Vulnerability Scan Result

IP address | 104.18.28.92 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
IP address | 104.18.29.92 |
Country | - |
AS number | AS13335 |
Net name | Cloudflare Inc |
2082/tcp | http | Cloudflare http proxy - |
2083/tcp | https | nginx - |
2086/tcp | http | Cloudflare http proxy - |
2087/tcp | https | nginx - |
Software / Version | Category |
---|---|
Alpine.js 3.9.1 | JavaScript frameworks |
cdnjs | CDN |
core-js 3.37.0 | JavaScript libraries |
Google Analytics GA4 | Analytics |
PWA | Miscellaneous |
Cookie Control | Cookie compliance |
Cloudflare | CDN |
Cloudflare Bot Management | Security |
Cookiebot 1 | Cookie compliance |
Google Tag Manager | Tag managers |
Lodash 4.17.21 | JavaScript libraries |
HSTS | Security |
Web Application Vulnerabilities
Evidence
URL | Evidence |
---|---|
https://www.deltafiber.nl/ | Response headers do not include the Referrer-Policy HTTP security header as well as the |
Vulnerability description
We noticed that the target application's server responses lack the Referrer-Policy
HTTP header, which controls how much referrer information the browser will send with each request originated from the current web application.
Risk description
The risk is that if a user visits a web page (e.g. "http://example.com/pricing/") and clicks on a link from that page going to e.g. "https://www.google.com", the browser will send to Google the full originating URL in the `Referer` header, assuming the Referrer-Policy header is not set. The originating URL could be considered sensitive information and it could be used for user tracking.
Recommendation
The Referrer-Policy header should be configured on the server side to avoid user tracking and inadvertent information leakage. The value `no-referrer` of this header instructs the browser to omit the Referer header entirely.
Classification
CWE | CWE-693 |
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
URL | Evidence |
---|---|
https://www.deltafiber.nl/ | Response does not include the HTTP Content-Security-Policy security header or meta tag |
Vulnerability description
We noticed that the target application lacks the Content-Security-Policy (CSP) header in its HTTP responses. The CSP header is a security measure that instructs web browsers to enforce specific security rules, effectively preventing the exploitation of Cross-Site Scripting (XSS) vulnerabilities.
Risk description
The risk is that if the target application is vulnerable to XSS, lack of this header makes it easily exploitable by attackers.
Recommendation
Configure the Content-Security-Header to be sent with each HTTP response in order to apply the specific policies needed by the application.
Classification
CWE | CWE-693 |
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Software / Version | Category |
---|---|
Alpine.js 3.9.1 | JavaScript frameworks |
cdnjs | CDN |
core-js 3.37.0 | JavaScript libraries |
Google Analytics GA4 | Analytics |
PWA | Miscellaneous |
Cookie Control | Cookie compliance |
Cloudflare | CDN |
Cloudflare Bot Management | Security |
Cookiebot 1 | Cookie compliance |
Google Tag Manager | Tag managers |
Lodash 4.17.21 | JavaScript libraries |
HSTS | Security |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
Risk description
The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.
Recommendation
We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.
Classification
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Vulnerability description
We found the robots.txt on the target server. This file instructs web crawlers what URLs and endpoints of the web application they can visit and crawl. Website administrators often misuse this file while attempting to hide some web pages from the users.
Risk description
There is no particular security risk in having a robots.txt file. However, it's important to note that adding endpoints in it should not be considered a security measure, as this file can be directly accessed and read by anyone.
Recommendation
We recommend you to manually review the entries from robots.txt and remove the ones which lead to sensitive locations in the website (ex. administration panels, configuration files, etc).
Classification
OWASP Top 10 - 2017 | A6 - Security Misconfiguration |
OWASP Top 10 - 2021 | A5 - Security Misconfiguration |
Evidence
Vulnerability description
Website is accessible.
Evidence
URL | Method | Parameters | Evidence |
---|---|---|---|
https://www.deltafiber.nl/samenleving/delta-fiber-fonds | GET | Headers: User-Agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36 Cookies: __cf_bm=Kg9gz9P6EnEwEzAB5BkGnFEDQK2SDBdDYRfuN_ZdNI0-1748535503-1.0.1.1-UOnpYALkWYs5fECm_5_LtXygTiF6zfXRYbH.0u.nnm_zT1GeQDWlbqr_pyaICc2c8WJJJ.v... | Email Address: fonds@deltafiber.nl |
Vulnerability description
We noticed that this web application exposes email addresses, which might be unintended. While not inherently a vulnerability, this information could be leveraged in social engineering or spam related activities.
