[29902] in bugtraq
SonicWall Pro DoS?
daemon@ATHENA.MIT.EDU (Greg Smith)
Fri Apr 25 12:02:48 2003
Date: 24 Apr 2003 23:04:13 -0000
Message-ID: <20030424230413.29782.qmail@www.securityfocus.com>
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From: Greg Smith <gsmith@cybercrews.com>
To: bugtraq@securityfocus.com
Came across an apparent problem on a SonicWall Pro running firmware
version 6.4.0.1 ROM version 5.0.1.0 during a vulnerability assessment and
couldn't find any other postings on this problem so fwiw.. the problem
occurs when sending a large HTTP POST to the inside interface - may affect
others just didn't test as the outside interface was blocked. I was able
to confirm this problem using two separate Nessus plugins (10012 and
10687). The behavior of the firewall suggests a buffer overflow but since
I'm not familiar with the internals of this system it's just a guess. 15-
20 seconds after sending the POST to the firewall the firewall goes
through a reset cycle. This delay suggests to me a section of code that is
being overwritten. At the very least, this is a Denial of Service problem.
Vendor was notified of the problem.
