Play TV 1.25.1 Build r123776 DLL Hijacking
Posted on 04 September 2017
Document Title: =============== Play TV v1.25.1(Build r123776) - DLL Hijack Vulnerability References (Source): ==================== https://www.vulnerability-lab.com/get_content.php?id=2085 Release Date: ============= 2017-09-04 Vulnerability Laboratory ID (VL-ID): ==================================== 2085 Common Vulnerability Scoring System: ==================================== 3.3 Vulnerability Class: ==================== Privilege Escalation Current Estimated Price: ======================== 500a! - 1.000a! Product & Service Introduction: =============================== Plays.tv is the ultimate platform for gamers to record, replay and relive gaming highlights. Itas easy to create quality video content in no time, for your whole PC game library. play.tv consider as part of ATI Software package , and other third parties. ( Copy of the Homepage: http://plays.tv/download ) Abstract Advisory Information: ============================== The vulnerability laboratory core research team discovered a dll vulnerability in the official Play TV v1.25.1(Build r123776) software. Vulnerability Disclosure Timeline: ================================== 2017-07-11: Researcher Notification & Coordination (Security Researcher) 2017-07-12: Vendor Notification (Security Department) 2017-**-**: Vendor Response/Feedback (Security Department) 2017-**-**: Vendor Fix/Patch (Service Developer Team) 2017-**-**: Security Acknowledgements (Security Department) 2017-09-04: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== Exploitation Technique: ======================= Local Severity Level: =============== Medium Technical Details & Description: ================================ A local dll injection vulnerability has been discovered in the official Play TV software 1.25.1(build r123776). The issue allows local attackers to inject code to vulnerable dynamic link libraries to compromise the process or to gain higher system access privileges. Thus allows a local attacker to compromise the system process of the affected software to follow up with manipulations. Vulnerable Software [+] Play TV software 1.25.1(build r123776) Vulnerable Libraries: [+] api-ms-win-core-fibers-l1-1-1.dll [+] api-ms-win-core-localization-l1-2-1.dll [+] api-ms-win-core-file-l2-1-1.dll [+] api-ms-win-security-systemfunctions-l1-1-0.dll [+] api-ms-win-core-sysinfo-l1-2-1.dll Proof of Concept (PoC): ======================= The dll hijack 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. Generate a malicious dynamic link library 2. Rename it to any name mentioned in vulnerable libraries like api-ms-win-security-systemfunctions-l1-1-0.dll 3. Copy DLL file into applications directory path 4. Successfully reproduce the dll hijacking issue! Security Risk: ============== The security risk of the dll hijacking vulnerability in the software client is estimated as medium (CVSS 3.3). Credits & Authors: ================== Lawrence Amer [zeroattck@gmail.com] - https://www.vulnerability-lab.com/show.php?user=Lawrence+Amer 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 Labs or its suppliers have been advised of the possibility of such damages. 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