[FD] VUPlayer 2.49 - (.pls) Buffer Overflow Vulnerability

Document Title: =============== VUPlayer 2.49 - (.pls) Buffer Overflow Vulnerability References (Source): ==================== http://ift.tt/2a755j7 Release Date: ============= 2016-07-25 Vulnerability Laboratory ID (VL-ID): ==================================== 1876 Common Vulnerability Scoring System: ==================================== 6.4 Product & Service Introduction: =============================== VUPlayer is a freeware multi-format audio player for windows. (Copy of the Vendor Homepage: http://ift.tt/2aw8ltF ) Abstract Advisory Information: ============================== An independent vulnerability laboratory researcher discovered a local buffer overflow vulnerability in the official VUPlayer v2.49 software. Vulnerability Disclosure Timeline: ================================== 2016-07-25: Public Disclosure (Vulnerability Laboratory) Discovery Status: ================= Published Affected Product(s): ==================== James Chapman Product: VUPlayer - Music Player Software 2.49 Exploitation Technique: ======================= Local Severity Level: =============== High Technical Details & Description: ================================ A buffer overflow vulnerability has been discovered in the official VUPlayer v2.49 software. The vulnerability allows local attackers to overwrite the registers to compromise the local software process. The classic buffer overflow vulnerability is located in the software VUPlayer. An attacker can manipulate the bit EIP register in order to execute the next instruction of their choice. Attackers are able to for example execute arbitrary codes with process privileges. The attacker includes a large unicode string to overwrite the EIP register of the process. Finally the attacker is able to takeover the process by an overwrite of the active program process to compromise the computer system. The security risk of the buffer overflow vulnerability is estimated as high with a cvss (common vulnerability scoring system) count of 6.4. Exploitation of the vulnerability requires a low privilege or restricted system user account without user interaction. Successful exploitation of the vulnerability results in computer system manipulation and compromise of the computer system. Affected Extension(s): [+] .pls Proof of Concept (PoC): ======================= The buffer overflow 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 VUPlayer.exe 2. Run the code in perl and a file format (.pls) will create 3. Click File - Open a playlist 4. Select the file (.pls) 5. Software will crash with Access violation 6. Successful reproduce of the local buffer overflow vulnerability!

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