Advisory Details

September 29th, 2010

IBM TSM FastBack Server ActivateLTScriptReply Remote Code Execution Vulnerability

ZDI-10-181
ZDI-CAN-660

CVE ID
CVSS SCORE 10.0, AV:N/AC:L/Au:N/C:C/I:C/A:C
AFFECTED VENDORS IBM
AFFECTED PRODUCTS Tivoli Storage Manager FastBack
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['9866']. 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 IBM Tivoli FastBack Server. Authentication is not required to exploit this vulnerability.

The specific flaw exists within FastBackServer.exe which listens by default on tcp port 11406. The issue is due to a memcpy within the _AGI_S_ActivateLTScriptReply function. The process trusts a user-supplied length and copies user-supplied data to a fixed length buffer located on the stack. Successful exploitation leads to remote code execution under the context of the fastback server.

ADDITIONAL DETAILS

http://www.ibm.com/support/docview.wss?uid=swg21443820
Issue 2


DISCLOSURE TIMELINE
  • 2010-01-22 - Vulnerability reported to vendor
  • 2010-09-29 - Coordinated public release of advisory
CREDIT Sebastian Apelt (www.siberas.de)
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