Tag Archives: Google Chrome

June 2017 Security Updates Summary

Yesterday Microsoft and Adobe made available their monthly scheduled security updates.

Microsoft’s addressed a large number of vulnerabilities, 94 in total more formally known as CVEs (defined). These are detailed within Microsoft’s new Security Updates Guide.

At the time of writing there are three Known Issues for this month’s Microsoft updates (although all three knowledge base articles (4022717, 4022726, 4022715) describe the same iSCSI availability issue which is currently awaiting a resolution). The IT Pro Patch Tuesday blog hasn’t been updated since April and isn’t of assistance this time (and for that reason is becoming increasingly irrelevant).

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This month again breaks the usual trend with these updates to offer a collection of updates for Windows XP and Windows Server 2003 which address the remaining vulnerabilities disclosed by the ShadowBrokers hacking team back in April this year. The majority of these updates were already released for more modern versions of Windows after the end of support dates for Windows XP (April 2014) and Windows Server 2003 (July 2015) respectively. Please review the detailed security advisory to download the appropriate updates for your systems. Further information is available in Microsoft’s blog posts here and here.

As with the update made available in May, these updates will not be available via Microsoft Updates or Automatic Updates. The availability of these updates provides mixed meanings; namely that while they were made available is positive. However for those corporations, organisations and individuals sing out dated versions of Windows, it provides them less reasons to migrate since it hints at an attitude that Microsoft will patch those system if the situation get very bad. While Microsoft worked to dispel this point, not everyone will be aware of their statement on this matter.

In a further break from the routine of Update Tuesday, I wanted to mention a further set of vulnerabilities found in Windows Defender which Microsoft patched last month. Please ensure your version of Windows is using the patched version of Windows Defender as detailed in this news article to address these issues.

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Separately Adobe made available four security bulletins to updates for the following products:

Adobe Captivate (1x priority 3 CVE)

Adobe Digital Editions (9x priority 3 CVEs)

Adobe Flash (9x priority 1 CVEs)

Adobe Shockwave Player (1x priority 2 CVE)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin (the link includes “April” in the URL but it is not a typo) as appropriate and apply the recommended updates. Google Chrome users should have the updated version installed automatically later this week (if not already available).

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. As per the established process the Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

 

You can monitor the availability of security updates for most your software from the following websites (among others) or use Secunia PSI:
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US Computer Emergency Readiness Team (CERT) (please see the “Information on Security Updates” heading of the “Protecting Your PC” page):

https://www.us-cert.gov/

A further useful source of update related information is the Calendar of Updates. News/announcements of updates in the categories of General SoftwareSecurity Software and Utilities are available on their website. The news/announcements are very timely and (almost always) contain useful direct download links as well as the changes/improvements made by those updates (where possible).

If you like and use it, please also consider supporting that entirely volunteer run website by donating.

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If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

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For the Microsoft updates this month, I will prioritize the order of installation for you below:
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Critical severity:

Windows Search

Windows Lnk

Windows Graphics

Microsoft Edge (CVE-2017-8498CVE-2017-8530 and CVE-2017-8523) and Internet Explorer

Microsoft Office  (CVE-2017-0260 and CVE-2017-8506)

Microsoft Outlook
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Install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

As usual; I would recommend backing up the data on any device for which you are installing updates to prevent data loss in the rare event that any update causes unexpected issues.

Thank you.

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Update: 14th June 2017:
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I wish to provide information on other notable updates from June 2017 which I would recommend you install if you use these software products. I only choose a small number of products to list here since it can easily become too many and I wish to highlight the security benefits of installing the latest version of applications many of us use everyday:

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Mozilla Firefox:
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Firefox 54.0

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Mozilla Firefox ESR:
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Firefox ESR 52.2

Details of how to install updates for Firefox are here. If Firefox is your web browser of choice, please update it as soon as possible to resolve these security issues.

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Google Chrome:
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Google Chrome: includes 30 security fixes.

Google Chrome updates automatically and will apply the update the next time Chrome is closed and then re-opened. Chrome can also be updated immediately by clicking the Options button (it looks like 3 stacked small horizontal lines, sometimes called a “hamburger” button) in the upper right corner of the window and choosing “About Google Chrome” from the menu. Follow the prompt to Re-launch Chrome for the update to take effect.
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Wireshark 2.2.7 and 2.0.13
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As per standard process Linux distributions can obtain this update using the operating systems standard package manager (if the latest version is not installed automatically using the package manager you can instead compile the source code (v2.2.6) or v2.0.13). This forum thread and this forum thread may also be helpful to you with installing Wireshark on your Linux based system.

