OSEC

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From: Aramis Orlando (aramiseasynet.ro)
Date: Sat Feb 16 2002 - 21:06:29 CST

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    ('binary' encoding is not supported, stored as-is) Well .. once again we proved that the coders are to
    busy to look at they`re code...
    I discovered a bug on telnetd...
    what this :
    ======================================
    =========
    [rootlocalhost telnet]# telnet 127.0.0.1 -l "`perl -
    e 'printf "A"x9000'`"
    Trying 127.0.0.1...
    Connected to localhost.localdomain (127.0.0.1).
    Escape character is '^]'.
    Segmentation fault (core dumped)
    [rootlocalhost telnet]#
    ======================================
    =========
    gdb output :
    (gdb) info registers
    eax 0x1 1
    ecx 0x401eff00 1075773184
    edx 0x807d398 134730648
    ebx 0x401f19e4 1075780068
    esp 0xbfffd3e8 0xbfffd3e8
    ebp 0xbfffd410 0xbfffd410
    esi 0x41414140 1094795584
    edi 0x807d190 134730128
    eip 0x40146df0 0x40146df0
    eflags 0x10202 66050
    cs 0x23 35
    ss 0x2b 43
    ds 0x2b 43
    es 0x2b 43
    fs 0x2b 43
    gs 0x2b 43
    fctrl 0x0 0
    fstat 0x0 0
    ftag 0x0 0
    fiseg 0x0 0
    fioff 0x0 0
    foseg 0x0 0
    fooff 0x0 0
    fop 0x0 0
    (gdb)
    ======================================
    ==
    but we can`t write a local exploit because :
    [rootlocalhost telnet]# ls -al `which telnet`
    -rwxr-xr-x 1 root root 130956 Mar 30
    2001 /usr/kerberos/bin/telnet
    [rootlocalhost telnet]#
    ======================================
    ==
    --==Aramis==--