Advisory Details

January 27th, 2011

Symantec AMS Intel Alert Handler Modem String Parsing Remote Code Execution Vulnerability

ZDI-11-030
ZDI-CAN-530

CVE ID CVE-2010-0111
CVSS SCORE 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)
AFFECTED VENDORS Symantec
AFFECTED PRODUCTS Alert Management System
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 9415. 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 Symantec Alert Management System. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the pagehndl.dll module while processing data sent from the msgsys.exe process which listens by default on TCP port 38292. The DLL allocates a fixed length stack buffer and subsequently copies a user-supplied modem string without validating the size. By supplying a large enough value this buffer can be overflowed leading to arbitrary code execution under the context of the vulnerable daemon.

ADDITIONAL DETAILS 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&pvid=security_advisory&year=2011&suid=20110126_00
DISCLOSURE TIMELINE
  • 2009-07-14 - Vulnerability reported to vendor
  • 2011-01-27 - Coordinated public release of advisory
CREDIT Anonymous
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