For Mac OS X and Windows, the update is available within the downloads section of the Wireshark website. In addition, a detailed FAQ for Wireshark is available here.
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May 2017 Security Updates Summary

Today Microsoft and Adobe made available their expected monthly security updates.

Microsoft’s updates address 57 vulnerabilities more formally known as CVEs (defined). These are detailed within Microsoft’s new Security Updates Guide.

At the time of writing there are no Known Issues for this month’s Microsoft updates. The IT Pro Patch Tuesday blog while not updated since last month doesn’t contain this months updates yet.
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Before continuing with this months updates I wanted to provide information on a critical out of band (un-scheduled) update made available by Microsoft yesterday to address a vulnerability responsibly disclosed (defined) by Google Project Zero researchers Natalie Silvanovich and Tavis Ormandy within Microsoft’s Malware Protection Engine. The full list of affected products is listed within their security advisory. The exploit code for this vulnerability was later published within a tweet (which will not exploit the vulnerability).

I recommend updating your version of the Malware Protection Engine as soon as possible to version 1.1.13704.0 (or later) since this vulnerability when exploited by an attacker will lead to them obtaining system level access (NT AUTHORITY\SYSTEM)(defined)(namely the highest level of privilege within a Windows system) over an affected system.

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Also today Adobe issued two security bulletins for the following products:

Adobe Experience Manager Forms (1x priority 2 CVE)
Adobe Flash Player (7x priority 1 CVEs)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin as appropriate and apply the recommended updates. Google Chrome users will have the updated version installed automatically later this week.

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. As always the Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

You can monitor the availability of security updates for most your software from the following websites (among others) or use Secunia PSI:
—————
US Computer Emergency Readiness Team (CERT) (please see the “Information on Security Updates” heading of the “Protecting Your PC” page):

https://www.us-cert.gov/

A further useful source of update related information is the Calendar of Updates. News/announcements of updates in the categories of General Software, Security Software and Utilities are available on their website. The news/announcements are very timely and (almost always) contain useful direct download links as well as the changes/improvements made by those updates (where possible).

If you like and use it, please also consider supporting that entirely volunteer run website by donating.

—————
If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

====================
For the Microsoft updates this month, I will prioritize the order of installation for you below:
====================
Critical severity:
Microsoft Malware Protection Engine
Microsoft Office
Microsoft Edge
Internet Explorer
Microsoft SMB (CVE-2017-0277, CVE-2017-0278, CVE-2017-0279)
====================

Install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

As usual; I would recommend backing up the data on any device for which you are installing updates to prevent data loss in the rare event that any update causes unexpected issues.

Thank you.

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Update: 10th May 2017:
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I wish to provide information on other notable updates from May 2017 which I would recommend you install if you use these software products. I only choose a small number of products to list here since it can easily become too many and I wish to highlight the security benefits of installing the latest version of applications many of us use everyday:

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Mozilla Firefox:
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Firefox 53.0.2

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Mozilla Firefox ESR:
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Firefox ESR 52.1.1

Details of how to install updates for Firefox are here. If Firefox is your web browser of choice, please update it as soon as possible to resolve these security issues.

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Google Chrome:
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Google Chrome: includes 1 security fix.

Google Chrome updates automatically and will apply the update the next time Chrome is closed and then re-opened. Chrome can also be updated immediately by clicking the Options button (it looks like 3 stacked small horizontal lines, sometimes called a “hamburger” button) in the upper right corner of the window and choosing “About Google Chrome” from the menu. Follow the prompt to Re-launch Chrome for the update to take effect.
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Nvidia Geforce Drivers:
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This update applies to Linux, FreeBSD, Solaris and Windows and resolves up to 15 security vulnerabilities. The steps to install the drivers are detailed here.

I detailed where Nvidia list their security advisories in a previous blog post.

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Malwarebytes:
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This update to Malwarebytes 3.1 (specifically v3.1.2.1733) resolves more than 1 security vulnerability (exact numbers and further details are not available).

Malwarebytes typically roll out updates in waves meaning it may be sometime before you receive this update. If the update is not automatically downloaded and installed in a timely manner, it is available from this link. Manual installation and general troubleshooting steps are available here.

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Apple security updates:
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Updates were made available by Apple on the 15th of May for iTunes for Windows, Safari, macOS Sierra, El Capitan and Yosemite, iOS, watchOS, tvOS, and iCloud for Windows.

Please see these links from Apple for advice on backing up your iPhone and iPad. Advice for updating tvOS is available here.

For advice on how to install updates for Apple devices, please see the steps detailed at the end of this Sophos blog post as well as this link (from my “Protecting Your PC” page). This link details how to update your Apple Watch.

Further information on the content of these updates is available this blog post.

