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1 | goroh.kun@gmail.com | |
2 | - | 2014/01/03 |
2 | + | 2014/01/04 |
3 | ||
4 | - | ROP toolkit |
4 | + | |
5 | - | http://www.fiercewaffle.com/softwareArticle.php?id=10 |
5 | + | |
6 | 多いほうが使われる。このexploitでは0x1fe70の値が51, 0x1ff70の値が52なので、1ff00~が利用される。 | |
7 | ・ここで、eepromの0x1fe00からまた別のコードを0x279400にロードして、Threadを起動。entrypointは0x1002f9, stackpointは0x279400へ。 | |
8 | ・0x18f198からの関数にてSDカードを"YS:に"マウントしている。 | |
9 | ・別Threadにて、YS:Launcher.datをオープンして、0x2b0000番地にロード、その後 sub_22efa8にておそらくロードしたバイナリを復号化している? | |
10 | - | ・ここで、eepromの0x1fe00からまた別のコードを0x279400にロードして、スタックをロードした箇所に移動させてROPコード継続 |
10 | + | ・その後、ropを0x2b0000から継続。 |
11 | - | ・続いて、YS:Launcher.datをオープンして、0x2b0000番地にロード、スタックをロードした箇所に移動させてROPコード継続 |
11 | + | |
12 | - | ・× SDカードをYSにマウントしているようなコードはなかった。存在しないドライブの場合defaultでSDカードが利用されるのかも |
12 | + | |
13 | - | ⇒0x18f198からの関数がそれだった。 |
13 | + | # 3D gateway Installer |
14 | #EEPROM 0x1ffb4 | |
15 | ######################### | |
16 | - | #ROP Loader |
16 | + | |
17 | 00 FE 01 00 : R0 | |
18 | 00 01 00 00 : R2 | |
19 | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} | |
20 | 00 94 27 00 : R1 | |
21 | FC 34 13 00 : PC ; eeprom_read(0x1fe00, 0x279400, 0x100) ; return code LDMFD SP!, {R4,PC} | |
22 | FE FF FF FF : R4 ; Thread processorid CPUID0 | |
23 | B1 49 15 00 : PC ; POP {R1-R3,PC} | |
24 | F9 02 10 00 : R1 ; Thread func entry point | |
25 | 00 00 00 00 : R2 ; Thread arg | |
26 | 00 94 27 00 : R3 ; Thread stacktop | |
27 | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} | |
28 | 2D 00 00 00 : R0 ; Thread Handle | |
29 | 90 B6 10 00 : PC ; SVC 8(create thread) | |
30 | F0 93 27 00 : ; thread result addr (R1 value) | |
31 | E8 93 27 00 : ; thread result addr (R4 value) | |
32 | 00 00 00 00 : ??? | |
33 | 09 FB 19 00 : PC ; B loc_19FB08 | |
34 | ; 無限ループ | |
35 | ||
36 | ||
37 | ######################### | |
38 | #EEPROM 0x1fe00 | |
39 | #loaded at 0x279400 | |
40 | ######################### | |
41 | B9 F2 10 00 : PC ; POP {R0,R2,PC} | |
42 | - | F9 02 10 00 : PC |
42 | + | |
43 | - | F9 02 10 00 : PC |
43 | + | |
44 | - | F9 02 10 00 : PC |
44 | + | |
45 | - | F9 02 10 00 : PC |
45 | + | |
46 | - | F9 02 10 00 : PC |
46 | + | |
47 | 00 02 20 00 : R5 | |
48 | - | 00 00 00 00 : R1 |
48 | + | |
49 | 00 90 27 00 : R0 | |
50 | 01 00 00 00 : R2 | |
51 | E1 49 15 00 : PC ; POP {R1,PC} | |
52 | 38 6F 27 00 : R1 ; "YS:/Launcher.dat" | |
