bugtraq - ZDI-10-062: Novell Netware NWFTPD RMD/RNFR/DELE Argument Parsing Remote Code Execution Vulnerabilities

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Message-ID: <EE499D69B3D0714590B6FE9762B0461104B708686F@emb01.unity.local>
Date: Mon, 5 Apr 2010 14:27:01 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-062: Novell Netware NWFTPD RMD/RNFR/DELE Argument Parsing
 Remote Code Execution Vulnerabilities

ZDI-10-062: Novell Netware NWFTPD RMD/RNFR/DELE Argument Parsing Remote Code Execution Vulnerabilities
http://www.zerodayinitiative.com/advisories/ZDI-10-062
April 5, 2010

-- CVE ID:
CVE-2010-0625

-- Affected Vendors:
Novell

-- Affected Products:
Novell Netware

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6331. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Novell Netware NWFTPD daemon. Authentication
or default anonymous access is required to exploit this vulnerability.

The specific flaw exists when parsing malformed arguments to the verbs
RMD, RNFR, and DELE. Overly long parameters  will result in stack based
buffer overflows which can be leveraged to execute arbitrary code.

-- Vendor Response:
Novell states:
A public fix for this issue has been released in download nwftpd16.zip,
available at http://download.novell.com/patch/finder/

-- Disclosure Timeline:
2008-08-26 - Vulnerability reported to vendor
2010-04-05 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Nick DeBaggis
    * Francis Provencher

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