mirror of
https://github.com/QuasarApp/pe-parse.git
synced 2025-04-29 22:04:33 +00:00
6d9bb17e3f
I've noticed this in one (otherwise valid) EFI image. What happens is the section specifies an invalid PointerToRawData, which the bounded buffer abstraction catches and returns NULL. However, the SizeOfRawData is still in the structure (and probably invalid too). I saw two ways to fix this. If sectionData ends up being NULL we can set SizeOfRawData to 0, but that would be truncating what is otherwise specified in the file. The other option is to teach dump-prog and pepy about this and adjust accordingly. This involves checking for a data being a NULL pointer in dump-prog when printing sections. In pepy it required roughly the same check. I went with option 2.
235 lines
8.0 KiB
C++
235 lines
8.0 KiB
C++
/*
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The MIT License (MIT)
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Copyright (c) 2013 Andrew Ruef
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <iostream>
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#include <sstream>
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#include "parse.h"
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using namespace std;
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using namespace boost;
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int printExps(void *N, VA funcAddr, std::string &mod, std::string &func) {
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cout << "EXP: ";
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cout << mod;
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cout << "!";
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cout << func;
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cout << ": 0x";
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cout << to_string<uint32_t>(funcAddr, hex);
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cout << endl;
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return 0;
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}
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int printImports(void *N, VA impAddr, string &modName, string &symName) {
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cout << "0x" << to_string<uint32_t>(impAddr, hex);
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cout << " " << modName << "!" << symName;
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cout << endl;
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return 0;
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}
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int printRelocs(void *N, VA relocAddr, reloc_type type) {
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cout << "TYPE: ";
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switch(type) {
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case ABSOLUTE:
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cout << "ABSOLUTE";
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break;
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case HIGH:
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cout << "HIGH";
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break;
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case LOW:
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cout << "LOW";
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break;
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case HIGHLOW:
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cout << "HIGHLOW";
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break;
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case HIGHADJ:
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cout << "HIGHADJ";
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break;
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case MIPS_JMPADDR:
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cout << "MIPS_JMPADDR";
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break;
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case MIPS_JMPADDR16:
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cout << "MIPS_JMPADD16";
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break;
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case DIR64:
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cout << "DIR64";
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break;
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}
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cout << " VA: 0x" << to_string<VA>(relocAddr, hex) << endl;
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return 0 ;
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}
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int printRsrc(void *N,
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resource r)
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{
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if (r.type_str.length())
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cout << "Type (string): " << r.type_str << endl;
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else
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cout << "Type: 0x" << to_string<uint32_t>(r.type, hex) << endl;
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if (r.name_str.length())
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cout << "Name (string): " << r.name_str << endl;
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else
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cout << "Name: 0x" << to_string<uint32_t>(r.name, hex) << endl;
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if (r.lang_str.length())
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cout << "Lang (string): " << r.lang_str << endl;
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else
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cout << "Lang: 0x" << to_string<uint32_t>(r.lang, hex) << endl;
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cout << "Codepage: 0x" << to_string<uint32_t>(r.codepage, hex) << endl;
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cout << "RVA: " << to_string<uint32_t>(r.RVA, dec) << endl;
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cout << "Size: " << to_string<uint32_t>(r.size, dec) << endl;
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return 0;
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}
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int printSecs(void *N,
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VA secBase,
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string &secName,
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image_section_header s,
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bounded_buffer *data)
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{
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cout << "Sec Name: " << secName << endl;
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cout << "Sec Base: 0x" << to_string<uint64_t>(secBase, hex) << endl;
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if (data)
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cout << "Sec Size: " << to_string<uint64_t>(data->bufLen, dec) << endl;
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else
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cout << "Sec Size: 0" << endl;
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return 0;
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}
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int main(int argc, char *argv[]) {
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if(argc == 2) {
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parsed_pe *p = ParsePEFromFile(argv[1]);
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if(p != NULL) {
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//print out some things
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#define DUMP_FIELD(x) \
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cout << "" #x << ": 0x"; \
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cout << to_string<uint32_t>(p->peHeader.nt.x, hex) << endl;
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#define DUMP_DEC_FIELD(x) \
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cout << "" #x << ": "; \
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cout << to_string<uint32_t>(p->peHeader.nt.x, dec) << endl;
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DUMP_FIELD(Signature);
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DUMP_FIELD(FileHeader.Machine);