53 | AC 82 1B 00 : PC ; IFile_Open(0x279000, "YS:/Launcher.dat", 0x1); return code LDMFD SP!, {R4-R8,PC} | |
54 | DC D5 18 00 : R4 | |
55 | 40 83 27 00 : R5 | |
56 | 00 02 10 00 : R6 | |
57 | CC 48 00 00 : R7 | |
58 | 60 3D 14 00 : R8 | |
59 | B9 F2 10 00 : PC ; POP {R0,R2,PC} | |
60 | - | F9 02 10 00 : PC |
60 | + | |
61 | - | F9 02 10 00 : PC |
61 | + | |
62 | - | F9 02 10 00 : PC |
62 | + | |
63 | - | F9 02 10 00 : PC |
63 | + | |
64 | - | F9 02 10 00 : PC |
64 | + | |
65 | - | F9 02 10 00 : PC |
65 | + | |
66 | - | F9 02 10 00 : PC |
66 | + | |
67 | - | F9 02 10 00 : PC |
67 | + | |
68 | - | F9 02 10 00 : PC |
68 | + | |
69 | - | F9 02 10 00 : PC |
69 | + | 51 00 63 36 : R1 ; ### it's profile data counter and crc16 ### |
70 | - | F9 02 10 00 : PC |
70 | + | |
71 | - | F9 02 10 00 : PC |
71 | + | |
72 | - | 8C 53 10 00 : PC |
72 | + | |
73 | - | 8C 53 10 00 : LDMFD SP!, {R3,PC} |
73 | + | |
74 | - | 24 6B 03 00 : R3 |
74 | + | |
75 | - | ; もしカスタマイズしてコードの長さが変わった場合は、ここも合わせて変更する |
75 | + | |
76 | - | 60 3D 14 00 : PC |
76 | + | |
77 | 00 C1 1A 00 : R8 | |
78 | - | ; 0x2794d8(SP) + 0x36b24(R3) + 4 = 0x2b0000 |
78 | + | |
79 | 9B 44 1B 00 : PC ; POP {R0-R4,R7,PC} | |
80 | 00 01 10 00 : R0 | |
81 | BC 4C 14 00 : R1 | |
82 | 00 00 2B 00 : R2 | |
83 | 00 90 00 00 : R3 | |
84 | E1 49 15 00 : R4 | |
85 | 77 77 77 77 : R7 | |
86 | AC EF 22 00 : PC ; sub_22efa8(0x100100, 0x144cbc, 0x2b0000, 0x9000) ; return code LDMFD SP!, {R4-R8,PC} | |
87 | 88 5C 10 00 : R4 | |
88 | - | D0 8C 1E 00 : R4 |
88 | + | 00 00 0E 00 : R5 |
89 | 90 03 25 00 : R6 | |
90 | - | 9C 94 27 F0 : R3 |
90 | + | C0 FA 1E 00 : R7 |
91 | - | ; もしカスタマイズしてコードの長さが変わった場合は、ここも合わせて変更する |
91 | + | 91 FE 16 00 : R8 |
92 | - | 60 3D 14 00 : |
92 | + | |
93 | 28 6B 03 00 : R3 | |
94 | 60 3D 14 00 : PC ; | |
95 | - | ; 0xfffff60(SP) + 0xf027949c(R3) + 4 = 0x279400 |
95 | + | |
96 | ROM:00143D64 04 F0 9D E4 LDR PC, [SP+4+var_4],#4 | |
97 | ||
98 | - | #Launcher.dat |
98 | + | ######################## |
99 | - | #0x2b0000 |
99 | + | 1st stage |
100 | #loaded at 0x2b0000 | |
101 | ######################### | |
102 | - | ED 01 10 00 : PC ; POP {R4,PC} |
102 | + | |
103 | - | 04 90 27 00 : R4 |
103 | + | E0 FE 01 00 : R0 |
104 | 10 00 00 00 : R2 | |
105 | - | 08 90 27 00 : R1 |
105 | + | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} |
106 | - | AC 1A 10 00 : PC |
106 | + | |
107 | - | ROM:00101AAC 00 00 A0 E3 MOV R0, #0 |
