Date: Tue, 8 Feb 2011 18:44:03 +0000
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>, 
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-11-062: Multiple Vendor Calendar Manager RPC
 Service Remote Code Execution Vulnerability

ZDI-11-062: Multiple Vendor Calendar Manager RPC Service Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-062

February 8, 2011

-- CVE ID:
CVE-2010-4435

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

-- Affected Vendors:
Hewlett-Packard
IBM
Sun Microsystems

-- Affected Products:
Hewlett-Packard HP-UX
IBM AIX
Sun Microsystems Solaris 10

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9267. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of the Calendar Manager RPC Service.
Authentication is not required to exploit this vulnerability.

The specific flaw exists within the CMSD server (rpc.cmsd) which listens
by default on UDP port 32768. The process does not properly handle large
XDR-encoded ASCII strings to RPC call 10 followed by RPC call 6. This
can be abused by an attacker to overflow a buffer on the remote host.
Successful exploitation can result in arbitrary code execution.

-- Vendor Response:
HP:
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02702395

IBM: 
http://aix.software.ibm.com/aix/efixes/security/cmsd_advisory.asc
IBM is not providing credits, as our system at that time and for this
brand does not accept credits.

Oracle: 
http://www.oracle.com/technetwork/topics/security/cpujan2011-194091.html

-- Disclosure Timeline:
2009-08-20 - Vulnerability reported to vendor
2011-02-08 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Rodrigo Rubira Branco (BSDaemon)

-- 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/

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