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vulnerable code?

 
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vulnerable code?
Apples
28 Oct, 2007 - 07:16 PM
Post #1

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Joined: 15 Nov, 2006
Posts: 21


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i wrote a simple copy program, and checked it over, but found no vulnerabilities. before using this in an application i'm working on, i was hoping that someone else could take a look and make sure nothing i've done is insecure. thanks! smile.gif

CODE

#include <stdio.h>

int main(int argc, char *argv[])
{
    if(argc != 3)
    {
        printf("usage: %s [source] [dest]\n", argv[0]);
        exit(1);
    }

    char x;
    FILE *file[2];
    file[0] = fopen(argv[1],"r+");
    file[1] = fopen(argv[2],"w+");

    for(x = 0; x < 2; x++)
    {
        if(file[x] == NULL)
        {
            printf("error opening file.\n");
            exit(1);
        }
    }

    do
    {
        x = fgetc(file[0]);
        fputc(x,file[1]);
    }
    while(x != EOF);

    for(x = 0; x < 2; x++)
        fclose(file[x]);

    return 0;
}
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NickDMax
RE: Vulnerable Code?
28 Oct, 2007 - 07:37 PM
Post #2

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What do you mean by "vulnerable" and "insecure"?
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Apples
RE: Vulnerable Code?
29 Oct, 2007 - 07:50 AM
Post #3

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something like a buffer overflow that allows arbitrary execution of code.
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