Vulnerability Scan Result
| Title: | KINGLGO44 | No Mercy Zone ~ Tap Fast, Win Hard |
| Description: | KINGLGO44 aktif buat yang nggak suka pelan. Tap sekali, semua langsung terbuka. Aksi cepat, hasil nyata. Saatnya main keras dan menang. |
| ip_address | 104.21.16.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
| ip_address | 104.21.96.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
| ip_address | 104.21.64.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
| ip_address | 104.21.112.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
| ip_address | 104.21.80.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
| ip_address | 104.21.32.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
| ip_address | 104.21.48.1 |
| country | - |
| network_name | Cloudflare Inc |
| asn | AS13335 |
80/tcp | http | Cloudflare http proxy - |
443/tcp | https | cloudflare - |
2082/tcp | http | Cloudflare http proxy - |
2083/tcp | https | nginx - |
2086/tcp | http | Cloudflare http proxy - |
2087/tcp | https | nginx - |
8080/tcp | http | Cloudflare http proxy - |
8443/tcp | http | cloudflare - |
| Software / Version | Category |
|---|---|
| web-vitals | JavaScript libraries, RUM |
| jQuery Migrate 3.4.1 | JavaScript libraries |
| HTTP/3 | Miscellaneous |
| jQuery 3.7.1 | JavaScript libraries |
| MySQL | Databases |
| Open Graph | Miscellaneous |
| PHP | Programming languages |
| WordPress | CMS, Blogs |
| Cloudflare | CDN |
| Lodash 1.13.7 | JavaScript libraries |
| Yoast SEO 25.5 | SEO, WordPress plugins |
Web Application Vulnerabilities
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).
Evidence
| URL | Evidence |
|---|---|
| https://kinglgo44.net/ | Response headers do not include the HTTP Strict-Transport-Security header |
Vulnerability description
We noticed that the target application lacks the HTTP Strict-Transport-Security header in its responses. This security header is crucial as it instructs browsers to only establish secure (HTTPS) connections with the web server and reject any HTTP connections.
Risk description
The risk is that lack of this header permits an attacker to force a victim user to initiate a clear-text HTTP connection to the server, thus opening the possibility to eavesdrop on the network traffic and extract sensitive information (e.g. session cookies).
Recommendation
The Strict-Transport-Security HTTP header should be sent with each HTTPS response. The syntax is as follows: `Strict-Transport-Security: max-age=<seconds>[; includeSubDomains]` The parameter `max-age` gives the time frame for requirement of HTTPS in seconds and should be chosen quite high, e.g. several months. A value below 7776000 is considered as too low by this scanner check. The flag `includeSubDomains` defines that the policy applies also for sub domains of the sender of the response.
Classification
| CWE | CWE-693 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| Software / Version | Category |
|---|---|
| web-vitals | JavaScript libraries, RUM |
| jQuery Migrate 3.4.1 | JavaScript libraries |
| HTTP/3 | Miscellaneous |
| jQuery 3.7.1 | JavaScript libraries |
| MySQL | Databases |
| Open Graph | Miscellaneous |
| PHP | Programming languages |
| WordPress | CMS, Blogs |
| Cloudflare | CDN |
| Lodash 1.13.7 | JavaScript libraries |
| Yoast SEO 25.5 | SEO, WordPress plugins |
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
| URL | Evidence |
|---|---|
| https://kinglgo44.net/ | 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 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Method | Parameters | Evidence |
|---|---|---|---|
| https://kinglgo44.net/amp/ | 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 |
|
Vulnerability description
We noticed that the target application is serving mixed content. This occurs when initial HTML is loaded over a secure HTTPS connection, but other resources (such as images, videos, stylesheets, scripts) are loaded over an insecure HTTP connection. This is called mixed content because both HTTP and HTTPS content are being loaded to display the same page, and the initial request was secure over HTTPS.
Risk description
The risk is that the insecurely loaded resources (HTTP) on an otherwise secure page (HTTPS) can be intercepted or manipulated by attackers, potentially leading to eavesdropping or content tampering.
Recommendation
Ensure that all external resources the page references are loaded using HTTPS.
