Vulnerability Scan Result

Target:

http://gs.dhu.edu.cn/ (redirect)

Scanned target: https://gs.dhu.edu.cn/

Submitted: Feb 03, 2026 from SG

Public Scan

Scan mode: Passive (non-intrusive)

Summary

low

Info

Low

Medium

High

Critical

Screenshot

Screenshot could not be taken.

Title:	东华大学研究生院
Description:	{$SEO['description']}

IP Information

ip_address	218.193.144.93
country	CN
network_name	China Education and Research Network Center
asn	AS4538

Open Ports

80/tcp	http	- -
443/tcp	https	nginx -

Web Technologies

Software / Version	Category
Java	Programming languages
EasyUI	UI frameworks
jQuery 3.6.4	JavaScript libraries
Spring	Web frameworks
JSP	Web frameworks

Web Application Vulnerabilities

Evidence

Software / Version	Category
Java	Programming languages
EasyUI	UI frameworks
jQuery 3.6.4	JavaScript libraries
Spring	Web frameworks
JSP	Web frameworks

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://gs.dhu.edu.cn/	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

URL Evidence

URL	Evidence
https://gs.dhu.edu.cn/	Response headers include the HTTP Content-Security-Policy security header with the following security issues:default-src: https: URI in default-src allows the execution of unsafe scripts. object-src: We recommend restricting object-src to 'none'. 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'. default-src: data: URI in default-src allows the execution of unsafe scripts. script-src: ''unsafe-inline'' allows the execution of unsafe in-page scripts and event handlers. script-src: 'unsafe-eval' allows the execution of code injected into DOM APIs such as eval(). default-src: default-src should not allow '*' as source. This may enable execution of malicious JavaScript.

https://gs.dhu.edu.cn/

Response headers include the HTTP Content-Security-Policy security header with the following security issues:default-src: https: URI in default-src allows the execution of unsafe scripts. object-src: We recommend restricting object-src to 'none'. 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'. default-src: data: URI in default-src allows the execution of unsafe scripts. script-src: ''unsafe-inline'' allows the execution of unsafe in-page scripts and event handlers. script-src: 'unsafe-eval' allows the execution of code injected into DOM APIs such as eval(). default-src: default-src should not allow '*' as source. This may enable execution of malicious JavaScript.

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
OWASP Top 10 - 2021

Evidence

URL	Method	Parameters	Evidence
https://gs.dhu.edu.cn/	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	Email Address: yjsdep@dhu.edu.cn

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
OWASP Top 10 - 2021

Evidence

URL
Missing: https://gs.dhu.edu.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.

Evidence

URL	Method	Summary
https://gs.dhu.edu.cn/	OPTIONS	We did a HTTP OPTIONS request. The server responded with a 200 status code and the header: `Allow: GET,POST,OPTIONS,HEAD` 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
OWASP Top 10 - 2021

Infrastructure Vulnerabilities

Operating System	Accuracy
Linux 3.10	97%

Evidence

Domain Queried	DNS Record Type	Description	Value
gs.dhu.edu.cn	A	IPv4 address	218.193.144.93
gs.dhu.edu.cn	AAAA	IPv6 address	2001:da8:8008:100::93

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
Java	Programming languages
EasyUI	UI frameworks
JSP	Web frameworks
Spring	Web frameworks
jQuery	JavaScript libraries

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.