January 26, 2020

Microsoft to patch critical flaws in Windows and IE on Tuesday

microsoft logo(LiveHacking.Com) – Microsoft has released its customary advanced warning about security vulnerabilities that it plans to fix during its next Patch Tuesday. April’s update will contain nine bulletins, two of which are marked as Critical. The Critical bulletins address vulnerabilities in Microsoft Windows and Internet Explorer. The remaining seven are tagged as Important and will address issues in Microsoft Windows, Office, Anti-malware Software, and Server Software.

The IE bulletin affects all supported versions of Microsoft’s browser from IE 6 on XP to IE 10 on Windows 8 and RT. These vulnerabilities in IE could allow hackers to remotely execute arbitrary code (often used to infect a PC with malware via a drive-by download) on unpatched machines.

The Critical patches for Windows, which are also to fix remote code execution vulnerabilities, affects only the older versions of Windows from Windows 7 back to Windows XP. Windows 8, Windows Server 2012 and the version of Windows for tablets, Windows RT, are not affected.

Bulletin 7 only affects Windows 8 and Windows 8 RT and applies to some flaws in Windows Defender which could allow a hacker to run programs at an elevated privilege. Paul Henry, security and forensic analyst at Lumension, told The Register that “Windows Defender is an important security component for the new operating systems, so it’s a little concerning to see it impacted here, even if only at an ‘important’ rather than critical level. If you’re running either of those systems, I would patch this important bulletin first.

Microsoft plans to publish the bulletins on April 9, 2013 at approximately 10 a.m. PDT.

Microsoft fixes Critical remote code execution vulnerabilities

microsoft logo(LiveHacking.Com) – Microsoft has released 12 bulletins, five Critical and seven Important , to addressing 57 different vulnerabilities in Microsoft Windows, Office, Internet Explorer, Exchange and .NET Framework.

Among the fixes was a security update that resolves thirteen vulnerabilities in Internet Explorer. The most severe of these issues could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. As well as generally patching IE, the company also patched its implementation of the Vector Markup Language (VML) in its browser. If exploited the vulnerability could allow remote code execution if a user viewed a specially crafted webpage. Microsoft says that it is aware of this vulnerability being used as an information disclosure vulnerability in targeted attacks. It is therefore essential that this patch is applied as soon as possible.

There is also an update for Microsoft Windows Object Linking and Embedding (OLE) Automation. Again, the vulnerability could allow remote code execution, this time  if a user opens a specially crafted file. The fix corrects the way in which OLE Automation parses files. This security update is rated as Critical but only for Windows XP Service Pack 3. All other support versions of Microsoft Windows are not affected.

Similarly Microsoft fixed a vulnerability in how different types of media are decompressed. The remote code execution vulnerability could be exploited by tricking a user to open  a specially crafted media file (such as an .mpg file), open a Microsoft Office document (such as a .ppt file) that contains a maliciously crafted embedded media file, or if the user runs programs to receives streaming content designed to exploit the vulnerability.

There is also a fix for remote code execution vulnerabilities in Microsoft Exchange Server, the most severe of which could allow remote code execution in the security context of the transcoding service on the Exchange server if a user previews a specially crafted file using Outlook Web App (OWA). The transcoding service in Exchange that is used for WebReady Document Viewing.

Microsoft to fix 57 unique vulnerabilities in February’s Patch Tuesday, also updates Flash in IE 10

microsoft logo(LiveHacking.Com) – Microsoft has published an advanced notification of security patches that it intends to release on Tuesday February 12, 2013. It will  release 12 bulletins, five of which are rated as Critical and seven as Important. These bulletins address 57 unique vulnerabilities in various Microsoft products including Windows, Internet Explorer and Exchange Software, Office, .NET Framework, and Microsoft Server Software.

All five Critical bulletins resolve remote code execution problems while the Important class advisories will address denial of service and elevation of privilege problem along with another less harmful remote code execution vulnerability.

