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Message-ID: <AANLkTikeybBqPQCtQOurkPPrET8aNZuk2DMNS43mxefh@mail.gmail.com> Date: Thu, 2 Sep 2010 15:23:54 +0800 From: YGN Ethical Hacker Group <lists@...g.net> To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com, bugs@...uritytracker.com, vuln@...unia.com, secalert@...urityreason.com, news@...uriteam.com, vuln@...urity.nnov.ru Subject: Moovida Media Player version 2.0.0.15 Insecure DLL Hijacking Vulnerability (libc.dll,quserex.dll) 1. OVERVIEW The Moovida Media Player application is vulnerable to Insecure DLL Hijacking Vulnerability. Similar terms that describe this vulnerability have been come up with Remote Binary Planting, Unsafe Library Loading, and Insecure DLL Loading/Injection/Hijacking/Preloading. 2. PRODUCT DESCRIPTION Moovida Media Player is a free and open source media center that allows you to enjoy all of your music, video and pictures in an awsome interface.It allows you to import your media from any of your local folders, network sources or external devices. It supports an extensive list of popular file formats and codecs including the DivX, h264, avi, asf, wmv, mkv, flv, mov, ogg, so you can play virtually any video in your library, whether film or tv series. (http://www.moovida.com/features/) 3. VULNERABILITY DESCRIPTION The Moovida Media Player application passes an insufficiently qualified path in loading external libraries, "libc.dll" and "quserex.dll" when a user opens its associated file with extensions - f4v, flv, img, dv. 4. VERSIONS AFFECTED 2.0.0.15 and lower version family of 2.x.x.x 5. PROOF-OF-CONCEPT/EXPLOIT http://core.yehg.net/lab/pr0js/advisories/dll_hijacking/moovida/poc/movie/ http://core.yehg.net/lab/pr0js/advisories/dll_hijacking/moovida/poc/moovida.exe_2.0.0.15_[libc.dll,quserex.dll].zip Tested Platform: OS: Windows XP Service Pack 3 (Fresh Windows Copy) 6. IMPACT Attackers can trigger a successful exploit against a victim user in a number of ways such as placing a malicious external library file made as hidden attribute and a seemingly interesting file in network shares, usb drives, file sharing networks, social networks, ..etc 7. SOLUTION Fixed version from the vendor has not been released yet. However, it is suggested that the following workarounds be deployed by users to protect increasing mass exploitation of this vulnerability class: - Disable loading of libraries from WebDAV and remote network shares - Disable the WebClient service Please see workaround solution links in References section. 8. VENDOR Moovida Developers Team http://www.moovida.com/ 9. CREDIT This vulnerability was discovered by Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar. 10. DISCLOSURE TIME-LINE 08-28-2010: vulnerability discovered 08-28-2010: notified vendor via support ticket 09-02-2010: notified vendor via support forum 09-02-2010: vulnerability disclosed 11. REFERENCES Original Advisory URL: http://core.yehg.net/lab/pr0js/advisories/dll_hijacking/[moovida]_2.0.0.15_dll_hijacking(libc.dll,quserex.dll) Workaround Solution: http://support.microsoft.com/kb/2264107 Workaround Solution: https://www.microsoft.com/technet/security/advisory/2269637.mspx#EGF Developer Solution: http://msdn.microsoft.com/en-us/library/ff919712%28v=VS.85%29.aspx Unofficial DLL Hijacking List: http://www.corelan.be:8800/index.php/2010/08/25/dll-hijacking-kb-2269637-the-unofficial-list/ #yehg [09-02-2010] --------------------------------- Best regards, YGN Ethical Hacker Group Yangon, Myanmar http://yehg.net Our Lab | http://yehg.net/lab Our Directory | http://yehg.net/hwd
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