Classification
| CWE | CWE-311 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Evidence |
|---|---|
| https://kinglgo44.net/ | 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 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Method | Parameters | Evidence |
|---|---|---|---|
| https://kinglgo44.net/wp-json/wp/v2 | 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 | Possible API endpoint found at |
Vulnerability description
We found API endpoints while crawling the given web application.
Risk description
These endpoints may represent an attack surface for malicious actors interested in API-specific vulnerabilities.
Recommendation
Use the API Scanner to perform a more thorough vulnerability check for these endpoints, if an API specification is present.
Evidence
Vulnerability description
Website is accessible.
Vulnerability description
We have noticed that the server is missing the security.txt file, which is considered a good practice for web security. It provides a standardized way for security researchers and the public to report security vulnerabilities or concerns by outlining the preferred method of contact and reporting procedures.
Risk description
There is no particular risk in not having a security.txt file for your server. However, this file is important because it offers a designated channel for reporting vulnerabilities and security issues.
Recommendation
We recommend you to implement the security.txt file according to the standard, in order to allow researchers or users report any security issues they find, improving the defensive mechanisms of your server.
Infrastructure Vulnerabilities
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| _dmarc.kinglgo44.net | TXT | Text record | "v=DMARC1; p=none;" |
Vulnerability description
We found that the target uses p=none in the DMARC policy. The DMARC policy set to p=none means that the domain owner is not taking any action on emails that fail DMARC validation. This configuration effectively disables enforcement, allowing potentially spoofed or fraudulent emails to be delivered without any additional scrutiny.
Risk description
Emails that fail DMARC checks are still delivered to recipients. This leaves the domain highly vulnerable to email spoofing and phishing attacks, as malicious actors can impersonate the domain without facing any consequences from DMARC enforcement.
Recommendation
We recommend changing the DMARC policy to p=quarantine or, ideally, p=reject to actively block or quarantine emails that fail DMARC validation. This will enhance the security of your domain against spoofing and phishing attacks by ensuring that only legitimate emails are delivered.
Evidence
We found insecure DNS cookie usage on the following nameservers: chance.ns.cloudflare.com, teresa.ns.cloudflare.com
Vulnerability description
We found that the server does not implement DNS Cookies or uses them insecurely. DNS Cookies help prevent DNS-based attacks, such as spoofing and amplification attacks.
Risk description
The risk exists because without DNS Cookies, the server is vulnerable to DNS spoofing and amplification attacks. Attackers can manipulate responses or use the server in distributed denial-of-service (DDoS) attacks, compromising network availability and security.
Recommendation
We recommend enabling DNS Cookies to prevent spoofed DNS responses. Ensure proper cookie validation is implemented to mitigate DNS amplification attacks. Regularly update DNS servers to support the latest DNS security features.
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| _dmarc.kinglgo44.net | TXT | Text record | "v=DMARC1; p=none;" |
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
| DKIM selector | Key type | Key size | Value |
|---|---|---|---|
| default | rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7UcLy//jCCiJ75odKlOfP3wDxfUig9xzzolPw8aofURbgbmwpetUvsDWNyiSqE53pKRjGnOqPZsC+uTtDh37LEQZPrgnHnKr7BOmd4Xzf9Q+NFE6wtlVs2J0uVgY0S8ww3Z3GcsfSZ0/mLBn2iePNVsFnaY9kP6XsEW8gV2Z++GPQeabsaHG0lZdzQqTKewc1" "xgCA9+egyRjEVIfv3tnk6eNOWjdKWrql8oIpcjMLdb/hUZwJxXiXZGhRNENZsIcpB7EcvthnMmWkYOOft0SGybQYRz2AHT3vvpPf+HI25hN0/Tt87nlg99KJ7SktnaZfq6DcCcjtF0dnYbNgxWKyQIDAQAB;" |
Vulnerability description
We found that the DKIM record uses common selectors. The use of common DKIM selectors such as default, test, dkim, or mail may indicate a lack of proper customization or key management. Attackers often target domains using such selectors because they suggest that the domain is relying on default configurations, which could be less secure and easier to exploit. This can increase the risk of DKIM key exposure or misuse.
Risk description
Using a common DKIM selector makes it easier for attackers to predict and exploit email authentication weaknesses. Attackers may attempt to find corresponding DKIM keys or improperly managed records associated with common selectors. If a common selector is coupled with a weak key length or poor key management practices, it significantly increases the likelihood of email spoofing and phishing attacks.