Risk description
The risk is that exposed email addresses within the application could be accessed by unauthorized parties. This could lead to privacy violations, spam, phishing attacks, or other forms of misuse.
Recommendation
Compartmentalize the application to have 'safe' areas where trust boundaries can be unambiguously drawn. Do not allow email addresses to go outside of the trust boundary, and always be careful when interfacing with a compartment outside of the safe area.
Classification
CWE | CWE-200 |
OWASP Top 10 - 2017 | A6: Security Misconfiguration |
OWASP Top 10 - 2021 | A4: Insecure Design |
Evidence
URL | Method | Parameters | Evidence |
---|---|---|---|
https://www.deltafiber.nl/nieuws/delta-dikke-banden-races-in-teken-van-wk | GET | Headers: User-Agent=Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36 Cookies: __cf_bm=Kg9gz9P6EnEwEzAB5BkGnFEDQK2SDBdDYRfuN_ZdNI0-1748535503-1.0.1.1-UOnpYALkWYs5fECm_5_LtXygTiF6zfXRYbH.0u.nnm_zT1GeQDWlbqr_pyaICc2c8WJJJ.v... | Operating system paths found in the HTTP response: |
Vulnerability description
We found operating system paths returned in a HTTP response.
Risk description
The risk is that path disclosure may help an attacker learn more about the remote server's file system, thus increasing the effectiveness and precision of any future attacks.
Recommendation
Configure the web server to avoid leaking path information by using generic error messages that do not reveal any internal file paths. Make sure no server file is referred with its absolute path in the website code.
Classification
CWE | CWE-200 |
OWASP Top 10 - 2017 | |
OWASP Top 10 - 2021 |
Infrastructure Vulnerabilities
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
_dmarc.deltafiber.nl | TXT | Text record | "v=DMARC1; p=quarantine; fo=1; rua=mailto:rua@deltafiber.nl; ruf=mailto:ruf@deltafiber.nl" |
Vulnerability description
We found that the target uses p=quarantine in the DMARC policy. When a DMARC policy is set to p=quarantine, emails that fail DMARC validation are delivered but placed in the recipient’s spam or junk folder. Although it offers some protection, this policy is less strict than p=reject, which blocks such emails entirely.
Risk description
While emails failing DMARC validation are sent to the spam folder, users may still retrieve them from there, leading to a higher risk of phishing and spoofing attacks succeeding. Moreover, less strict enforcement may allow more fraudulent emails to reach user inboxes if misclassified.
Recommendation
We recommend considering moving to a stricter policy, such as p=reject, where emails that fail DMARC validation are completely rejected rather than delivered to spam folders. This reduces the risk of users interacting with potentially malicious emails.
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
_dmarc.deltafiber.nl | TXT | Text record | "v=DMARC1; p=quarantine; fo=1; rua=mailto:rua@deltafiber.nl; ruf=mailto:ruf@deltafiber.nl" |
Vulnerability description
We found that the DMARC record for the domain is not configured with sp policy, meaning that no policy is enforced for subdomains. When a DMARC record does not include a subdomain policy (sp directive), subdomains are not explicitly covered by the main domain's DMARC policy. This means that emails sent from subdomains (e.g., sub.example.com) may not be subject to the same DMARC enforcement as the main domain (example.com). As a result, attackers could potentially spoof emails from subdomains without being blocked or flagged, even if the main domain has a strict DMARC policy.
Risk description
Without a subdomain policy (sp directive) in the DMARC record, subdomains are not protected by the same DMARC enforcement as the main domain, leaving them vulnerable to spoofing attacks. This inconsistency can be exploited by attackers to send phishing emails from subdomains, undermining the organization’s overall email security.
Recommendation
To mitigate the risk, we recommend configuring the DMARC record with a subdomain policy by adding the sp=reject or sp=quarantine directive. This will extend DMARC enforcement to all subdomains, preventing spoofing attempts and maintaining consistent security across both the main domain and its subdomains.
