Advisory Details

December 13th, 2010

Novell ZENworks Desktop Management Linux TFTPD Remote Code Execution Vulnerability

CVE ID
CVSS SCORE	9.0, AV:N/AC:L/Au:N/C:P/I:P/A:C
AFFECTED VENDORS	Novell
AFFECTED PRODUCTS	Zenworks
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['2132']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Novell Zenworks Desktop Management. Authentication is not required to exploit this vulnerability. The flaw exists within the tftpd server component which listens by default on UDP port 69. When handling the filename in a Read Request (0x01) packet type the process blindly copies user supplied data into a fixed-length buffer on the stack. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the tftpd server process.
ADDITIONAL DETAILS	Fixed in ZENworks 7 Desktop Management Support Pack 1 Interim Release 4 Hot Patch 5: http://download.novell.com/Download?buildid=r9kcCymJ7Os Documented in TID 7007321 http://www.novell.com/support/dynamickc.do?cmd=show&forward=nonthreadedKC&docType=kc&externalId=7007321&sliceId=1
DISCLOSURE TIMELINE	2010-07-20 - Vulnerability reported to vendor 2010-12-13 - Coordinated public release of advisory
CREDIT	Francis Provencher for Protek Researchh Lab's

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