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Category:   Application (Generic)  >   Novell Client Vendors:   Novell
Novell Client NetIdentity Agent Pointer Dereference Bug Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1021990
SecurityTracker URL:
CVE Reference:   CVE-2009-1350   (Links to External Site)
Updated:  Apr 23 2009
Original Entry Date:  Apr 7 2009
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.2.4 build 1.2.612
Description:   A vulnerability was reported in Novell Client. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted data via a valid IPC$ RPC connection to trigger a pointer dereference in 'xtagent.exe' and execute arbitrary code on the target system. The code will run with the privileges of the target service.

Messages sent via the XTIERRPCPIPE named pipe are affected.

The vendor was notified on October 15, 2008.

Ruben Santamarta reported this vulnerability via TippingPoint.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (1.2.4 build 1.2.612).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (2000), Windows (2003), Windows (XP)

Message History:   None.

 Source Message Contents

Subject:  [Full-disclosure] ZDI-09-016: Novell Client/NetIdentity Agent

ZDI-09-016: Novell Client/NetIdentity Agent Remote Arbitrary Pointer
Dereference Code Execution Vulnerability
April 6, 2009

-- Affected Vendors:

-- Affected Products:
Novell Netware

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Novell Netware. A valid IPC$ connection must
be established in order to exploit this vulnerability.

The specific flaw exists within xtagent.exe during the handling of RPC
messages over the XTIERRPCPIPE named pipe. Insufficient sanity checking
allows remote attackers to dereference an arbitrary pointer which can be
leveraged to execute code under the context of the system user.

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

-- Disclosure Timeline:
2008-10-15 - Vulnerability reported to vendor
2009-04-06 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Ruben Santamarta

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