[FD] Freemake Video Downloader 3.7.1 - Code Execution Vulnerability

Document Title: =============== Freemake Video Downloader 3.7.1 - Code Execution Vulnerability References (Source): ==================== http://ift.tt/1Zu9MZY Release Date: ============= 2015-10-12 Vulnerability Laboratory ID (VL-ID): ==================================== 1617 Common Vulnerability Scoring System: ==================================== 8.8 Product & Service Introduction: =============================== Freemake YouTube Downloader is a free software to download online videos to PC free and fast. Download videos from YouTube, Facebook, Dailymotion, Vevo, Vimeo, and 10,000+ sites. You can grab any streaming video in original quality or convert it to MP3, AVI, MKV, WMV, 3GP, or for iPhone, iPod, PSP, Android. Easy setup, no fees, no signup, no limitations. (Copy of the Vendor Homepage: http://ift.tt/RDTY7j ) Abstract Advisory Information: ============================== An independent vulnerability laboratory researcher discovered a code execution vulnerability in the official FreemakeVideoDownloader v3.7.1 software. Vulnerability Disclosure Timeline: ================================== 2015-10-12: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== Freemake Product: Freemake Video Downloader - Software (Windows) 3.7.1 Exploitation Technique: ======================= Local Severity Level: =============== High Technical Details & Description: ================================ A code execution web vulnerability has been discovered in the official FreemakeVideo Converter v4.1.7 software. The vulnerability allows an attacker to execute malicious codes by interaction with a vulnerable software input field. The security vulnerability is present in the `paste url` module of the software. The download module does not filter the file type .php and thus finally allows an attacker to execute for example the calculator. The vulnerability can be exploited by local attackers without interaction. The severity of the issue is high and the bug can be exploited because of a misconfigured file validation mechanism. The security risk of the code execution vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 8.8. Exploitation of the vulnerability requires a low privilege system user account and no user interaction. Successful exploitation of the software vulnerability results in system compromise by a classic url code execution. Vulnerable Module(s): [+] Download Vulnerable Input(s): [+] paste url Affected Module(s): [+] .php Proof of Concept (PoC): ======================= The code execution vulnerability can be exploited by local attackers with restricted system user account and without user interaction. For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue. Manual steps to reproduce the vulnerability ... 1. Launch your browser and paste your malicious link in your url input field (Do not process to open your link yet!) 2. Run Freemake VideoDownloader.exe 3. Click paste url 4. The php code executes successful after usage of the url paste 5. Successful reproduce of the code execution vulnerability! PoC: Exploit Security Risk: ============== The security risk of the code execution web vulnerability in the software core is estimated as high. (CVSS 8.8) Credits & Authors: ================== ZwX - (http://zwx.fr) [ http://ift.tt/1OEBOwM ] Disclaimer & Information: ========================= The information provided in this advisory is provided as it is without any warranty. Vulnerability Lab disclaims all warranties, 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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