IBM Tivoli Storage Manager Express CAD Service Buffer Overflow Vulnerability

Advisory Content :

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

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sender via reply e-mail or forwarding to 3Com at postmaster (at) 3com (dot)
com. [email concealed]

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IBM Tivoli Storage Manager Express CAD Service Buffer Overflow Vulnerability