Date: Mon, 24 Sep 2007 15:17:55 -0700
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	vulnwatch@...nwatch.org, vulndiscuss@...nwatch.org
Subject: ZDI-07-054: IBM Tivoli Storage Manager Express
 CAD Service Buffer Overflow Vulnerability

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@...zworld.org).

-- 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.


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