Recommendation
We recommend using unique, customized selectors for each DKIM key to make it more difficult for attackers to predict and target the domain's DKIM records. Regularly rotate selectors and associated keys to further strengthen the security of your domain's email authentication infrastructure.
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| _dmarc.kinglgo44.net | TXT | Text record | "v=DMARC1; p=none;" |
Vulnerability description
We found that the DMARC record for the domain is not configured with ruf tag. A missing ruf (forensic reporting) tag in a DMARC record indicates that the domain owner has not enabled the collection of detailed failure reports. Forensic reports provide valuable insights into specific instances where emails fail DMARC authentication. Without the ruf tag, the domain administrator loses the ability to receive and analyze these reports, making it difficult to investigate individual email failures or identify targeted phishing or spoofing attacks that may be exploiting weaknesses in the email authentication setup.
Risk description
Without forensic reports (ruf), domain owners have limited visibility into the specifics of failed DMARC validation. This means potential malicious activity, such as email spoofing or phishing attempts, might go unnoticed until they result in more significant security breaches or reputational damage. Forensic reports allow for quick response to email abuses by providing detailed information about the failure, including the header information of the emails involved. The absence of this data hampers an organization's ability to identify and mitigate threats targeting its domain, increasing the risk of ongoing spoofing and fraud.
Recommendation
We recommend configuring the ruf tag in the DMARC record. This tag specifies where forensic reports should be sent, providing the domain owner with detailed data on DMARC validation failures. Forensic reports allow administrators to analyze why certain emails failed authentication, making it easier to fine-tune DMARC policies or address potential vulnerabilities. Ensure that the ruf email address belongs to a secure and trusted location capable of handling sensitive email data.
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| kinglgo44.net | SPF | Sender Policy Framework | "v=spf1 +a +mx +ip4:66.29.153.34 include:spf.web-hosting.com ~all" |
Vulnerability description
We found that the Sender Policy Framework (SPF) record for the domain is configured with ~all (soft fail), which indicates that emails from unauthorized IP addresses are not explicitly denied. Instead, the recipient mail server is instructed to treat these messages with suspicion but may still accept them. This configuration may not provide enough protection against email spoofing and unauthorized email delivery, leaving the domain more vulnerable to impersonation attempts.
Risk description
The ~all directive in an SPF record allows unauthorized emails to pass through some email servers, even though they fail SPF verification. While such emails may be marked as suspicious or placed into a spam folder, not all mail servers handle soft fail conditions consistently. This creates a risk that malicious actors can spoof the domain to send phishing emails or other fraudulent communications, potentially causing damage to the organization's reputation and leading to successful social engineering attacks.
Recommendation
We recommend changing the SPF record's ~all (soft fail) directive to -all (hard fail). The -all setting tells recipient mail servers to reject emails from any IP addresses not listed in the SPF record, providing stronger protection against email spoofing. Ensure that all legitimate IP addresses and services that send emails on behalf of your domain are properly included in the SPF record before implementing this change.
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| _dmarc.kinglgo44.net | TXT | Text record | "v=DMARC1; p=none;" |
Vulnerability description
We found that the DMARC record for the domain is not configured with rua tag. When a DMARC record is not configured with the rua (Reporting URI for Aggregate Reports) tag, the domain owner misses out on critical feedback regarding the domain's email authentication performance. Aggregate reports are essential for monitoring how a domain's DMARC policy is applied across various mail servers and whether legitimate or malicious emails are being sent on behalf of the domain. Without this reporting, domain administrators have no visibility into how their DMARC policy is being enforced, which hinders their ability to detect potential spoofing or authentication issues.
Risk description
The absence of rua reporting creates a significant blind spot in the domain's email security posture. Without aggregate reports, domain administrators cannot track DMARC compliance across email sent from their domain, leaving them unaware of potential misconfigurations or unauthorized use of their domain for malicious purposes, such as phishing or spoofing. This lack of visibility increases the risk of undetected spoofing attempts, which could damage the domain's reputation and lead to financial, operational, or reputational harm. Moreover, legitimate email issues, such as misaligned SPF or DKIM configurations, may also go unnoticed, affecting email deliverability.
