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AUSCERT External Security Bulletin Redistribution
ESB-2011.0193
Novell ZenWorks TFTPD Remote Code Execution Vulnerability
18 February 2011
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AusCERT Security Bulletin Summary
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Product: Novell ZenWorks
Publisher: Zero Day Initiative
Operating System: Windows
Netware
Linux variants
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2010-4323
Original Bulletin:
http://www.zerodayinitiative.com/advisories/ZDI-11-089/
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Novell ZenWorks TFTPD Remote Code Execution Vulnerability
ZDI-11-089: February 17th, 2011
CVE ID
CVE-2010-4323
CVSS Score
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Affected Vendors
Novell
Affected Products
Zenworks
TippingPoint IPS Customer Protection
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 Configuration Manager.
Authentication is not required to exploit this vulnerability.
The flaw exists within the novell-tftp.exe component which listens by default
on UDP port 69. When handling a request the process blindly copies user
supplied data into a fixed-length buffer on the heap. A remote attacker can
exploit this vulnerability to execute arbitrary code under the context of the
ZenWorks user.
Vendor Response
Novell has issued an update to correct this vulnerability. More details can
be found at:
http://www.novell.com/support/php/search.do?cmd=displayKC&docType=kc&externalId=7007896&sliceId=2&docTypeID=DT_TID_1_1&dialogID=205671351&stateId=0%200%20205669596
Disclosure Timeline
2010-08-23 - Vulnerability reported to vendor
2011-02-17 - Coordinated public release of advisory
Credit
This vulnerability was discovered by:
Francis Provencher for Protek Researchh Lab's
AbdulAziz Hariri of ThirdEyeTesters
SilentSignal
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