Vulnerability Scan Result
| Title: | No title found |
| Description: | No description found |
| ip_address | 8.218.50.207 |
| country | HK  |
| network_name | Alibaba |
| asn | US |
22/tcp | ssh | OpenSSH 8.2p1 Ubuntu 4ubuntu0.11 |
80/tcp | http | nginx 1.18.0 |
7000/tcp | afs3-fileserver | - - |
| Software / Version | Category |
|---|---|
| Nginx 1.18.0 | Web servers, Reverse proxies |
| Ubuntu | Operating systems |
Web Application Vulnerabilities
Evidence
| CVE | CVSS | EPSS Score | EPSS Percentile | Summary |
|---|---|---|---|---|
| CVE-2021-23017 | 7.7 | 0.73166 | 0.98816 | A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact. |
| CVE-2023-44487 | 7.5 | 0.94394 | 0.99974 | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. |
| CVE-2021-3618 | 7.4 | 0.00615 | 0.70094 | ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer. |
| CVE-2022-41742 | 7.1 | 0.00095 | 0.26205 | NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted audio or video file. The issue affects only NGINX products that are built with the module ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module. |
| CVE-2022-41741 | 7 | 0.00828 | 0.7468 | NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its termination or potential other impact using a specially crafted audio or video file. The issue affects only NGINX products that are built with the ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module. |
Vulnerability description
Outdated or vulnerable software components include versions of server-side software that are no longer supported or have known, publicly disclosed vulnerabilities. Using outdated software significantly increases the attack surface of a system and may allow unauthorized access, data leaks, or service disruptions. Vulnerabilities in these components are often well-documented and actively exploited by attackers. Without security patches or vendor support, any weaknesses remain unmitigated, exposing the application to risks. In some cases, even after patching, the reported version may remain unchanged, requiring manual verification.
Risk description
The risk is that an attacker could search for an appropriate exploit (or create one himself) for any of these vulnerabilities and use it to attack the system. Since the vulnerabilities were discovered using only version-based testing, the risk level for this finding will not exceed 'high' severity. Critical risks will be assigned to vulnerabilities identified through accurate active testing methods.
Recommendation
In order to eliminate the risk of these vulnerabilities, we recommend you check the installed software version and upgrade to the latest version.
Classification
| CWE | CWE-1035 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Response URL | Evidence |
|---|---|---|
| http://8.218.50.207/sh.txt | http://8.218.50.207/sh.txt | Communication is made over unsecure, unencrypted HTTP. |
Vulnerability description
We noticed that the communication between the web browser and the server is done using the HTTP protocol, which transmits data unencrypted over the network.
Risk description
The risk is that an attacker who manages to intercept the communication at the network level can read and modify the data transmitted (including passwords, secret tokens, credit card information and other sensitive data).
Recommendation
We recommend you to reconfigure the web server to use HTTPS - which encrypts the communication between the web browser and the server.
Classification
| CWE | CWE-319 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| Software / Version | Category |
|---|---|
| Nginx 1.18.0 | Web servers, Reverse proxies |
| Ubuntu | Operating systems |
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
| CWE | CWE-200 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Evidence
| URL | Method | Parameters | Evidence |
|---|---|---|---|
| http://8.218.50.207/sh.txt | 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 | Credit Card Number: 42434041-4340-4542 41464742-4340-4542 65754777-4580-4445 27200136-2230-2022 4746-404140434247 6044-457160444573 4545-450445084545 4545-452510464545 4537-456845084506 46454545-4545-3245 55068246-5545-4545 4544-454445444544 4545-455945454577 4746-414040434247 45454545-4545-0945 48454545-4545-0645 45454145-7600-0985 41424647-4340-4542 62456031-6621-6245 45454722-4555-3545 41464346-4340-4542 45454545-4545-1745 40414647-4342-4542 4440-424140434244 4242-424242424242 4545-454745454564 65456721-6471-6545 4536-456845064509 4545-454545454541 46474646-4747-4344 45454545-4545-2545 4446-464140434244 45454545-4545-4145 45454547-4689-4545 45454545-4545-5845 44444444-4444-5544 45452035-4545-2645 45483511-8245-6101 65454545-4603-4545 51454211-4371-5145 46515340-4545-4545 4545-454745454515 3645-457922464505 45454616-4545-4545 65454545-4611-4545 4447-464140424244 3636-454545454527 45453445-4545-3645 42414647-4340-4542 24312421-3761-4536 4531-452145294529 47454545-4565-4445 45454710-4482-4644 4530-453645314537 4444-444444444455 4537-456845294527 45452645-4545-3645 45454608-4545-4545 45462614-2618-4546 4447-464040434244 41464247-4340-4542 4528-453645684503 40414647-4243-4542 47454447-4515-4445 4740-464140434247 4545-454545454525 4642-464140434246 4447-414342434244 4011-293616203113 4441-404342434241 4142-464140434241 44454445-4445-4445 41424340-4340-4542 36454504-4504-9945 4441-404240434244 44454545-4545-6745 4747-474747474747 4533-454545454529 4545-454545454533 43404647-4340-4542 |
Vulnerability description
We noticed that this application does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected. Sensitive data targeted usually consists of emails, credit card and social security numbers.
Risk description
The risk exists that sensitive personal information within the application could be accessed by unauthorized parties. This could lead to privacy violations, identity theft, or other forms of personal or corporate harm.
Recommendation
Compartmentalize the application to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
Classification
| CWE | CWE-201 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
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.
