@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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Announcing New SANS Reading Room Papers! 1. The highly-anticipated SANS 7th Annual Log Management Survey Report is now available in the SANS Reading Room here: http://www.sans.org/info/77184
2. A new survey on network security and resiliency is available in the SANS Reading Room here: http://www.sans.org/info/77189
***************************************************************** TRAINING UPDATE - -- SANS Cyber Guardian 2011, Baltimore, MD, May 15-22, 2011 8 courses. Bonus evening presentations include Windows Exploratory Surgery with Process Hacker and State of the Hack: Stuxnet. 8 courses. http://www.sans.org/cyber-guardian-2011/ - -- SANS Rocky Mountain 2011, Denver, CO, June 25-30, 2011 7 courses. Bonus evening presentations include SANS Hacklab and Why End Users are Your Weakest Link http://www.sans.org/rocky-mountain-2011/ - -- SANSFIRE 2011, Washington, DC, July 15-24, 2011 40 courses. Bonus evening presentations include Ninja developers: Penetration testing and Your SDLC; and Are Your Tools Ready for IPv6? http://www.sans.org/sansfire-2011/ - -- SANS Boston 2011, Boston, MA, August 8-15, 2011 12 courses. Bonus evening presentations include Cost Effectively Implementing PCI through the Critical Controls; and More Practical Insights on the 20 Critical Controls http://www.sans.org/boston-2011/ - -- SANS Virginia Beach 2011, August 22- September 2, 2011 11 courses. Bonus evening presentations include SANS Hacklab; Offensive Countermeasures; and Evolving VoIP Threats http://www.sans.org/virginia-beach-2011/ - -- Looking for training in your own community? http://sans.org/community/ Save on On-Demand training (30 full courses) - See samples at http://www.sans.org/ondemand/discounts.php#current Plus Barcelona, London, Austin, and Canberra all in the next 90 days. For a list of all upcoming events, on-line and live: http://www.sans.org/index.php *****************************************************************
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PART I Critical Vulnerabilities Part I for this issue has been compiled by Josh Bronson at TippingPoint, a division of HP, 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/risk/#process
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Description: Microsoft has released patches addressing multiple security vulnerabilities in its products. Two of the issues involve unspecified vulnerabilities triggered when handling PowerPoint applications. These issues can be exploited for code execution by enticing a target to view a malicious file. The third issue involves a problem in Microsoft's Windows Internet Name Service (WINS), which is Microsoft's implementation of NetBIOS. This vulnerability can be exploited by sending a malicious request to the service. Successful attacks will lead to code execution with SYSTEM-level privileges.
Status: vendor confirmed, updates available
Description: Vupen has discovered significant flaws in Google Chrome that can be used by an attacker for arbitrary code execution. Details have not been released on the vulnerabilities used, but Vupen claims to have bypassed DER (Data Execution Protection) and ASLR (Address Space Layout Randomization). Both DER and ASLR are mitigation strategies. They are designed to limit the damage from vulnerabilities resulting from implementation errors that allow programmers to overwrite operating-system-controlled metadata stored in memory, including instruction pointers. DER is designed to prevent direct execution of memory marked as data, while ASLR is designed to randomize the location of important metadata in memory. Both of these mitigation strategies are intended to make exploit development more challenging, but modern exploits like the one Vupen disclosed can chain multiple vulnerabilities to overcome these obstacles. By enticing the target to view a malicious site, an attacker can exploit this vulnerability in order to execute arbitrary code on the target's machine.
Status: vendor confirmed, updates available
Part II -- Comprehensive List of Newly Discovered Vulnerabilities from Qualys (www.qualys.com) 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 11251 unique vulnerabilities. For this special SANS community listing, Qualys also includes vulnerabilities that cannot be scanned remotely. ______________________________________________________________________
(c) 2011. 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.
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