Recommendation
We recommend configuring the rua tag in the DMARC record to receive aggregate reports from mail servers. This tag should point to a reliable email address or monitoring service capable of handling DMARC aggregate reports, such as rua=mailto:dmarc-reports@example.com. These reports provide valuable insights into how email from the domain is being treated by receiving mail servers, highlighting potential authentication issues and attempts to spoof the domain. Regularly reviewing these reports will help ensure the DMARC policy is properly enforced and that any email authentication failures are addressed in a timely manner.
Evidence
| Software / Version | Category |
|---|---|
| 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.
Evidence
| Software / Version | Category |
|---|---|
| WordPress | CMS, Blogs |
| MySQL | Databases |
| PHP | Programming languages |
| React | JavaScript frameworks |
| AMP | JavaScript frameworks |
| Yoast SEO 25.5 | SEO, WordPress plugins |
| Underscore.js 1.13.7 | JavaScript libraries |
| jQuery | JavaScript libraries |
| Alibaba Cloud CDN | CDN |
| web-vitals | JavaScript libraries, RUM |
| Cloudflare | CDN |
| HTTP/3 | Miscellaneous |
| Open Graph | 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 |
|---|---|
| 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.
Evidence
| Software / Version | Category |
|---|---|
| cPanel | Hosting panels |
| Cloudflare | CDN |
| HTTP/3 | 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
| Operating System | Accuracy |
|---|---|
| FreeBSD 11.1-STABLE | 91% |
Vulnerability description
OS Detection
Evidence
| DKIM selector | Key type | Key size | Value |
|---|---|---|---|
| default | rsa | 1422 | "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7UcLy//jCCiJ75odKlOfP3wDxfUig9xzzolPw8aofURbgbmwpetUvsDWNyiSqE53pKRjGnOqPZsC+uTtDh37LEQZPrgnHnKr7BOmd4Xzf9Q+NFE6wtlVs2J0uVgY0S8ww3Z3GcsfSZ0/mLBn2iePNVsFnaY9kP6XsEW8gV2Z++GPQeabsaHG0lZdzQqTKewc1" "xgCA9+egyRjEVIfv3tnk6eNOWjdKWrql8oIpcjMLdb/hUZwJxXiXZGhRNENZsIcpB7EcvthnMmWkYOOft0SGybQYRz2AHT3vvpPf+HI25hN0/Tt87nlg99KJ7SktnaZfq6DcCcjtF0dnYbNgxWKyQIDAQAB;" |
Evidence
| Software / Version | Category |
|---|---|
| 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.
Evidence
| Software / Version | Category |
|---|---|
| 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.
Evidence
| Domain Queried | DNS Record Type | Description | Value |
|---|---|---|---|
| kinglgo44.net | A | IPv4 address | 104.21.16.1 |
| kinglgo44.net | A | IPv4 address | 104.21.32.1 |
| kinglgo44.net | A | IPv4 address | 104.21.64.1 |
| kinglgo44.net | A | IPv4 address | 104.21.112.1 |
| kinglgo44.net | A | IPv4 address | 104.21.80.1 |
| kinglgo44.net | A | IPv4 address | 104.21.96.1 |
| kinglgo44.net | A | IPv4 address | 104.21.48.1 |
| kinglgo44.net | NS | Name server | chance.ns.cloudflare.com |
| kinglgo44.net | NS | Name server | teresa.ns.cloudflare.com |
| kinglgo44.net | MX | Mail server | 10 mx2-hosting.jellyfish.systems |
| kinglgo44.net | MX | Mail server | 20 mx3-hosting.jellyfish.systems |
| kinglgo44.net | MX | Mail server | 5 mx1-hosting.jellyfish.systems |
| kinglgo44.net | SOA | Start of Authority | chance.ns.cloudflare.com. dns.cloudflare.com. 2377807514 10000 2400 604800 1800 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:1001 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:3001 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:5001 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:4001 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:2001 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:7001 |
| kinglgo44.net | AAAA | IPv6 address | 2606:4700:3030::6815:6001 |
| kinglgo44.net | SPF | Sender Policy Framework | "v=spf1 +a +mx +ip4:66.29.153.34 include:spf.web-hosting.com ~all" |
| _dmarc.kinglgo44.net | TXT | Text record | "v=DMARC1; p=none;" |
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.