IBM Tivoli Storage Manager Express CAD Service Buffer Overflow Vulnerability

2007.10.01
Risk: High
Local: Yes
Remote: Yes
CWE: CWE-119


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-07-054: IBM Tivoli Storage Manager Express CAD Service Buffer Overflow Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-07-054.html September 24, 2007 -- CVE ID: CVE-2007-4880 -- Affected Vendor: IBM -- Affected Products: Tivoli Storage Manager Express backup clients Tivoli Storage Manager V5.1 backup clients Tivoli Storage Manager V5.2 backup clients Tivoli Storage Manager V5.3 backup clients Tivoli Storage Manager V5.4 backup clients -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability since September 24, 2007 by Digital Vaccine protection filter ID 5351. 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 Storage Manager Express. Authentication is not required to exploit this vulnerability. The specific flaw exists in the dsmcad.exe process bound by default on TCP port 1581. During HTTP header parsing, a host parameter of sufficient length will trigger an overflow through a call to vswprintf(). The call overflows into imported function pointers which are later called. Exploitation of this issue can result in arbitrary code execution. -- Vendor Response: IBM has issued an update to correct this vulnerability. More details can be found at: http://www-1.ibm.com/support/docview.wss?uid=swg21268775 -- Disclosure Timeline: 2007.05.22 - Vulnerability reported to vendor 2007.09.24 - Digital Vaccine released to TippingPoint customers 2007.09.24 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by Sebastian Apelt (webmaster (at) buzzworld (dot) org [email concealed]). -- About the Zero Day Initiative (ZDI): Established by TippingPoint, a division of 3Com, 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. 3Com does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, 3Com 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, 3Com provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is being sent by 3Com for the sole use of the intended recipient(s) and may contain confidential, proprietary and/or privileged information. Any unauthorized review, use, disclosure and/or distribution by any recipient is prohibited. If you are not the intended recipient, please delete and/or destroy all copies of this message regardless of form and any included attachments and notify 3Com immediately by contacting the sender via reply e-mail or forwarding to 3Com at postmaster (at) 3com (dot) com. [email concealed]


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