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Zero Day Initiative Advisory 07-051

Zero Day Initiative Advisory 07-051
Posted Sep 9, 2007
Authored by Tipping Point, Sebastian Apelt | Site zerodayinitiative.com

A vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Trend Micro Server Protect. Authentication is not required to exploit this vulnerability. The specific flaw exists within the routine TMregChange() exported by TMReg.dll which is reachable through the custom protocol subcode "\x15\x00\x00\x00". The TCP socket bound to port 5005 receives user-supplied data which is copied without proper bounds checking to a stack-based buffer. Thereby resulting in an exploitable condition.

tags | advisory, remote, arbitrary, tcp, protocol
advisories | CVE-2007-4731
SHA-256 | a7262a963930d57504f98d7fcf0255177975b66c3efc6c0afbf9fb628615c4ff

Zero Day Initiative Advisory 07-051

Change Mirror Download
ZDI-07-051: Trend Micro ServerProtect TMregChange() Stack Overflow
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-051.html
September 7, 2007

-- CVE ID:
CVE-2007-4731

-- Affected Vendor:
Trend Micro

-- Affected Products:
ServerProtect v5.58

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since September 7, 2007 by Digital Vaccine protection
filter ID 5482. 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 Trend Micro Server Protect. Authentication
is not required to exploit this vulnerability.

The specific flaw exists within the routine TMregChange() exported by
TMReg.dll which is reachable through the custom protocol subcode
"\x15\x00\x00\x00". The TCP socket bound to port 5005 receives
user-supplied data which is copied without proper bounds checking to a
stack-based buffer. Thereby resulting in an exploitable condition.

-- Vendor Response:
Trend Micro has issued an update to correct this vulnerability. More
details can be found at:

http://www.trendmicro.com/ftp/documentation/readme/spnt_558_win_en_securitypatch4_readme.txt

-- Disclosure Timeline:
2007.07.17 - Vulnerability reported to vendor
2007.09.07 - Digital Vaccine released to TippingPoint customers
2007.09.07 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by Sebastian Apelt
(webmaster@buzzworld.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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