Closed sergioperezcheco closed 1 week ago
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Title: [Bug] There is an XSS vulnerability
Docker
v2.14.0
Other Linux
Centos7
Edge
latest
There is an XSS vulnerability
Prompt word: How to detect whether there is xss and how to verify
reply:
Cross-site scripting (XSS) is a common web security vulnerability. Attackers inject malicious scripts into web pages to steal user information or perform other malicious operations. Here's how to detect and verify XSS vulnerabilities:
### 1. Manual detection
#### a. Input test
Enter the following content in the input box of the website and observe whether it will be executed on the page:
- `<script>alert('XSS')</script>`
- `<img src=x onerror=alert('XSS')>`
- `<a href="javascript:alert('XSS')">Click Me</a>`
- `<svg/onload=alert('XSS')>`
#### b. Stored XSS testing
If the website allows users to submit content and store it on the server, try submitting the above test script, then visit the page containing the content and observe whether the script is executed.
#### c. Reflected XSS testing
If the website's response contains content entered by the user, try injecting a script in the URL parameters and observe whether the script is executed. For example:
#### d. DOM type XSS testing
DOM-type XSS is a vulnerability based on client-side scripts. Try entering the following content in the input box and observe whether the script is executed:
```html
<img src=x onerror=alert('XSS')>
Burp Suite is a popular web security testing tool that can be used to scan and detect XSS vulnerabilities.
OWASP ZAP (Zed Attack Proxy) is an open source web security testing tool that can be used to scan and detect XSS vulnerabilities.
XSSer is a tool specifically designed to detect XSS vulnerabilities and can be used through the command line.
xsser -u "http://example.com/search?q=FUZZ" --auto
If a warning box (such as alert('XSS')
) pops up on the page after entering the test script, it indicates that there is an XSS vulnerability.
Try to use XSS vulnerabilities to perform more complex operations, such as stealing cookies, session hijacking, etc., to further verify the harm of the vulnerability.
Content-Security-Policy
header to limit the script sources that the page can execute.Through the above methods, XSS vulnerabilities can be effectively detected and verified, and corresponding measures can be taken to repair them.
### 🚦 Expected results
Check historical versions and fix them as soon as possible
### 📝 Supplementary information
_No response_
或许应该移除allow-forms allow-modals,只保留allow-scripts即可
📦 部署方式
Docker
📌 软件版本
v2.14.0
💻 系统环境
Other Linux
📌 系统版本
Centos7
🌐 浏览器
Edge
📌 浏览器版本
latest
🐛 问题描述
存在XSS漏洞
📷 复现步骤
提示词:
如何检测是否有xss,怎么进行验证
回复:http://example.com/search?q=
2. 自动检测工具
a. Burp Suite
Burp Suite是一款流行的Web安全测试工具,可以用来扫描和检测XSS漏洞。
b. OWASP ZAP
OWASP ZAP(Zed Attack Proxy)是一款开源的Web安全测试工具,可以用来扫描和检测XSS漏洞。
c. XSSer
XSSer是一款专门用于检测XSS漏洞的工具,可以通过命令行使用。
3. 验证XSS漏洞
a. 确认脚本执行
如果在输入测试脚本后,页面弹出警告框(如
alert('XSS')
),则表明存在XSS漏洞。b. 确认漏洞类型
c. 利用漏洞
尝试利用XSS漏洞执行更复杂的操作,如窃取Cookie、会话劫持等,进一步验证漏洞的危害性。
4. 修复建议
Content-Security-Policy
头,限制页面可以执行的脚本来源。通过上述方法,可以有效地检测和验证XSS漏洞,并采取相应的措施进行修复。