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1 // Copyright (c) 2010 Google Inc. |
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2 // All rights reserved. |
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3 // |
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4 // Redistribution and use in source and binary forms, with or without |
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5 // modification, are permitted provided that the following conditions are |
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6 // met: |
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7 // |
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8 // * Redistributions of source code must retain the above copyright |
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9 // notice, this list of conditions and the following disclaimer. |
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10 // * Redistributions in binary form must reproduce the above |
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11 // copyright notice, this list of conditions and the following disclaimer |
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12 // in the documentation and/or other materials provided with the |
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13 // distribution. |
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14 // * Neither the name of Google Inc. nor the names of its |
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15 // contributors may be used to endorse or promote products derived from |
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16 // this software without specific prior written permission. |
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17 // |
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18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 |
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30 // exploitability_engine.cc: Generic exploitability engine. |
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31 // |
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32 // See exploitable_engine.h for documentation. |
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33 // |
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34 // Author: Cris Neckar |
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35 |
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36 |
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37 #include <cassert> |
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38 |
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39 #include "common/scoped_ptr.h" |
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40 #include "google_breakpad/processor/exploitability.h" |
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41 #include "google_breakpad/processor/minidump.h" |
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42 #include "google_breakpad/processor/process_state.h" |
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43 #include "processor/exploitability_win.h" |
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44 #include "processor/logging.h" |
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45 |
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46 namespace google_breakpad { |
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47 |
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48 Exploitability::Exploitability(Minidump *dump, |
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49 ProcessState *process_state) |
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50 : dump_(dump), |
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51 process_state_(process_state) {} |
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52 |
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53 ExploitabilityRating Exploitability::CheckExploitability() { |
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54 return CheckPlatformExploitability(); |
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55 } |
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56 |
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57 Exploitability *Exploitability::ExploitabilityForPlatform( |
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58 Minidump *dump, |
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59 ProcessState *process_state) { |
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60 Exploitability *platform_exploitability = NULL; |
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61 MinidumpSystemInfo *minidump_system_info = dump->GetSystemInfo(); |
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62 if (!minidump_system_info) |
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63 return NULL; |
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64 |
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65 const MDRawSystemInfo *raw_system_info = |
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66 minidump_system_info->system_info(); |
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67 if (!raw_system_info) |
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68 return NULL; |
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69 |
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70 switch (raw_system_info->platform_id) { |
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71 case MD_OS_WIN32_NT: |
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72 case MD_OS_WIN32_WINDOWS: { |
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73 platform_exploitability = new ExploitabilityWin(dump, |
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74 process_state); |
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75 break; |
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76 } |
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77 case MD_OS_MAC_OS_X: |
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78 case MD_OS_IOS: |
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79 case MD_OS_LINUX: |
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80 case MD_OS_UNIX: |
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81 case MD_OS_SOLARIS: |
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82 case MD_OS_ANDROID: |
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83 default: { |
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84 platform_exploitability = NULL; |
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85 break; |
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86 } |
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87 } |
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88 |
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89 BPLOG_IF(ERROR, !platform_exploitability) << |
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90 "No Exploitability module for platform: " << |
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91 process_state->system_info()->os; |
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92 return platform_exploitability; |
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93 } |
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94 |
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95 bool Exploitability::AddressIsAscii(uint64_t address) { |
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96 for (int i = 0; i < 8; i++) { |
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97 uint8_t byte = (address >> (8*i)) & 0xff; |
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98 if ((byte >= ' ' && byte <= '~') || byte == 0) |
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99 continue; |
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100 return false; |
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101 } |
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102 return true; |
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103 } |
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104 |
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105 } // namespace google_breakpad |
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106 |