Vulnerability Scan Result

Target:

https://tyutjg.smartclass.cn/

Scanned target: https://tyutjg.smartclass.cn/

Submitted: April 13, 2025 from KZ

Public scan

Scan mode: Passive (non-intrusive)

Summary

medium

Info

Low

Medium

High

Critical

Screenshot

Title:	é¦é¡µ
Description:	No description found

IP Information

IP address	115.28.139.59
Country	CN
AS number	AS37963
Net name	Hangzhou Alibaba Advertising Co Ltd

Open Ports

80/tcp	http	Tengine httpd -
88/tcp	https	nginx -
443/tcp	https	Tengine httpd -
8000/tcp	https	nginx -

Web Technologies

Software / Version	Category
Font Awesome	Font scripts
EasyUI	UI frameworks
jQuery	JavaScript libraries
HSTS	Security

Web Application Vulnerabilities

Evidence

URL	Cookie Name	Evidence
https://tyutjg.smartclass.cn/	acw_tc	Set-Cookie: acw_tc=0a09ec3617445423763478966e118bda988944cb8612546a512707fa75c26f

Vulnerability description

We found that a cookie has been set without the Secure flag, which means the browser will send it over an unencrypted channel (plain HTTP) if such a request is made. The root cause for this usually revolves around misconfigurations in the code or server settings.

Risk description

The risk exists that an attacker will intercept the clear-text communication between the browser and the server and he will steal the cookie of the user. If this is a session cookie, the attacker could gain unauthorized access to the victim's web session.

Recommendation

Whenever a cookie contains sensitive information or is a session token, then it should always be passed using an encrypted channel. Ensure that the secure flag is set for cookies containing such sensitive information.

Classification

CWE	CWE-614
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL Evidence

URL	Evidence
https://tyutjg.smartclass.cn/	Response headers include the HTTP Content-Security-Policy security header with the following security issues:frame-ancestors: This directive tells the browser whether you want to allow your site to be framed or not. By preventing a browser from framing your site you can defend against attacks like clickjacking. The recommended value is 'none' or 'self'. script-src: ''unsafe-inline'' allows the execution of unsafe in-page scripts and event handlers. base-uri: Missing base-uri allows the injection of base tags. They can be used to set the base URL for all relative (script) URLs to an attacker controlled domain. We recommend setting it to 'none' or 'self'. script-src: 'unsafe-eval' allows the execution of code injected into DOM APIs such as eval(). frame-ancestors: Allow only resources downloaded over HTTPS. default-src: data: URI in default-src allows the execution of unsafe scripts. default-src: 'self' can be problematic if you host JSONP, Angular or user uploaded files. object-src: We recommend restricting object-src to 'none'.

https://tyutjg.smartclass.cn/

Response headers include the HTTP Content-Security-Policy security header with the following security issues:frame-ancestors: This directive tells the browser whether you want to allow your site to be framed or not. By preventing a browser from framing your site you can defend against attacks like clickjacking. The recommended value is 'none' or 'self'. script-src: ''unsafe-inline'' allows the execution of unsafe in-page scripts and event handlers. base-uri: Missing base-uri allows the injection of base tags. They can be used to set the base URL for all relative (script) URLs to an attacker controlled domain. We recommend setting it to 'none' or 'self'. script-src: 'unsafe-eval' allows the execution of code injected into DOM APIs such as eval(). frame-ancestors: Allow only resources downloaded over HTTPS. default-src: data: URI in default-src allows the execution of unsafe scripts. default-src: 'self' can be problematic if you host JSONP, Angular or user uploaded files. object-src: We recommend restricting object-src to 'none'.

Vulnerability description

We noticed that the Content-Security-Policy (CSP) header configured for the web application includes unsafe directives. The CSP header activates a protection mechanism implemented in web browsers which prevents exploitation of Cross-Site Scripting vulnerabilities (XSS) by restricting the sources from which content can be loaded or executed.

Risk description

For example, if the unsafe-inline directive is present in the CSP header, the execution of inline scripts and event handlers is allowed. This can be exploited by an attacker to execute arbitrary JavaScript code in the context of the vulnerable application.

Recommendation

Remove the unsafe values from the directives, adopt nonces or hashes for safer inclusion of inline scripts if they are needed, and explicitly define the sources from which scripts, styles, images or other resources can be loaded.

Classification

CWE	CWE-693
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL	Evidence
https://tyutjg.smartclass.cn/	Response headers do not include the Referrer-Policy HTTP security header as well as the `<meta/>` tag with name 'referrer' is not present in the response.

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

Software / Version	Category
Font Awesome	Font scripts
EasyUI	UI frameworks
jQuery	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

URL
Missing: https://tyutjg.smartclass.cn/.well-known/security.txt

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

OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL	Method	Summary
https://tyutjg.smartclass.cn/	OPTIONS	We did a HTTP OPTIONS request. The server responded with a 405 status code and the header: `Allow: GET, HEAD, OPTIONS, TRACE` Request / Response

Vulnerability description

We have noticed that the webserver responded with an Allow HTTP header when an OPTIONS HTTP request was sent. This method responds to requests by providing information about the methods available for the target resource.

Risk description

The only risk this might present nowadays is revealing debug HTTP methods that can be used on the server. This can present a danger if any of those methods can lead to sensitive information, like authentication information, secret keys.

Recommendation

We recommend that you check for unused HTTP methods or even better, disable the OPTIONS method. This can be done using your webserver configuration.

Classification

CWE	CWE-16
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Infrastructure Vulnerabilities

Evidence

Domain Queried	DNS Record Type	Description	Value
tyutjg.smartclass.cn	A	IPv4 address	115.28.139.59

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

Software / Version	Category
EasyUI	UI frameworks
Tengine	Web servers
jQuery	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.

Evidence

Software / Version	Category
Microsoft ASP.NET	Web frameworks
Tengine	Web servers
jQuery 3.6.1	JavaScript libraries
Font Awesome	Font scripts
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.

Evidence

Software / Version	Category
EasyUI	UI frameworks
Tengine	Web servers
jQuery	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.

Evidence

Software / Version	Category
Tengine	Web servers

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.