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ZDI-11-029: Symantec AMS Intel Alert Handler Service CreateProcess Remote Code Execution Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Thu, 27 Jan 2011 11:52:49 -0600

ZDI-11-029: Symantec AMS Intel Alert Handler Service CreateProcess Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-029

January 27, 2011

-- CVE ID:
CVE-2010-111

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors:
Symantec

-- Affected Products:
Symantec Alert Management System

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9422.
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 Symantec Alert Management System.
Authentication is not required to exploit this vulnerability.

The specific flaw exists within the HDNLRSVC.EXE service while
processing data sent from the msgsys.exe process which listens by
default on TCP port 38292. This process passes user-supplied data
directly to a CreateProcessA call. By supplying a UNC path to a
controlled binary a remote attacker can execute arbitrary code under the
context of the vulnerable daemon.

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

http://www.symantec.com/business/security_response/securityupdates/detail.jsp?fid=security_advisory&amp;pvid=security_advisory&amp;year=2011&amp;suid=20110126_00

-- Disclosure Timeline:
2010-07-14 - Vulnerability reported to vendor
2011-01-27 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

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