sees. Without DMARC, a spoofed message can pass SPF for some other domain and still display yours.
What to do
Publish `_dmarc.illust-box.jp TXT "v=DMARC1; p=none; rua=mailto:dmarc@illust-box.jp"`, review the reports, then move to p=quarantine and p=reject.
asset: illust-box.jp
CSP is the main defence that limits what an injected script can do. Without it, any XSS bug is fully exploitable.
What to do
Start with a report-only policy, tighten it against the reports, then enforce.
asset: https://www.illust-box.jp/
No X-Frame-Options or CSP frame-ancestors directive, so another site can load this page invisibly inside its own and trick users into clicking.
What to do
Send `X-Frame-Options: DENY` or `Content-Security-Policy: frame-ancestors ’none’`.
asset: https://www.illust-box.jp/
The browser will also send this cookie over plain http://, where it can be captured.
What to do
Add `Secure` to the cookie.
asset: https://www.illust-box.jp/
The browser will also send this cookie over plain http://, where it can be captured.
What to do
Add `Secure` to the cookie.
asset: https://www.illust-box.jp/
Check it is not an open relay.
What to do
Restrict 25/tcp to a VPN, bastion, or allow-listed source range.
asset: 210.129.190.215:25
Lets browsers guess content types, which turns some upload and text endpoints into script injection points.
What to do
Send `X-Content-Type-Options: nosniff` on every response.
asset: https://www.illust-box.jp/
Full URLs — including any tokens or IDs in them — are sent to every third party the page links to.
What to do
Send `Referrer-Policy: strict-origin-when-cross-origin`.
asset: https://www.illust-box.jp/
Answers for this domain are not signed, so a resolver cannot tell a forged response from a real one.
What to do
Enable DNSSEC at your DNS host and publish the DS record at the registrar.
asset: illust-box.jp
Mail to this domain can be downgraded to plaintext by an on-path attacker, because senders have no way to know TLS is required.
What to do
Publish an MTA-STS policy (a TXT record plus a small HTTPS-hosted file).
asset: illust-box.jp
Any public certificate authority may issue certificates for this domain. CAA lets you name the ones allowed to.
What to do
Add a CAA record naming your CA, e.g. `0 issue "letsencrypt.org"`.
asset: illust-box.jp

final https://www.illust-box.jp/status 200time 1434msstack cloudflare

✓http:// redirects to https://
✓Strict-Transport-Security
max-age=15768000; includeSubDomains
✗Content-Security-Policy
✗Clickjacking protection
✗X-Content-Type-Options
✗Referrer-Policy
–Permissions-Policyoptional
–security.txt publishedoptional — tells researchers where to report bugs

✗Cookie CFID
no Secure · HttpOnly · no SameSite
✗Cookie CFTOKEN
no Secure · HttpOnly · no SameSite

✓Receives mail via 1 server
mail.illust-box.jp
!SPFends in ~all
v=spf1 ip4:210.129.190.198 ip4:210.129.190.215 a:mail.illust-box.jp ~all
✗DMARC
no record
!MTA-STSinbound mail can be downgraded to plaintext

!DNSSECanswers can be forged
–CAAany CA may issue
–IPv6 (AAAA)IPv4 only
✓4 nameservers
01.dnsv.jp 02.dnsv.jp 03.dnsv.jp 04.dnsv.jp

Address	Ports	CVEs	Edge	Network
210.129.190.215 illust-box.jp +1	2580110143443587993995	0	direct	—

Archived URLs

Endpoints the Wayback Machine has kept — config files, backups, scripts. Slow to fetch, so it is here on request.

illust-box.jp security report

Elevated

Findings

Security headers

Email authentication

DNS

Hosts

Hostnames