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Zero Day Initiative Advisory 12-012

Zero Day Initiative Advisory 12-012
Posted Jan 13, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-012 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of McAfee Security-as-a-Service. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaws exists within myCIOScn.dll. MyCioScan.Scan.ShowReport() will accept commands that are passed to a function that simply executes them without authentication. This can be leveraged by a malicious attacker to execute arbitrary code within the context of the browser.

tags | advisory, remote, arbitrary
MD5 | 440e1740ad15d999f9674c83d345b2e6

Zero Day Initiative Advisory 12-012

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Hash: SHA1

ZDI-12-012 : (0Day) McAfee SaaS myCIOScn.dll ShowReport Method Remote
Command Execution
http://www.zerodayinitiative.com/advisories/ZDI-12-012
January 12, 2012

- -- CVE ID:


- -- CVSS:
9, AV:N/AC:L/Au:N/C:P/I:P/A:C

- -- Affected Vendors:

McAfee



- -- Affected Products:

McAfee Security-as-a-Service



- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11710.
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 McAfee Security-as-a-Service. User
interaction is required to exploit this vulnerability in that the target
must visit a malicious page or open a malicious file.

The specific flaws exists within myCIOScn.dll.
MyCioScan.Scan.ShowReport() will accept commands that are passed to a
function that simply executes them without authentication. This can be
leveraged by a malicious attacker to execute arbitrary code within the
context of the browser.

- -- Vendor Response:



- -- Mitigation:
The killbit can be set on this control to disable scripting within
Internet Explorer by modifying the data value of the Compatibilty Flags
DWORD within the following location in the registry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX
Compatibility\209EBDEE-065C-11D4-A6B8-00C04F0D38B7

If the Compatibility Flags value is set to 0x00000400 the control can no
longer be instantiated inside the browser. For more information, please
see: http://support.microsoft.com/kb/240797


- -- Disclosure Timeline:
2011-04-01 - Vulnerability reported to vendor

2012-01-12 - 0Day advisory released in accordance with the ZDI 180 day
deadline policy



- -- Credit:
This vulnerability was discovered by:

* Andrea Micalizzi aka rgod



- -- 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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