Windows XP is affected by four of the five Critical bulletins, while Windows 8 is affected by only two of them. The common vulnerabilities between the oldest and newest of Microsoft’s current supported operating systems are all connected with Internet Explorer. It seems that Microsoft will patch some holes in IE which can be found in IE 6, 7, 8, 9 and 10. The version of IE 10 in Windows RT is also affected.

The other Critical bulletin will be issued regarding Microsoft Exchange Server 2007 and Microsoft Exchange Server 2010.

IE 10 and Adobe Flash Player

Microsoft has also issued an update for Internet Explorer 10 on Windows 8 to update the built-in version of Adobe Flash Player which Adobe recently updated.  Adobe released security updates for Adobe Flash Player on Windows, OS X, Linux and Android to address vulnerabilities that could cause a crash and potentially allow an attacker to take control of the affected system.

Adobe is reporting that at least two of the vulnerabilities addressed are being exploited in the wild. In one targeted attack, users are tricked  into opening a Microsoft Word document delivered as an email attachment which contains malicious Flash (SWF) content. The other vulnerability is being exploited via malicious Flash (SWF) content hosted on websites that target Flash Player in Firefox or Safari on the Macintosh platform, as well as attacks designed to trick Windows users into opening another Microsoft Word document.

Microsoft updates its XML Core Services as part of Critical patch release

microsoft logo(LiveHacking.Com) –  Microsoft has released seven bulletins, two ranked Critical and five ranked Important, to address 12 vulnerabilities in Microsoft Windows, Office, Developer Tools and Windows Server. Among the Critical patches is an update (MS13-002) to Microsoft’s XML Core Services that resolves two flaws that could allow remote code execution when a user opened a specially crafted website designed to exploit the vulnerability. The issue was privately disclosed and Microsoft is not aware of any attacks in the wild.

The other Critical-class bulletin (MS13-001) addresses a vulnerability in Microsoft Windows which could allow remote code execution if a print server received a specially crafted print job. The standard default Windows firewall configuration means that this can’t normally be exploited from an external source. The bug only affects Windows 7 and Windows Server 2008 R2.

The first Important-class patch addresses vulnerabilities in System Center Operations Manager.  The vulnerabilities could allow elevation of privilege if a user visits an affected website by way of a specially crafted URL. Microsoft also fixed two other “elevation of privilege” vulnerabilities. The first in its .NET framework and the other in the Windows Kernel-Mode Driver. To exploit the kernel vulnerability a user would need to run an executable specifically designed to exploit the bug.

Microsoft also fixed a vulnerability in the way that Windows handle the SSL version 3 (SSLv3) and TLS protocols. The vulnerability could allow security feature bypass if an attacker injects specially crafted content into an SSL/TLS session. The flaw exists in all versions of Windows after XP: Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, and Windows RT.

The final patch fixes a problem in the Open Data Protocol. The vulnerability could allow denial of service if an unauthenticated attacker sends specially crafted HTTP requests to an affected site.

Someone has bypassed Microsoft’s Fix It for the IE 8 zero-day vulnerability already

security news at livehacking.com(LiveHacking.Com) – Security information company Exodus Intelligence has published a blog post claiming to have bypassed Microsoft’s Fix It for the current zero-day vulnerability in Internet Explorer 8. The official Fix It was released by Microsoft as a temporary workaround to the zero-day vulnerability found in Internet Explorer 6,7 and 8. The bug in IE can corrupt memory in such a way that it allows an attacker to execute arbitrary code in the context of the current user within IE. To exploit it, users are tricked into visiting a specially crafted website which uses either Flash or Javascript to generate a heap spray attack against IE. The Fix It uses a shim to change a few bytes of data in a .dll and so prevent the vulnerability from being used for code execution.

According to Exodus Intelligence it is now possible to bypass the shim and compromise a fully-patched system. Due to the nature of its business, Exodus Intelligence has passed on the details about the bypass to its customers. Thankfully it has also notified Microsoft. The company promises to fully disclose the details of the bypass once Microsoft has fully addresses the issue.

“After less than a day of reverse engineering, we found that we were able to bypass the fix and compromise a fully-patched system with a variation of the exploit we developed earlier this week,” said Exodus Intelligence on its blog.