Classification
| CWE | CWE-1188 |
| OWASP Top 10 - 2017 | |
| OWASP Top 10 - 2021 |
Infrastructure Vulnerabilities
Evidence
| CVE | CVSS | EPSS Score | EPSS Percentile | CISA KEV | Summary |
|---|---|---|---|---|---|
| CVE-2021-23017 | 7.7 | 0.73166 | 0.98816 | No | A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in worker process crash or potential other impact. |
| CVE-2023-44487 | 7.5 | 0.94394 | 0.99974 | Yes | The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. |
| CVE-2021-3618 | 7.4 | 0.00615 | 0.70094 | No | ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer. |
| CVE-2022-41742 | 7.1 | 0.00095 | 0.26205 | No | NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted audio or video file. The issue affects only NGINX products that are built with the module ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module. |
| CVE-2022-41741 | 7 | 0.00828 | 0.7468 | No | NGINX Open Source before versions 1.23.2 and 1.22.1, NGINX Open Source Subscription before versions R2 P1 and R1 P1, and NGINX Plus before versions R27 P1 and R26 P1 have a vulnerability in the module ngx_http_mp4_module that might allow a local attacker to corrupt NGINX worker memory, resulting in its termination or potential other impact using a specially crafted audio or video file. The issue affects only NGINX products that are built with the ngx_http_mp4_module, when the mp4 directive is used in the configuration file. Further, the attack is possible only if an attacker can trigger processing of a specially crafted audio or video file with the module ngx_http_mp4_module. |
Vulnerability description
Vulnerabilities found for Nginx 1.18.0
Risk description
These vulnerabilities expose the affected applications to the risk of unauthorized access to confidential data and possibly to denial of service attacks. An attacker could search for an appropriate exploit (or create one) for any of these vulnerabilities and use it to attack the system. Notes: - The vulnerabilities are identified based on the server's version.; - Only the first 5 vulnerabilities with the highest risk are shown for each port.; Since the vulnerabilities were discovered using only version-based testing, the risk level for this finding will not exceed "high" severity. Critical risks will be assigned to vulnerabilities identified through accurate active testing methods.
Recommendation
We recommend you to upgrade the affected software to the latest version in order to eliminate the risks imposed by these vulnerabilities.
Evidence
We managed to detect a publicly accessible SSH service. Starting Nmap ( https://nmap.org ) at 2026-05-15 20:44 EEST Nmap scan report for 8.218.50.207 Host is up (0.20s latency).
PORT STATE SERVICE VERSION 22/tcp open ssh OpenSSH 8.2p1 Ubuntu 4ubuntu0.11 (Ubuntu Linux; protocol 2.0) | ssh-auth-methods: | Supported authentication methods: | publickey |_ password Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel
Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 2.40 seconds
Vulnerability description
We found that the SSH service with username/password authentication is publicly accessible. Network administrators often use remote administration protocols to control devices like switches, routers, and other essential systems. However, allowing these services to be accessible via the Internet can increase security risks, creating potential opportunities for attacks on the organization.
Risk description
Exposing this service online with username/password authentication can enable attackers to launch authentication attacks, like guessing login credentials, and potentially gaining unauthorized access. Vulnerabilities, such as unpatched software, protocol flaws, or backdoors could also be exploited. An example is the CVE-2024-3094 (XZ Utils Backdoor) vulnerability.
Recommendation
We recommend turning off SSH with username/password authentication access over the Internet and instead using a Virtual Private Network (VPN) that mandates two-factor authentication (2FA). If the SSH service is essential for business purposes, we recommend limiting access only from designated IP addresses using a firewall. Furthermore, it is advisable to utilize SSH Public Key Authentication since it employs a key pair to verify the identity of a user or process.
Evidence
We managed to detect that nginx has reached the End-of-Life (EOL).
Version detected: 1.18.0 End-of-life date: 2021-04-20 Latest version for the cycle: 1.18.0 This release cycle (1.18) doesn't have long-term-support (LTS). The cycle was released on 2020-04-21 and its latest release date was 2020-04-21.
Risk description
Using end-of-life (EOL) software poses significant security risks for organizations. EOL software no longer receives updates, including critical security patches. This creates a vulnerability landscape where known and potentially new security flaws remain unaddressed, making the software an attractive target for malicious actors. Attackers can exploit these vulnerabilities to gain unauthorized access, disrupt services, or steal sensitive data. Moreover, without updates, compatibility issues arise with newer technologies, leading to operational inefficiencies and increased potential for system failures. Additionally, regulatory and compliance risks accompany the use of EOL software. Many industries have strict data protection regulations that require up-to-date software to ensure the highest security standards. Non-compliance can result in hefty fines and legal consequences. Organizations also risk damaging their reputation if a breach occurs due to outdated software, eroding customer trust and potentially leading to a loss of business. Therefore, continuing to use EOL software undermines both security posture and business integrity, necessitating timely upgrades and proactive risk management strategies.
Recommendation
To mitigate the risks associated with end-of-life (EOL) software, it's crucial to take proactive steps. Start by identifying any EOL software currently in use within your organization. Once identified, prioritize upgrading or replacing these applications with supported versions that receive regular updates and security patches. This not only helps close security gaps but also ensures better compatibility with newer technologies, enhancing overall system efficiency and reliability.Additionally, develop a comprehensive software lifecycle management plan. This plan should include regular audits to identify upcoming EOL dates and a schedule for timely updates or replacements. Train your IT staff and users about the importance of keeping software up to date and the risks associated with using outdated versions. By maintaining a proactive approach to software management, you can significantly reduce security risks, ensure compliance with industry regulations, and protect your organization's reputation and customer trust.
Evidence
| Software / Version | Category |
|---|---|
| Ubuntu | Operating systems |
| Nginx 1.18.0 | Web servers, Reverse proxies |
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 |
|---|---|
| Linux 5.0 - 5.4 | 100% |
Vulnerability description
OS Detection