107 | + | FC 34 13 00 : PC ; eeprom_read(0x1fee0, 0x279400, 0x10) ; return code LDMFD SP!, {R4,PC} |
108 | - | ROM:00101AB0 00 00 84 E5 STR R0, [R4] |
108 | + | 44 44 44 44 : R4 |
109 | - | ROM:00101AB4 00 00 81 E5 STR R0, [R1] |
109 | + | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} |
110 | - | ROM:00101AB8 00 00 A0 E3 MOV R0, #0 |
110 | + | 00 94 27 00 : R0 |
111 | - | ROM:00101ABC 10 80 BD E8 LDMFD SP!, {R4,PC} |
111 | + | 2F F7 1A 00 : PC |
112 | - | 04 00 00 00 : R4 |
112 | + | ;001AF72E LDR R0, [R0] |
113 | ;001AF730 POP {R4,PC} | |
114 | - | 00 90 27 00 : R0 ; iFile Object |
114 | + | ⇒ ここで、R0に0x9a7e0000が入るはず |
115 | - | 06 00 00 00 : R2 |
115 | + | 44 44 44 44 : R4 |
116 | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} | |
117 | - | B4 00 2B 00 : R1 |
117 | + | 01 00 7E 9A : R1 |
118 | - | ## Launcher.dat is loaded at 0x2b0000, so 0x2b00b4 is "YS:/DUMP.BIN" |
118 | + | 58 B2 18 00 : PC |
119 | - | AC 82 1B 00 : PC ; IFile_Open(0x279000, "YS:/DUMP.bin", 0x6); return code LDMFD SP!, {R4-R8,PC} |
119 | + | ;0018B258 CMP R0, R1 |
120 | - | DC D5 18 00 : R4 ; no use |
120 | + | ;0018B25C MOVEQ R0, #1 |
121 | - | 40 83 27 00 : R5 ; no use |
121 | + | ;0018B260 MOVNE R0, #0 |
122 | - | 00 02 10 00 : R6 ; no use |
122 | + | ;0018B264 LDMFD SP!, {R4,PC} |
123 | - | CC 48 00 00 : R7 ; no use |
123 | + | ⇒ R1(0x9a7e0001)とR0(0x9a7e0000)との比較。ローダのバージョンを見てる |
124 | - | 60 3D 14 00 : R8 ; no use |
124 | + | ⇒ eur_jpn_kor(0x9a7e0000), taiwan(0x9a7e0001), china(0x9a7e0002) |
125 | 44 44 44 44 : R4 | |
126 | - | 00 90 27 00 : R0 ; iFile Object |
126 | + | D4 14 10 00 : PC ; LDMFD SP!, {R4,PC} |
127 | - | 00 00 10 00 : R2 ; dump start address |
127 | + | 84 7D 2B 00 : R4 |
128 | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} | |
129 | 88 01 27 00 : R0 | |
130 | 18 CF 18 00 : PC | |
131 | ;0018CF18 STREQ R0, [R4,#0x24] | |
132 | ;0018CF1C LDMFD SP!, {R4,PC} | |
133 | ⇒ R1 == R0だったら、0x2b7d84+0x24=0x2b7da8に、0x270188を書き込む | |
134 | 44 44 44 44 : R4 | |
135 | - | 00 00 00 00 : R1 |
135 | + | |
136 | E0 FE 01 00 : R0 | |
137 | - | 20 90 27 00 : R1 ; iFile Object |
137 | + | 10 00 00 00 : R2 |
138 | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} | |
139 | - | 00 00 30 00 : R3 ; 0x300000 dump size |
139 | + | |
140 | - | 54 3B 1B 00 : PC ; IFile_Write(0x279000, 0, 0x100000, 0x300000) ; return code LDMFD SP!, {R4-R11,PC} |
140 | + | FC 34 13 00 : PC ; eeprom_read(0x1fee0, 0x279400, 0x10) ; return code LDMFD SP!, {R4,PC} |
