@RISK is the SANS community's consensus bulletin summarizing the most important vulnerabilities and exploits identified during the past week and providing guidance on appropriate actions to protect your systems (PART I). It also includes a comprehensive list of all new vulnerabilities discovered in the past week (PART II).
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TRAINING UPDATE
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Part I for this issue has been compiled by Josh Bronson at TippingPoint, a division of 3Com, as a by-product of that company's continuous effort to ensure that its intrusion prevention products effectively block exploits using known vulnerabilities. TippingPoint's analysis is complemented by input from a council of security managers from twelve large organizations who confidentially share with SANS the specific actions they have taken to protect their systems. A detailed description of the process may be found at http://www.sans.org/newsletters/cva/#process
Description: Two memory corruption vulnerabilities and a security bypass vulnerability have been reported in Google Chrome. The two memory corruption vulnerabilities are unspecified, but memory corruption vulnerabilities should always be taken seriously since they sometimes allow code execution. The security bypass vulnerability allows Javascript to be executed with the same permissions as a Chrome extension. Javscript is normally run with reduced permissions inside a browser sandbox.
Status: vendor confirmed, updates available
Description: A vulnerability has been reported in HP-UX, SGI IRIX, and IBM AIX that could allow a remote unauthenticated attacker to execute arbitrary code on a target's machine. The problem is in the rpc.pcnfsd daemon, which contains an integer overflow vulnerability. Successful exploitation will result in code executing with root permissions.
Status: vendor confirmed, updates available
Description: Mac OS X is a popular operating system for Apple computers. Two vulnerabilities have been reported in its handling of Java applets. The first issue concerns malicious 'mediaLibImage' objects and the second involves window drawing. A successful attacker can exploit this vulnerability and execute arbitrary code with the permissions of the affected software.
Status: vendor confirmed, updates available
Description: Ziproxy is a non-caching, open-source, lightweight web proxy. Two integer overflow vulnerabilities have been reported in Ziproxy. A remote attacker can exploit this vulnerability by causing the proxy to process malicious JPEG or PNG files. Successful exploitation will result in code execution with the permissions of the Ziproxy server process.
Status: vendor confirmed, updates available
Description: When the Windows "Aero" theme is installed, Microsoft's Canonical Display Driver (cdd.dll) does not properly parse user-mode data. An attacker can exploit this vulnerability by causing his target to use the driver maliciously, for example by sending a malicious image. Code execution is a theoretical possibility, but Microsoft notes that the code is protected by randomization.
Status: vendor confirmed, updates available
Part II -- Comprehensive List of Newly Discovered Vulnerabilities from Qualys (www.qualys.com) Week 22, 2010 This list is compiled by Qualys ( www.qualys.com ) as part of that company's ongoing effort to ensure its vulnerability management web service tests for all known vulnerabilities that can be scanned. As of this week Qualys scans for 9546 unique vulnerabilities. For this special SANS community listing, Qualys also includes vulnerabilities that cannot be scanned remotely. ______________________________________________________________________
(c) 2010. All rights reserved. The information contained in this newsletter, including any external links, is provided "AS IS," with no express or implied warranty, for informational purposes only. In some cases, copyright for material in this newsletter may be held by a party other than Qualys (as indicated herein) and permission to use such material must be requested from the copyright owner.