IBM TSM FastBack Mount Service Arbitrary Overwrite Remote Code Execution Vulnerability

2010.10.07
Credit: ZDI
Risk: High
Local: No
Remote: Yes
CWE: CWE-94


CVSS Base Score: 10/10
Impact Subscore: 10/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

ZDI-10-179: IBM TSM FastBack Mount Service Arbitrary Overwrite Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-10-179 September 29, 2010 -- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C) -- Affected Vendors: IBM -- Affected Products: IBM Tivoli Storage Manager -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 9966. 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 IBM Tivoli Storage Manager Fastback. Authentication is not required to exploit this vulnerability. The specific flaw exists within the Mount service (FastBackMount.exe). This process listens by default on UDP port 30005. This process writes the value 0x01 to the address specified by the second DWORD from a packet received to it's UDP port. An attacker can exploit this behavior to execute arbitrary code by making several requests to this service. -- Vendor Response: IBM states: http://www-01.ibm.com/support/docview.wss?uid=swg21443820 Issue 1 -- Disclosure Timeline: 2010-01-06 - Vulnerability reported to vendor 2010-09-29 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * Sebastian Apelt (www.siberas.de) -- 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/ Follow the ZDI on Twitter: http://twitter.com/thezdi

References:

http://zerodayinitiative.com/advisories/ZDI-10-179/
http://www.securityfocus.com/archive/1/archive/1/514068/100/0/threaded
http://www.ibm.com/support/docview.wss?uid=swg21443820
http://www-01.ibm.com/support/docview.wss?uid=swg1IC69883


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