Document Title: =============== Freemake Video Converter 4.1.7 - Code Execution Date: ===== 2015-10-08 References: =========== http://www.vulnerability-lab.com/get_content.php?id=1616 VL-ID: ===== 1616 Common Vulnerability Scoring System: ==================================== 8.8 Introduction: ============= Freemake Video Converter converts video free to AVI, MP4, WMV, MKV, DVD, MP3, iPad, iPhone, PSP, Xbox, Android phones. Transform video to MP3 with one click! Rip & burn DVD/ Blu-ray. Convert YouTube to MP3, MP4, AVI, etc. Free, safe, guaranteed result. (Copy of the Vendor Homepage: http://www.freemake.com/free_video_converter/ ) Abstract: ========= An independent vulnerability laboratory researcher discovered a local code execution vulnerability in the official Freemake Video Converter v4.1.7 software. Report-Timeline: ================ 2015-10-09: Public Disclosure (Vulnerability Laboratory) Status: ======== Published Affected Products: ================== Freemake Product: FreemakeVideo Converter - Software (Windows) v4.1.7 Exploitation-Technique: ======================= Local Severity: ========= High Details: ======== 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 vulnerability is located in the `paste url` Download module that does not filter files like .php. Thus allows an attacker to execute the calculator finally. The vulnerability can be exploited by remote attackers without user interaction and the severity of the issue is high. The bug can be exploited because of a misconfigured validation typ. 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 privileged 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: ================= The code execution software vulnerability can be exploited by local attackers with low privileged 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 Note: Do not run your link by interaction yet 2. Run FreemakeVideo Converter.exe 3. Click paste URL 4. PHP code executed and issue is successful reproduced! PoC: Exploitcode Risk: ===== The security risk of the code execution web vulnerability in the software core is estimated as high. (CVSS 8.8) Credits: ======== ZwX - ( http://zwx.fr ) [ http://www.vulnerability-lab.com/show.php?user=ZwX ] Disclaimer: =========== 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. 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