bauerfeind.de security report

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

40risk

Moderate

Some surface to tighten, nothing urgent.

0Critical

0High

3Medium

8Low

1Info

Collected 11 hours ago65.5sfrom cache

Certificate Transparency23
DNS resolution24
Network ownership0
CDN / WAF detection0
Exposed ports & CVEs20
Registration
DNS posture5
Email authentication2
Certificate
Security headers1
Archived URLs
Analysis12

noteFound 23 hostnames; this runtime allows 50 outbound requests per scan, so the 21 most likely to matter were resolved.
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.

Without HSTS the browser will still try http:// first on a fresh visit, which is the window an on-path attacker uses.
What to do
Send `Strict-Transport-Security: max-age=31536000; includeSubDomains` once you are sure everything works over HTTPS.
asset: https://www.bauerfeind.de/de
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.bauerfeind.de/de
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.bauerfeind.de/de
Check it is not an open relay.
What to do
Restrict 25/tcp to a VPN, bastion, or allow-listed source range.
asset: 87.239.13.42:25
3.120.50.150 (therapie-app-preview.bauerfeind.de) reports lua-nginx-module 1.31.1.1, openresty 1.31.1.1. Publishing precise versions lets anyone match the host against a CVE feed without probing it, which is how targets get shortlisted for mass exploitation after a new advisory lands.
What to do
Suppress version tokens in server banners (for example `ServerTokens Prod` in Apache) and keep the packages current.
asset: 3.120.50.150
3.120.49.39 (curaflow-app-cms.bauerfeind.de) reports lua-nginx-module 1.31.1.1. Publishing precise versions lets anyone match the host against a CVE feed without probing it, which is how targets get shortlisted for mass exploitation after a new advisory lands.
What to do
Suppress version tokens in server banners (for example `ServerTokens Prod` in Apache) and keep the packages current.
asset: 3.120.49.39
staging.bauerfeind.de appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: staging.bauerfeind.de
therapie-app-preview.bauerfeind.de appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: therapie-app-preview.bauerfeind.de
therapie-app-staging.bauerfeind.de appears in Certificate Transparency logs. Names like this usually front staging, admin, or internal tooling, which tends to be patched later and monitored less than production.
What to do
Confirm this host is meant to be public. If not, put it behind SSO or an allow-list.
asset: therapie-app-staging.bauerfeind.de
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.bauerfeind.de/de
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: bauerfeind.de
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: bauerfeind.de

final https://www.bauerfeind.de/destatus 200time 2275msstack cloudflare · PleskLin · TYPO3 CMS

–http:// redirects to https://port 80 did not answer
✗Strict-Transport-Security
✗Content-Security-Policy
✗Clickjacking protection
✓X-Content-Type-Options
nosniff, nosniff
✗Referrer-Policy
–Permissions-Policyoptional
–security.txt publishedoptional — tells researchers where to report bugs

✓Receives mail via 2 servers
mxa-00611501.gslb.pphosted.com mxb-00611501.gslb.pphosted.com
!SPFends in ~all
v=spf1 ip4:3.120.50.150 ip6:2a05:d014:c73:3000:88dc:34e1:173f:879d include:spf.protection.outlook.com include:spf-00611501.pphosted.com include:spf-00611502.pphosted.com ~all
✓DMARCp=quarantine
v=DMARC1; p=quarantine; sp=quarantine; pct=100; rua=mailto:dmarc@bauerfeind.uriports.com; ruf=mailto:dmarc@bauerfeind.uriports.com; adkim=s; aspf=r; fo=1:d:s;
✓MTA-STSinbound mail must use TLS

!DNSSECanswers can be forged
–CAAany CA may issue
–IPv6 (AAAA)IPv4 only
✓5 nameservers
ns1.lemarit.de ns1.lemarit.net ns2.lemarit.de ns2.lemarit.net ns3.lemarit.de

Address	Ports	Edge	Network
87.239.13.42 mta-sts.bauerfeind.de +3	2580443	direct	—
3.120.50.150 therapie-app-preview.bauerfeind.de +18	80443	direct	—
161.71.107.32 view.business.bauerfeind.de +1	80443	direct	—
161.71.99.45 click.business.bauerfeind.de +3	80443	direct	—
160.8.160.252 cloud.business.bauerfeind.de +2	80443	direct	—
13.33.88.106 image.business.bauerfeind.de +2	80443	direct	—
13.33.88.100 image.business.bauerfeind.de +3	80443	direct	—
13.33.88.58 image.business.bauerfeind.de +2	80443	direct	—
13.33.88.7 image.business.bauerfeind.de +2	80443	direct	—
3.120.49.39 curaflow-app-cms.bauerfeind.de +1	80	direct	—

Archived URLs

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

bauerfeind.de security report

Moderate

Findings

Security headers

Email authentication

DNS

Hosts

Hostnames