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Hitman Pro:
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As recommended on my Tools and Resources page, Hitman Pro (now part of Sophos Security) has been updated to version 3.7.20 (Build 286). This update resolves 3 important vulnerabilities relating to the driver the tool uses for scanning. Any previous version of the tool should update automatically when opened to the most recent version.

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VideoLAN VLC:
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Update: 25th May 2017:
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Yesterday VideoLAN released version 2.2.6 of VLC for Windows only. It resolves the security issues listed below (assuming at least 2 heap overflows (given their use of the plural form)). This list came from the NEWS.txt file after installing version 2.2.6 since the detailed release notes on VideoLAN’s website have not yet been updated (and may not be until 2.2.6 is officially made available for macOS and Linux systems).

The update is currently being distributed via their automatic updater (upon opening VLC) and manually from their website (unexpectedly that page also contains tarballs for Linux):

Changes between 2.2.5.1 and 2.2.6:
———————————-

Video output:
* Fix systematic green line on nvidia
* Fix direct3d SPU texture offsets handling

Demuxer:
* Fix heap buffer overflows

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It was not known at the time version 2.2.5.1 was made available that the correction of “Fix potential out-of-band reads in subtitle decoders and demuxers” were actually security issues assigned to 4x CVEs discovered by CheckPoint security.

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Late last week VideoLAN released version 2.2.5.1 of VLC. This update is available for Linux, Apple Mac OS X and Windows. It addresses (at least) 13 security issues mentioned here (I’ll explain my numbering using the list below). This update is available for download for the above operating systems from this page.

If you use VLC, please update as soon as possible to address the above mentioned security vulnerabilities as well as the general software bugs that were resolved.

1. Security hardening for DLL hijacking environments
2. Fix potential out-of-band dereference in flac decoder
3. Fix potential out-of-band reads in mpeg packetizers
4. Fix incorrect memory free in ogg demuxer
5. Fix potential out-of-band reads in subtitle decoders and demuxers
6. Fix ADPCM heap corruption (FG-VD-16-067)
7. Fix DVD/LPCM heap corruption (FG-VD-16-090)
8. Fix possible ASF integer overflow
9. Fix MP4 heap buffer overflows
10. Fix Flac metadata integer overflow
11. Fix flac null-pointer dereference
12. Fix vorbis and opus comments integer overflows and leaks
13. The plugins loading will not load external DLLs by default. Plugins will need to LoadLibrary explicitly.

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Notepad++:
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On the 14th of May, Notepad++ made available a new version updating it to version 7.4. While it is not a security update it includes a security related improvement namely: Improve certificate verifying method.

This version has since been updated to version 7.4.1 to resolve a number of non-security issues. If you use Notepad++, please consider updating to the most recent version to benefit from the security improvement and the bug fixes it includes.

Please note, the 64 bit version of Notepad++ became available in September 2016. It allows the opening of larger files and includes High Entropy ASLR (Address Space Layout Randomization (defined)) on a 64 bit version of Windows. I have discussed HEASLR on this blog before and it’s an excellent security measure/control/mitigation (defined). Further information on HEASLR can be found on Alex Ionescu’s blog.

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GIMP (photo editor):
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The open source ((the source code (human readable code) is free to view and edit by the wider IT community) photo editor GIMP has made available version 2.8.22 which resolves one security vulnerability. If you use this editor, please update it to this version (or later).

Punycode makes phishing harder to detect

In mid-April, security researcher Xudong Zheng publicly disclosed (defined) and provided a demonstration of a security vulnerability within popular web browsers e.g. Google Chrome, Mozilla Firefox and Opera which may be used in phishing (defined) attacks.

Why should this vulnerability be considered important?
This vulnerability is not the first of kind, e.g. a similar vulnerability exists in how the DNS protocol resolves device hostnames (defined) (when combined with Service Discovery (SD) provides the capability of network resource distribution beyond the reach of multicast normally limited by the MAC Bridge.
However this vulnerability has the potential to allow an attacker to lead you into clicking a legitimate looking link which may lead to an unexpected website (which an attacker can populate with content of their choice). This may happen since an attacker can send you a highly targeted email (i.e. spear phishing) which you may be expecting and inadvertently click an undesired link or enter login details into a legitimate looking website (following a link from such an email).

Mr. Zheng demonstrates how this vulnerability exploits how web browsers translate letters from other non-Latin languages into Latin letters. For example, he registered the website of apple.com which when visited actually displays the website of xn--80ak6aa92e.com but your web browser will still show apple.com This occurs due to the translation of non-Latin letters into Latin characters making use of Punycode (a recognized standard of the Internet Engineering Task Force).