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
deltafiber.nl | A | IPv4 address | 104.18.28.92 |
deltafiber.nl | A | IPv4 address | 104.18.29.92 |
deltafiber.nl | NS | Name server | ns1.dfn.nl |
deltafiber.nl | NS | Name server | ns2.dfn.nl |
deltafiber.nl | MX | Mail server | 0 deltafiber-nl.mail.protection.outlook.com |
deltafiber.nl | SOA | Start of Authority | ns1.dfn.nl. hostmaster.dfn.nl. 2025052903 10800 3600 604800 3600 |
deltafiber.nl | AAAA | IPv6 address | 2606:4700::6812:1c5c |
deltafiber.nl | AAAA | IPv6 address | 2606:4700::6812:1d5c |
deltafiber.nl | TXT | Text record | "MS=ms25397969" |
deltafiber.nl | TXT | Text record | "53114c68-a484-467e-ae06-f8310dd06191" |
deltafiber.nl | TXT | Text record | "apple-domain-verification=N8z6rexTOMU7Zqsf" |
deltafiber.nl | TXT | Text record | "docusign=8a968db7-89f3-416c-b106-86939ecc5762" |
deltafiber.nl | TXT | Text record | "canva-site-verification=nWJ942DRQMrwlgna62JJOQ" |
deltafiber.nl | TXT | Text record | "google-gws-recovery-domain-verification=41664690" |
deltafiber.nl | TXT | Text record | "autodesk-domain-verification=4wWGSmVwPYipksyEEUem" |
deltafiber.nl | TXT | Text record | "miro-verification=fb118ef3a86770e4ed3da3761c06ecdfc4e40cce" |
deltafiber.nl | TXT | Text record | "facebook-domain-verification=ckawucvlbo9jrb2f2kqbctox5hekfy" |
deltafiber.nl | TXT | Text record | "google-site-verification=PiyzWaP-y-82H7UBIxj9MthFxgs15EYtsnJghH_8jj4" |
deltafiber.nl | TXT | Text record | "google-site-verification=WewwCIFEoXs_EYHe23_YThfeey9I6SZqPYhI7Pp51A4" |
deltafiber.nl | SPF | Sender Policy Framework | "v=spf1 include:spf.protection.outlook.com ip4:87.233.41.63 ip4:212.115.194.26 ip4:62.45.45.125 ip4:62.45.45.126 ip4:62.45.70.132 ip4:62.45.70.132 ip4:20.61.145.119 a:relay.smartlockr.eu include:_spf.mijnwefact.nl include:servers.mcsv.net include:spf.afas." "online include:spf.mailjet.com -all" |
_dmarc.deltafiber.nl | TXT | Text record | "v=DMARC1; p=quarantine; fo=1; rua=mailto:rua@deltafiber.nl; ruf=mailto:ruf@deltafiber.nl" |
Risk description
An initial step for an attacker aiming to learn about an organization involves conducting searches on its domain names to uncover DNS records associated with the organization. This strategy aims to amass comprehensive insights into the target domain, enabling the attacker to outline the organization's external digital landscape. This gathered intelligence may subsequently serve as a foundation for launching attacks, including those based on social engineering techniques. DNS records pointing to services or servers that are no longer in use can provide an attacker with an easy entry point into the network.
Recommendation
We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.
Evidence
Operating System | Accuracy |
---|---|
FreeBSD 11.1-STABLE | 91% |
Vulnerability description
OS Detection
Evidence
We managed to detect the redirect using the following Request / Response chain.
Recommendation
Vulnerability checks are skipped for ports that redirect to another port. We recommend scanning the redirected port directly.
Evidence
We managed to detect the redirect using the following Request / Response chain.
Recommendation
Vulnerability checks are skipped for ports that redirect to another port. We recommend scanning the redirected port directly.
