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Zero Day Initiative Advisory 11-236

Zero Day Initiative Advisory 11-236
Posted Jul 19, 2011
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 11-236 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of EMC Documentum eRoom Indexing Server. Authentication is not required to exploit this vulnerability. The specific flaw exists within the bundled implementation of OpenText's HummingBird Connector. When parsing a particular packet received from a TCP connection, the application will attempt to copy part of the packet's contents into a buffer located on the stack. Due to not completely accommodating for the size of the data in the packet, the application will overwrite variables positioned after the buffer. This can lead to code execution under the context of the server.

tags | advisory, remote, arbitrary, tcp, code execution
advisories | CVE-2011-1741
MD5 | 7cbb9e158f54922fc32daaa083f5a247

Zero Day Initiative Advisory 11-236

Change Mirror Download
ZDI-11-236: EMC Documentum eRoom Indexing Server OpenText HummingBird Connector Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-236

July 18, 2011

-- CVE ID:
CVE-2011-1741

-- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

-- Affected Vendors:
EMC

-- Affected Products:
EMC Documentum eRoom

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11443.
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 EMC Documentum eRoom Indexing Server.
Authentication is not required to exploit this vulnerability.

The specific flaw exists within the bundled implementation of OpenText's
HummingBird Connector. When parsing a particular packet received from a
TCP connection, the application will attempt to copy part of the
packet's contents into a buffer located on the stack. Due to not
completely accommodating for the size of the data in the packet, the
application will overwrite variables positioned after the buffer. This
can lead to code execution under the context of the server.

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

http://www.securityfocus.com/archive/1/518897/30/0/threaded

-- Disclosure Timeline:
2011-01-21 - Vulnerability reported to vendor
2011-07-18 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* Stephen Fewer of Harmony Security (www.harmonysecurity.com)

-- 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

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