141 | - | 00 DA 19 00 : R4 |
141 | + | 44 44 44 44 : R4 |
142 | - | 00 75 01 00 : R5 |
142 | + | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} |
143 | - | 86 DF 21 00 : R6 |
143 | + | 00 94 27 00 : R0 |
144 | - | 00 C1 1A 00 : R7 |
144 | + | 2F F7 1A 00 : PC |
145 | - | 22 DA 1D 00 : R8 |
145 | + | ;RAM:001AF72E LDR R0, [R0] |
146 | ;RAM:001AF730 POP {R4,PC} | |
147 | - | 22 DA 1D 00 : R10 |
147 | + | 44 44 44 44 : R4 |
148 | - | F9 02 10 00 : R11 |
148 | + | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} |
149 | - | 00 00 00 00 : PC : !!!! zero addr !!!! |
149 | + | 02 00 7E 9A : R1 |
150 | - | ; ここでわざと不正終了させている |
150 | + | 58 B2 18 00 : PC |
151 | - | 8C 53 10 00 : LDMFD SP!, {R3,PC} |
151 | + | ;0018B258 CMP R0, R1 |
152 | - | 54 6B 03 00 : R3 |
152 | + | ;0018B25C MOVEQ R0, #1 |
153 | - | 60 3D 14 00 : PC ; |
153 | + | ;0018B260 MOVNE R0, #0 |
154 | ;0018B264 LDMFD SP!, {R4,PC} | |
155 | ⇒ R1(0x9a7e0002)とR0(0x9a7e0000)との比較。ローダのバージョンを見てる | |
156 | - | 59 00 53 00 : |
156 | + | ⇒ eur_jpn_kor(0x9a7e0000), taiwan(0x9a7e0001), china(0x9a7e0002) |
157 | - | 3A 00 2F 00 : |
157 | + | 44 44 44 44 : R4 |
158 | - | 44 00 55 00 : |
158 | + | D4 14 10 00 : PC ; LDMFD SP!, {R4,PC} |
159 | - | 4D 00 50 00 : |
159 | + | 48 01 2B 00 : R4 |
160 | - | 2E 00 42 00 : |
160 | + | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} |
161 | - | 49 00 4E 00 : |
161 | + | E4 EF 22 00 : R0 |
162 | - | 00 00 00 00 : |
162 | + | 18 CF 18 00 : PC |
163 | ;0018CF18 STREQ R0, [R4,#0x24] | |
164 | ;0018CF1C LDMFD SP!, {R4,PC} | |
165 | ⇒ R1 == R0だったら、0x2b0148+0x24=0x2b016cに、0x22efe4を書き込む | |
166 | 44 44 44 44 : R4 | |
167 | 08 30 10 00 : PC ; LDMFD SP!, {R4-R12,PC} | |
168 | E5 04 21 00 : R4 | |
169 | 7C CF 2C 00 : R5 | |
170 | 00 47 18 00 : R6 | |
171 | 00 64 11 00 : R7 | |
172 | 00 43 1B 00 : R8 | |
173 | 00 32 11 00 : R9 | |
174 | 00 B8 07 00 : R10 | |
175 | 30 E6 21 00 : R11 | |
176 | F9 02 10 00 : R12 | |
177 | 28 43 1E 00 : PC | |
178 | ;001E4328 LDMFD SP!, {R4-R6,LR} | |
179 | ;001E432C BX R12 | |
180 | 44 44 44 44 : R4 | |
181 | 55 55 55 55 : R5 | |
182 | 66 66 66 66 : R6 | |
183 | F9 02 10 00 : LR | |
184 | ;001002F8 POP {PC} | |
185 | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} | |
186 | A8 7D 2B 00 : R0 | |
187 | 4C 9A 19 00 : sub_199a48(0x2b7da8) ; return code | |
188 | ;00199A8C LDMFD SP!, {R4-R8} | |
189 | ;00199A90 BX LR | |
190 | ;001002F8 POP {PC} | |