Evidence
Domain Queried | DNS Record Type | Description | Value |
---|---|---|---|
deltafiber.nl | SPF | Sender Policy Framework | "v=spf1 include:spf.protection.outlook.com ip4:87.233.41.63 ip4:212.115.194.26 ip4:62.45.45.125 ip4:62.45.45.126 ip4:62.45.70.132 ip4:62.45.70.132 ip4:20.61.145.119 a:relay.smartlockr.eu include:_spf.mijnwefact.nl include:servers.mcsv.net include:spf.afas." "online include:spf.mailjet.com -all" |
Evidence
DKIM selector | Key type | Key size | Value |
---|---|---|---|
cm | rsa | 1296 | "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDjgkP/jeXNSUU/qxomHxa5YOfEWNAId1c+ZGnnLoSJ1dSFUmF8lGVuQwY3oMfC1KJL5NrIB9M8Xj/Y7IRv4ou2lN95IKues8QR4YqvLGVG04YagvLeOCPtA40ffAjgGnz4hieGT67OGkYPqHBSm379oqxxelTVMbZgNjJqcd4OkwIDAQAB" |
k2 | rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA0b90ObWaLDc+i9MtTNmGeWO009hr20fIxhGg6XBT2kjZ1DTThopSe1nAndsupmcBwlQ5Q6LJ+ZAxLcujnPIxM0ZBLmgpkv8u6RfY4eFP8OLvdAW3oSu" "B0DyLDigQX4Sj8wBO4YIdQH6AAmBeOsidsKAFNFUCpc3vCxtBDR12U+cBg724l3sBkMQ8evnz6idnqxq9QAVYh8k4kJ+RP+6cqTdy7LjIm8xY/bQNpQIpGUAuDo2DjLcCDun9DAI4Q/3z+Q0o9QuQIDAQAB;" |
k3 | rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsYGiMSn7fsUqSvfSX40x9R1OlRtbNiCY80lHRIlcKx3XDIR7257aUx+q9CSIARdfTL6KCuLGNFx5g9TgVr6png4ajcieSQGtOehBgxnkDN8aAA5TX0FmFrcefJU0JoxLOF09EKgXxhSSHCk/ekVb0PXSboHXoZ9+EI404F1qhcwXXIgHXTaUthHTut2P6BBZh" "IXIgvDe/w49GchR7MRJqjNb7neEBbYHbgWuBTvvHCg7Gy6m6n9krYK+ROWq3dVvXy9plAGK3ygM+HtjIiMt7arRGMOF0WgDTz7YdN9BGpt6BvXxLnjiQcgS5T9n+cIyPZgiWzDMXNlaEEdKTEKxrwIDAQAB;" |
mailjet | rsa | 1296 | "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCTtsSMgTq+mOzLtYT+Dfa9x2f0VuvwnGNATF7hzAqmYe/aOfx6MmkleFtIEyUDk4W4T1XHxZqcNgbFlspo5AnVgZUiDP607tUBW+GMSFb8SSQOdF5n5XhrjWsJDt+PeoMSGXkpdQHWC6VQgpei25o/QIBU2TByqNxOITfimDjLZQIDAQAB" |
selector1 | rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxEeiAACMRdvyIOs1LjcfXPhWbdnoTLWubLZv9VSBg8QdkkR/07CtUMsyGWweSB7lXqdxXAjQmOV8HzUs9pYNCLumlH4j1D+vFqKE9hc3aLMoXsqnUyVQ9truwVXBPLY/rEAjUM+q1nvTg8gaGgA1/6XSneNz/TK08QKDyarnjJUYH/nOhU0gkokRgRATXQxmT" "BpIW8iVYPnCi0zAuwtEkh+1wSxNHNL52aJ3so3taWqttctP5nMeH3+bXttsM927/ywZz7Y5Sz+OHkE2HY7kRtgZYDZyOvbe5r1JsUPDl62+iWRNhLLHF4b14nnTBxmGj+Jj4ZKWLD3YcKNaACh9cQIDAQAB;" |
selector2 | rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApB+wkCSfPqe9YHrmrhl6DIoBBogr0a5FWTnScYXplVnoAobNanl8ldeM0YlDkAW7UjlfNx6ljPwNOj7e1CJQL31bY+2MRXgOHLpm9nOK4YbmcOf1Ax3BEH9i+MJvPm244Tf5ThcTAjpyewWKttmOgDf6X5CtqJs/C2XWJ/Z2xfmIyhbgZ8HgZ9eXhMIO+LJCZ" "RGQjwfuE1kgYwSF1oxmo5tcvWymUJ7Vo77TPVxj04MOXeBsj+qrzwuz1NSEoMzgQyMs2TX8wz8TrLW/O21h5tnJaWCG/DSywewzvSUeOMTIpXlM8HaZjuPJNlppGeT3lm5FnoiyOMf1y3/B4g5iCQIDAQAB;" |
Evidence
Software / Version | Category |
---|---|
Alpine.js | JavaScript frameworks |
Google Tag Manager | Tag managers |
Google Analytics GA4 | Analytics |
cdnjs | CDN |
Cookiebot | Cookie compliance |
Cloudflare Browser Insights | Analytics, RUM |
Cloudflare Bot Management | Security |
HSTS | Security |
Cloudflare | CDN |
PWA | Miscellaneous |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
Risk description
The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.
Recommendation
We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.
Evidence
Software / Version | Category |
---|---|
Alpine.js | JavaScript frameworks |
Google Tag Manager | Tag managers |
Google Analytics GA4 | Analytics |
cdnjs | CDN |
Cookiebot | Cookie compliance |
Cloudflare Browser Insights | Analytics, RUM |
Cloudflare Bot Management | Security |
HSTS | Security |
Cloudflare | CDN |
Vulnerability description
We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.
Risk description
The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.
Recommendation
We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.