Author: Ye Yint Min Thu Htut 1. OVERVIEW The Spider Media Player is vulnerable to Insecure DLL Hijacking Vulnerability. Similar terms that describe this vulnerability have been come up with Remote Binary Planting, and Insecure DLL Loading/Injection/Hijacking/Preloading. 2. PRODUCT DESCRIPTION Spider Player is a skinnable audio player with full support for all major audio formats: MP3, AAC, WMA, OGG, FLAC and others. Its most interesting features include audio streaming, integration with Shoutcast and Icecast radio directories, lossless Internet radio recording, advanced CD Ripping and Converting capabilities, FreeDB integration, 32-sound processing for crystal-clear sound, customizable local and global hotkeys and crossfading support. Spider Player is small and blazingly fast, and uses very few system resources. 3. VULNERABILITY DESCRIPTION The Spider Media player application passes an insufficiently qualified path in loading an external library when a user launch the application Affected Library List --------------------- # dwmapi.dll # olepro32.dll # dsound.dll # AUDIOSES.dll 4. VERSIONS AFFECTED 2.5.3 and prior 5. PROOF-OF-CONCEPT/EXPLOIT Tested Platform: Windows 7 x64 (Fresh Windows) 6. IMPACT This occurs when an application fails to resolve a DLL because the DLL does not exist in the specified path or search directories. If this happens, a malicious Dll with the same name can be placed in the specified path directory leading to remote code execution. 7. SOLUTION For application developers: Require set paths for DLLs in applications For system administrators: Disable write permissions to relative application folders Utilize least privilege access to prevent users (and applications) from having too much access to the system For both groups: Microsoft has a great article explaining the DLL-related registry keys and how they can be used to protect applications - information-about-dll-preloading-remote-attack-vector.aspx 8. VENDOR VIT 9. CREDIT This vulnerability was discovered by Ye Yint Min Thu htut, 10. DISCLOSURE TIME-LINE 07-26-2017: vulnerability discovered 07-26-2010: notified vendor [ vendor's website was no long avaiable ] 07-26-2017: reported to for coordination 08-29-2017: vulnerability disclosed 11. REFERENCES loading-of-libraries-to-prevent-dll-preloading-attacks # Iranian Exploit DataBase = http://IeDb.Ir [2017-08-04]