ZDI-11-106: Novell Netware NWFTPD.NLM DELE Remote Code Execution Vulnerability

ZDI-11-106: Novell Netware NWFTPD.NLM DELE Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-106

March 18, 2011

– CVE ID:
CVE-2010-4228

– CVSS:
9, (AV:N/AC:L/Au:S/C:C/I:C/A:C)

– 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 10659.
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. Authentication is required
to exploit this vulnerability.

The flaw exists within NWFTPD.NLM. When handling the argument provided
to the DELE command the application copies user supplied data to a fixed
length stack buffer. A remote attacker can exploit this vulnerability to
execute arbitrary code under the context of the super user.

– Vendor Response:
Novell has issued an update to correct this vulnerability. More
details can be found at:

http://download.novell.com/Download?buildid=Ax6AbxwGLTs~

– Disclosure Timeline:
2010-09-22 - Vulnerability reported to vendor
2011-03-18 - Coordinated public release of advisory

– Credit:
This vulnerability was discovered by:
* Francis Provencher for Protek Research Lab's

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