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DUMP_FIELD(FileHeader.NumberOfSections);
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DUMP_DEC_FIELD(FileHeader.TimeDateStamp);
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DUMP_FIELD(FileHeader.PointerToSymbolTable);
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DUMP_DEC_FIELD(FileHeader.NumberOfSymbols);
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DUMP_FIELD(FileHeader.SizeOfOptionalHeader);
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DUMP_FIELD(FileHeader.Characteristics);
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if (p->peHeader.nt.OptionalMagic == NT_OPTIONAL_32_MAGIC) {
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DUMP_FIELD(OptionalHeader.Magic);
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DUMP_DEC_FIELD(OptionalHeader.MajorLinkerVersion);
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DUMP_DEC_FIELD(OptionalHeader.MinorLinkerVersion);
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DUMP_FIELD(OptionalHeader.SizeOfCode);
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DUMP_FIELD(OptionalHeader.SizeOfInitializedData);
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DUMP_FIELD(OptionalHeader.SizeOfUninitializedData);
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DUMP_FIELD(OptionalHeader.AddressOfEntryPoint);
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DUMP_FIELD(OptionalHeader.BaseOfCode);
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DUMP_FIELD(OptionalHeader.BaseOfData);
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DUMP_FIELD(OptionalHeader.ImageBase);
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DUMP_FIELD(OptionalHeader.SectionAlignment);
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DUMP_FIELD(OptionalHeader.FileAlignment);
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DUMP_DEC_FIELD(OptionalHeader.MajorOperatingSystemVersion);
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DUMP_DEC_FIELD(OptionalHeader.MinorOperatingSystemVersion);
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DUMP_DEC_FIELD(OptionalHeader.Win32VersionValue);
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DUMP_FIELD(OptionalHeader.SizeOfImage);
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DUMP_FIELD(OptionalHeader.SizeOfHeaders);
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DUMP_FIELD(OptionalHeader.CheckSum);
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DUMP_FIELD(OptionalHeader.Subsystem);
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DUMP_FIELD(OptionalHeader.DllCharacteristics);
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DUMP_FIELD(OptionalHeader.SizeOfStackReserve);
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DUMP_FIELD(OptionalHeader.SizeOfStackCommit);
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DUMP_FIELD(OptionalHeader.SizeOfHeapReserve);
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DUMP_FIELD(OptionalHeader.SizeOfHeapCommit);
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DUMP_FIELD(OptionalHeader.LoaderFlags);
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DUMP_DEC_FIELD(OptionalHeader.NumberOfRvaAndSizes);
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} else {
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DUMP_FIELD(OptionalHeader64.Magic);
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DUMP_DEC_FIELD(OptionalHeader64.MajorLinkerVersion);
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DUMP_DEC_FIELD(OptionalHeader64.MinorLinkerVersion);
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DUMP_FIELD(OptionalHeader64.SizeOfCode);
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DUMP_FIELD(OptionalHeader64.SizeOfInitializedData);
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DUMP_FIELD(OptionalHeader64.SizeOfUninitializedData);
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DUMP_FIELD(OptionalHeader64.AddressOfEntryPoint);
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DUMP_FIELD(OptionalHeader64.BaseOfCode);
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DUMP_FIELD(OptionalHeader64.ImageBase);
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DUMP_FIELD(OptionalHeader64.SectionAlignment);
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DUMP_FIELD(OptionalHeader64.FileAlignment);
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DUMP_DEC_FIELD(OptionalHeader64.MajorOperatingSystemVersion);
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DUMP_DEC_FIELD(OptionalHeader64.MinorOperatingSystemVersion);
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DUMP_DEC_FIELD(OptionalHeader64.Win32VersionValue);
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DUMP_FIELD(OptionalHeader64.SizeOfImage);
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DUMP_FIELD(OptionalHeader64.SizeOfHeaders);
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DUMP_FIELD(OptionalHeader64.CheckSum);
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DUMP_FIELD(OptionalHeader64.Subsystem);
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DUMP_FIELD(OptionalHeader64.DllCharacteristics);
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DUMP_FIELD(OptionalHeader64.SizeOfStackReserve);
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DUMP_FIELD(OptionalHeader64.SizeOfStackCommit);
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DUMP_FIELD(OptionalHeader64.SizeOfHeapReserve);
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DUMP_FIELD(OptionalHeader64.SizeOfHeapCommit);
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DUMP_FIELD(OptionalHeader64.LoaderFlags);
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DUMP_DEC_FIELD(OptionalHeader64.NumberOfRvaAndSizes);
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}
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#undef DUMP_FIELD
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#undef DUMP_DEC_FIELD
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cout << "Imports: " << endl;
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IterImpVAString(p, printImports, NULL);
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cout << "Relocations: " << endl;
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IterRelocs(p, printRelocs, NULL);
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cout << "Sections: " << endl;
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IterSec(p, printSecs, NULL);
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cout << "Exports: " << endl;
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IterExpVA(p, printExps, NULL);
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//read the first 8 bytes from the entry point and print them
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VA entryPoint;
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if(GetEntryPoint(p, entryPoint)) {
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cout << "First 8 bytes from entry point (0x";
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cout << to_string<VA>(entryPoint, hex);
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cout << "):" << endl;
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for(int i = 0; i < 8; i++) {
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::uint8_t b;
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ReadByteAtVA(p, i+entryPoint, b);
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cout << " 0x" << to_string<uint32_t>(b, hex);
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}
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cout << endl;
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}
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cout << "Resources: " << endl;
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IterRsrc(p, printRsrc, NULL);
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DestructParsedPE(p);
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}
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else {
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cout << "Error: " << GetPEErr() << " (" << GetPEErrString() << ")" << endl;
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cout << "Location: " << GetPEErrLoc() << endl;
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}
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}
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return 0;
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}
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