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求教：gdp调试的时候查看寄存器信息提示 The program has no registers now.怎么解决？
来源: 互联网 发布时间：2017-05-03
本文导语: 源代码是这样的 #include "stdio.h" #include "string.h" char code[]= "x41x41x41x41x41" "x41x41x41x41x41" "x41x41x41x41x41" "x41x41x41" "x41x41x41x41" "x82x84x04x08" "x00"; void copy(const char *input) { char buf[10]; strcpy(buf, input); printf("%s n", buf); } void b...
源代码是这样的
#include "stdio.h"
#include "string.h"
char code[]=
"x41x41x41x41x41"
"x41x41x41x41x41"
"x41x41x41x41x41"
"x41x41x41"
"x41x41x41x41"
"x82x84x04x08"
"x00";
void copy(const char *input)
{
char buf[10];
strcpy(buf, input);
printf("%s n", buf);
}
void bug(void)
{
printf("I shouldn't have appearedn");
}
int main(int argc, char *argv[])
{
copy(code);
return 0;
}
使用gdb调试进行溢出攻击的时候，
(gdb) disasse main
Dump of assembler code for function main:
0x0000000000400603 : push %rbp
0x0000000000400604 : mov %rsp,%rbp
0x0000000000400607 : sub $0x10,%rsp
0x000000000040060b : mov %edi,-0x4(%rbp)
0x000000000040060e : mov %rsi,-0x10(%rbp)
0x0000000000400612 : mov $0x601050,%edi
0x0000000000400617 : callq 0x4005bc
0x000000000040061c : mov $0x0,%eax
0x0000000000400621 : leaveq
0x0000000000400622 : retq
End of assembler dump.
(gdb) info all-registers
The program has no registers now.
求教～THX
#include "stdio.h"
#include "string.h"
char code[]=
"x41x41x41x41x41"
"x41x41x41x41x41"
"x41x41x41x41x41"
"x41x41x41"
"x41x41x41x41"
"x82x84x04x08"
"x00";
void copy(const char *input)
{
char buf[10];
strcpy(buf, input);
printf("%s n", buf);
}
void bug(void)
{
printf("I shouldn't have appearedn");
}
int main(int argc, char *argv[])
{
copy(code);
return 0;
}
使用gdb调试进行溢出攻击的时候，
(gdb) disasse main
Dump of assembler code for function main:
0x0000000000400603 : push %rbp
0x0000000000400604 : mov %rsp,%rbp
0x0000000000400607 : sub $0x10,%rsp
0x000000000040060b : mov %edi,-0x4(%rbp)
0x000000000040060e : mov %rsi,-0x10(%rbp)
0x0000000000400612 : mov $0x601050,%edi
0x0000000000400617 : callq 0x4005bc
0x000000000040061c : mov $0x0,%eax
0x0000000000400621 : leaveq
0x0000000000400622 : retq
End of assembler dump.
(gdb) info all-registers
The program has no registers now.
求教～THX
|
程序还没有． ．当然就没有寄存器啦啦啦啦．你run一下寄存器就出来了
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