Threat Level: green Handler on Duty: Rob VandenBrink

SANS ISC InfoSec Handlers Diary Blog


Sign Up for Free!   Forgot Password?
Log In or Sign Up for Free!

Microsoft August 2012 Black Tuesday Update - Overview

Published: 2012-08-14
Last Updated: 2012-08-14 18:49:46 UTC
by Rick Wanner (Version: 1)
12 comment(s)

Overview of the August 2012 Microsoft patches and their status.

# Affected Contra Indications - KB Known Exploits Microsoft rating(**) ISC rating(*)
clients servers
MS12-052 Cumulative Security Update for Internet Explorer - Layout Memory Corruption Vulnerability
(Replaces MS12-037)
MSIE
CVE-2012-1526
KB 2722913 No publicly known exploits. Severity:Critical
Exploitability: 1
Critical Important
MS12-053 Vulnerability in Remote Desktop Could Allow Remote Code Execution
(Replaces MS12-036)
Remote Desktop
CVE-2012-2526
KB 2723135 No publicly known exploits. Severity:Critical
Exploitability: 2
Critical N/A
MS12-054 Vulnerabilities in Windows Networking Components Could Allow Remote Code Execution
(Replaces MS08-067 MS09-022)
Windows Networking
CVE-2012-1850
CVE-2012-1851
CVE-2012-1852
CVE-2012-1853
KB 2733594 No publicly known exploits. Severity:Critical
Exploitability: 1
Critical Critical
MS12-055 Vulnerability in Windows Kernel-Mode Drivers Could Allow Elevatin of Privilege
(Replaces MS12-047)
Windows Kernel Mode Drivers
CVE-2012-2527
KB 2731847 No publicly known exploits. Severity:Important
Exploitability: 1
Important Important
MS12-056 Vulnerability in JScript and VBScript Engines Could Allow Remote Code Execution
(Replaces MS11-031)
JScript and VBScript
CVE-2012-3408
KB 2706045 No publicly known exploits. Severity:Important
Exploitability: 2
Critical Important
MS12-057 Vulnerability in Microsoft Office Could Allow Remote Code Execution
(Replaces MS11-073 MS10-105)
Office
CVE-2012-2524
KB 2731879 No publicly known exploits. Severity:Important
Exploitability: 3
Important N/A
MS12-058 Vulnerability in Microsoft Exchange Server WebReady Document Viewing Could Allow Remote Code Execution
Exchange
CVE-2012-2525
CVE-2012-1767
CVE-2012-1773
KB 2740358 No publicly known exploits. Severity:Critical
Exploitability: 1
N/A Critical
MS12-059 Vulnerability in Microsoft Visio Could Allow Remote Code Execution
(Replaces MS11-089 MS12-031)
Visio
CVE-2012-1888
KB 2733918 No publicly known exploits. Severity:Important
Exploitability: 1
Important N/A
MS12-060 Vulnerability in Windows Common Controls Could Allow Remote Code Execution
(Replaces MS12-027)
MSCOMCTL.OCX
CVE-2012-1856
KB 2720573 No publicly known exploits. Threatpost indicates being actively exploited. Severity:Critical
Exploitability: 1
Critical Critical
We will update issues on this page for about a week or so as they evolve.
We appreciate updates
US based customers can call Microsoft for free patch related support on 1-866-PCSAFETY
(*): ISC rating
  • We use 4 levels:
    • PATCH NOW: Typically used where we see immediate danger of exploitation. Typical environments will want to deploy these patches ASAP. Workarounds are typically not accepted by users or are not possible. This rating is often used when typical deployments make it vulnerable and exploits are being used or easy to obtain or make.
    • Critical: Anything that needs little to become "interesting" for the dark side. Best approach is to test and deploy ASAP. Workarounds can give more time to test.
    • Important: Things where more testing and other measures can help.
    • Less Urgent: Typically we expect the impact if left unpatched to be not that big a deal in the short term. Do not forget them however.
  • The difference between the client and server rating is based on how you use the affected machine. We take into account the typical client and server deployment in the usage of the machine and the common measures people typically have in place already. Measures we presume are simple best practices for servers such as not using outlook, MSIE, word etc. to do traditional office or leisure work.
  • The rating is not a risk analysis as such. It is a rating of importance of the vulnerability and the perceived or even predicted threat for affected systems. The rating does not account for the number of affected systems there are. It is for an affected system in a typical worst-case role.
  • Only the organization itself is in a position to do a full risk analysis involving the presence (or lack of) affected systems, the actually implemented measures, the impact on their operation and the value of the assets involved.
  • All patches released by a vendor are important enough to have a close look if you use the affected systems. There is little incentive for vendors to publicize patches that do not have some form of risk to them.

(**): The exploitability rating we show is the worst of them all due to the too large number of ratings Microsoft assigns to some of the patches.

--
-- Rick Wanner - rwanner at isc dot sans dot org - http://namedeplume.blogspot.com/ - Twitter:namedeplume (Protected)

12 comment(s)
ISC StormCast for Tuesday, August 14th 2012 http://isc.sans.edu/podcastdetail.html?id=2734
Diary Archives