191 | ----------------------------------------------------------------------- | |
192 | AESの鍵の設定くさい | |
193 | ----------------------------------------------------------------------- | |
194 | RAM:00199A4C MOV R1, #0 | |
195 | RAM:00199A50 STR R1, [R0,#0x48] | |
196 | RAM:00199A54 STR R1, [R0,#0x4C] | |
197 | RAM:00199A58 LDR R2, =0x6A09E667 | |
198 | RAM:00199A5C LDR R3, =0xBB67AE85 | |
199 | RAM:00199A60 LDR R12, =0x3C6EF372 | |
200 | RAM:00199A64 STR R1, [R0,#0x44] | |
201 | RAM:00199A68 ADD R1, R0, #0x50 | |
202 | RAM:00199A6C LDR R4, =0xA54FF53A | |
203 | RAM:00199A70 LDR R5, =0x510E527F | |
204 | RAM:00199A74 LDR R6, =0x9B05688C | |
205 | RAM:00199A78 LDR R7, =0x1F83D9AB | |
206 | RAM:00199A7C LDR R8, =0x5BE0CD19 | |
207 | RAM:00199A80 ADD R0, R0, #0x5C | |
208 | RAM:00199A84 STMIA R1, {R2,R3,R12} | |
209 | RAM:00199A88 STMIA R0, {R4-R8} | |
210 | RAM:00199A8C LDMFD SP!, {R4-R8} | |
211 | RAM:00199A90 BX LR | |
212 | ----------------------------------------------------------------------- | |
213 | 84 0D 24 00 : R4 | |
214 | 00 91 00 00 : R5 | |
215 | 1A DC 2D 00 : R6 | |
216 | 00 D6 05 00 : R7 | |
217 | 3E 04 17 00 : R8 | |
218 | B9 F2 10 00 : PC ; POP {R0,R2,PC} | |
219 | A8 7D 2B 00 : R0 | |
220 | 70 00 00 00 : R2 | |
221 | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} | |
222 | 50 62 70 00 : R1 | |
223 | 38 62 1B 00 : sub_1b622c(0x2b7da8, 0x706250, 0x70); return code LDMFD SP!, {R4-R8,PC} | |
224 | 84 0D 24 00 : R4 | |
225 | 00 C0 16 00 : R5 | |
226 | 00 85 0F 00 : R6 | |
227 | 12 C0 2A 00 : R7 | |
228 | 7E 6D 1F 00 : R8 | |
229 | 8C 3D 14 00 : PC ; LDMFD SP!, {R0,PC} | |
230 | A8 7D 2B 00 : R0 | |
231 | C4 4F 1C 00 : PC ; LDMFD SP!, {R1,PC} | |
232 | 48 7E 2B 00 : R1 | |
233 | D8 99 19 00 : sub_1999d4(0x2b7da8, 0x2b7e48); return code LDMFD SP!, {R4-R6,PC} | |
234 | 68 8F 10 00 : R4 | |
235 | 00 8C 00 00 : R5 | |
236 | 86 EB 24 00 : R6 | |
237 | 9B 44 1B 00 : PC ; POP {R0-R4,R7,PC} | |
238 | 48 7E 2B 00 : R0 | |
239 | BC 4C 14 00 : R1 | |
240 | 88 01 2B 00 : R2 | |
241 | 20 7C 00 00 : R3 | |
242 | C4 4F 1C 00 : R4 ; LDMFD SP!, {R1,PC} | |
243 | 77 77 77 77 : R7 | |
244 | AC EF 22 00 : sub_22efa8(0x2b7e48, 0x144cbc, 0x2b0188, 0x7c20) ; return code LDMFD SP!, {R4-R8,PC} | |
245 | ; china版では、0x22efe4にパッチされる | |
246 | ; ここで、0x2b0188~0x2b7da8のコードを復号化する | |
247 | 88 5C 10 00 : R4 | |
248 | 00 00 0E 00 : R5 | |
249 | 90 03 25 00 : R6 | |
250 | C0 FA 1E 00 : R7 | |
251 | 9B 44 1B 00 : R8 | |
252 | F9 02 10 00 : PC ; POP {PC} |