Microsoft will release seven security bulletins today to address 12 vulnerabilities in Microsoft Windows, Office, Developer Tools, Microsoft Server Software and the .NET Framework. However a fix for the Internet Explorer vulnerability will not be among the patches.

Internet Explorer 9 and 10 are immune to the attack and upgrading to the later versions of IE will protect users (as will using a different browser like Firefox or Chrome), the problem is that XP users can’t upgrade IE beyond 8. Also Enterprise users may still be stuck on older versions of IE due to legacy application support. In combination this means that pressure is now mounting on Microsoft to make an out-of-band release for IE to fix the vulnerability.

Two Critical-level bulletins to be released by Microsoft on Tuesday, IE 8 patch not included

microsoft logo(LiveHacking.Com) –  Microsoft is preparing to release seven security bulletins next week; two Critical and five Important. In total they address 12 vulnerabilities in Microsoft Windows, Office, Developer Tools, Microsoft Server Software and the .NET Framework.

There is no news on when Microsoft plans to patch the zero day vulnerability and exploit in Internet Explorer that was discovered during the holidays. Until it is fixed, Microsoft has issued a Fix It. The vulnerability was discovered when FireEye was investigating reports that the Council on Foreign Relations (CFR) website had been compromised. According to Microsoft’s Security Advisory 2794220, the issue impacts Internet Explorer 6, 7, and 8 and that there are a small number of targeted attacks happening in the wild.

The first Critical bulletins affects all supported versions of  Windows (including Windows 8), Office 2003 & 2007 and some server software. The second is for Windows 7 and Windows Server 2008 R2 only. Both critical bulletins address vulnerabilities would enable an attacker to remotely execute code on a vulnerable Windows machine.

Windows 8 RT, the version of Windows that runs on the ARM processor used, among others, on Microsoft’s Surface tablet, is also affected by the first Critical bulletin and at least three of the Important-level ones.

The Important-level bulletins address vulnerabilities that could allow privilege escalations, vulnerabilities that could allow security features to be bypassed or vulnerabilities which could allow attackers to start a denial of service attack.

Microsoft plans to release the bulletins on the second Tuesday of the month, at approximately 10 a.m. PST.

In Brief: Microsoft re-releases one of its Patch Tuesday bulletins to fix font problem

microsoft_logo1-squareMicrosoft has re-released update MS12-078 to fix a problem with disappearing fonts. Reports starting to appear when users installed the patch that Microsoft released on December 11th. The patch was designed to fix a  font rendering vulnerability. In the worst case sceanatrio explotation of the bug could allow remote code execution if a user opens a specially crafted document or visits a malicious webpage that embeds TrueType or OpenType font files.

However it seems that the fix prevented PostScript Type 1 and OpenType fonts from being displayed correctly and the fonts disappeared completely in several programs including CorelDraw, QuarkExpress and PowerPoint. The only way to get the fonts back was to uninstall the update.

“Rereleased update KB2753842 to resolve an issue with OpenType fonts not properly rendering after the original update was installed. Customers who have successfully installed the original KB2753842 update need to install the rereleased update,” wrote Microsoft.

Microsoft fixes five Critical vulnerabilities as promised

(LiveHacking.Com) –  As expected Microsoft has released seven bulletins, five to address Critical vulnerabilities and and two for Important vulnerabilities  In total the bulletins address 12 vulnerabilities a variety of products including Microsoft Windows, Internet Explorer (IE), Word and Windows Server.

According to Microsoft the two most important bulletins are MS12-077  – a cumulative security update for Internet Explorer and MS12-079 – a patch to fix a vulnerability in Microsoft Word that could allow remote code execution.

The IE update resolves three privately reported vulnerabilities, the most severe of which could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. The patch for Word resolves a privately reported vulnerability that could allow remote code execution if a user opens a specially crafted RTF file using an affected version of Microsoft Office software, or previews or opens a specially crafted RTF email message in Outlook while using Microsoft Word as the email viewer.

