Advisory Details

October 18th, 2011

Cisco Unified Service Monitor brstart sm_read_string_length Remote Code Execution Vulnerability

ZDI-11-292
ZDI-CAN-1258

CVE ID	CVE-2011-2738
CVSS SCORE	10.0, AV:N/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Cisco EMC
AFFECTED PRODUCTS	Unified Service Monitor ApplicationXtender Workflow
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['11466']. 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 Cisco Unified Service Monitor due to bundled EMC SMARTS application server. Authentication is not required to exploit this vulnerability. The flaw exists within the brstart.exe service which listens by default on TCP port 9002. When handling the authentication portion of a SMARTS request the process extracts a user provided value to allocate a buffer via sm_read_string_length then blindly copies user supplied data into this buffer on the heap. A remote attacker can exploit this vulnerability to execute arbitrary code under the context of the service.
ADDITIONAL DETAILS	Cisco has issued an update to correct this vulnerability. More details can be found at: http://www.cisco.com/warp/public/707/cisco-sa-20110914-lms.shtml EMC has issued an update to correct this vulnerability. More details can be found at: http://www.securityfocus.com/archive/1/519646/30/0/threaded
DISCLOSURE TIMELINE	2011-06-07 - Vulnerability reported to vendor 2011-10-18 - Coordinated public release of advisory
CREDIT	AbdulAziz Hariri

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