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, (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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