The other Critical vulnerabilities are MS12-078 – which fixes vulnerabilities in Windows kernel-mode drivers, MS12-080 – which addresses vulnerabilities in Microsoft Exchange Server and MS12-081 – which resolves a vulnerability in Windows file handling component. All of these three could allow remote code execution if exploited.

Adobe has also released an update to its Flash Player and as a result Microsoft has revised Security Advisory 2755801 to update the built-in version of Flash in Internet Explorer.

Microsoft to patch five critical security flaws in time for the holidays

(LiveHacking.Com) –  Microsoft has published its advance notification for the security vulnerabilities it will fix in December’s patch Tuesday. This month it will release seven security bulletins, five of which are rated as Critical and two as Important. In total these bulletins will address 11 vulnerabilities. The five Critical bulletins will fix security vulnerabilities in Microsoft Windows, Word, Windows Server and Internet Explorer. While the two Important-rated bulletins will resolve issues in Microsoft Windows.

Six of the seven bulletins address vulnerabilities that could allow an attacker to execute arbitrary code on the affected PC. While the other bulletin addresses a “Security Feature Bypass.” When Microsoft talk about a Critical rated vulnerabilities it means a flaw which can be exploited and allow arbitrary code execution without any user interaction. These vulnerabilities can allow self-propagating malware to spread. These types of vulnerabilities are normally exploited without warnings or prompts and can be triggered by browsing to a web page or opening email.

Windows XP is affected by all but one of the Windows related bulletins, as its Windows Server 2003.  Windows Vista, Windows 7 and Windows Server 2008 are likewise affected by four of the five fixes for Windows. For each of the previously mentioned operating systems  bulletin seven (which is rated as Important)  doesn’t apply. However bulletin seven does affect Windows Server 2008 R2 and Windows Server 2012.

Windows 8, Microsoft’s latest operating system which was released in October, is affected by two of the Critical bulletins and just one of Important ones.

Microsoft Office 2003, 2007 and 2010 are all affected by the Critical rated bulletin number three as is Microsoft SharePoint Server 2010 and Microsoft Office Web Apps 2010. Bulletin four deals with Critical issues in Microsoft Exchange Server 2007 and 2010.

“While it may be the most wonderful time of the year, we know it can also be the busiest time of the year,” wrote Dustin Childs from Microsoft. “We recommend that customers pause from searching for those hot new gadgets and review the ANS summary page for more information. Please prepare for bulletin testing and deployment as soon as possible to help ensure a smooth update process.”

Microsoft has scheduled the bulletin release for the second Tuesday of the month, at approximately 10 a.m. PST.

Microsoft to patch critical bugs including first fixes for Windows 8 and Windows 8 RT

(LiveHacking.Com) – Microsoft has published its advance notification for November’s Patch Tuesday. This month the company plans to release six bulletins which will fix 19 separate vulnerabilities. Four of the six bulletins are ranked at Critical and will  address 13 vulnerabilities in Microsoft Windows, Internet Explorer and the .NET Framework. Of the remaining two, the first is rated as Important and will address four vulnerabilities in Microsoft Office and finally, the last bulletin is rated as moderate and will address two issues in Microsoft Windows.

Five of the six bulletins fix vulnerabilities which could allow remote code execution. If exploited it would mean that attackers could use this bugs to install malware on to a vulnerable PC. The first bulletin is for Internet Explorer 9 and applies to Windows Vista and above (as IE9 isn’t available for XP) except for Windows 8 which runs IE10 by default, similarly bulletin three (the moderate update that addresses two issues in Windows) only applies to Windows Vista and above except Windows 8. However the remaining three Windows related bulletins affect all supported versions of Windows from XP upwards.

Microsoft’s latest operating system is not immune to these bugs as Windows 8 receives three critical updates this month. This isn’t surprising as large parts of the code (especially the various libraries  are common across many versions of Windows. What is more surprising is that Windows 8 RT (the version that runs on ARM tablets) receives one critical and one important update. This again highlights the amount of source code shared between the different version and the bugs are related to the platform.

The bulletins are scheduled for release on the second Tuesday of this month, November 13, 2012, at approximately 10 a.m. PST.