How can I protect myself from this vulnerability?
While the conventional advice of hovering over any link before clicking to view its actual destination is not redundant it is now significantly less useful.

If you use a password manager which works with your web browser it will not enter your username/password into a website translated from its Punycode. For example, your Apple credentials would not be entered into xn--80ak6aa92e.com

Google has addressed this vulnerability with the release of Chrome version 58. Opera also resolved this issue. Mozilla is currently considering the best means to resolve this vulnerability (Firefox 53 mistakenly shows apple.com) . In the meantime; Mozilla Firefox users can use the steps mentioned at the end of this news article to mitigate this issue.

For any website important to you, please manually type its address into your web browsers address bar to visit the legitimate website. Using encrypted connections where possible is encouraged e.g. https://twitter.com or https://mail.google.com

Thank you.

April 2017 Security Updates Summary

As expected earlier today Microsoft and Adobe released their scheduled monthly security updates.

Microsoft’s set of updates are much lighter in volume this month addressing 45 vulnerabilities more formally known as CVEs (defined). These are detailed within Microsoft’s new Security Updates Guide.

This month sees four known issues listed for this months updates all relating to the AMD Carrizo processor experiencing an issue which prevents the installation of future Windows Updates. Microsoft states in all four knowledge base articles (listed below) they are aware of this issue and are working to resolve it in upcoming updates:

KB4015549
KB4015546
KB4015550
KB4015547

At the time of writing the IT Pro Patch Tuesday blog does not list any Known Issues (although it has not been updated since November 2016, I’m unsure why).

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Adobe issued five security bulletins today affecting the following products:

Adobe Campaign (1x priority 2 CVE)
Adobe Flash Player (7x priority 1 CVEs)
Adobe Acrobat and Reader (47x priority 2 CVEs)
Adobe Photoshop (2x priority 3 CVEs)
Adobe Creative Cloud Desktop (2x priority 3 CVEs)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin as appropriate and apply the recommended updates. Google Chrome users will have the updated version installed automatically later this week.

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. The Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

You can monitor the availability of security updates for most your software from the following websites (among others) or use Secunia PSI:
—————
US Computer Emergency Readiness Team (CERT) (please see the “Information on Security Updates” heading of the “Protecting Your PC” page):

https://www.us-cert.gov/

A further useful source of update related information is the Calendar of Updates. News/announcements of updates in the categories of General Software, Security Software and Utilities are available on their website. The news/announcements are very timely and (almost always) contain useful direct download links as well as the changes/improvements made by those updates (where possible).

If you like and use it, please also consider supporting that entirely volunteer run website by donating.

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Update: 8th May 2017:
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I wish to provide information on other notable updates from April 2017 which I would recommend you install if you use these software products:

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Skype: While the Skype update to version 7.34.0.102 was released in March; details of the vulnerability it addressed were not made public until April.
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Putty 0.69: while released in March; it contains important security changes. It is downloadable from here.
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Wireshark 2.2.6 and 2.0.12
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As per standard process Linux distributions can obtain this update using the operating systems standard package manager (if the latest version is not installed automatically using the package manager you can instead compile the source code (v2.2.6) or v2.0.12). This forum thread and this forum thread may also be helpful to you with installing Wireshark on your Linux based system.

For Mac OS X and Windows, the update is available within the downloads section of the Wireshark website. In addition, a detailed FAQ for Wireshark is available here.
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Oracle:
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There was a record 299 vulnerabilities addressed by Oracle’s updates in April. Further details and installation steps are available here. A useful summary post from Qualys is here. Of the 299 fixes, 8 vulnerabilities were addressed in the Java runtime.

If you use any of the Oracle products listed here, please install the appropriate security updates as soon as possible.
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Mozilla Firefox:
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Firefox 53.0 and Firefox 53.0.2

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Mozilla Firefox ESR:
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Firefox ESR 45.9 and Firefox ESR 52.1.

Details of how to install updates for Firefox are here. If Firefox is your web browser of choice, please update it as soon as possible to resolve these security issues.

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Google Chrome:
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Google Chrome: includes 29 security fixes:

Google Chrome updates automatically and will apply the update the next time Chrome is closed and then re-opened. Chrome can also be updated immediately by clicking the Options button (it looks like 3 stacked small horizontal lines, sometimes called a “hamburger” button) in the upper right corner of the window and choosing “About Google Chrome” from the menu. Follow the prompt to Re-launch Chrome for the update to take effect.
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Adobe Coldfusion:
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Adobe Coldfusion: 2x priority 2 vulnerabilities resolved.

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If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

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For the Microsoft updates this month, I will prioritize the order of installation for you below:

====================
Critical severity:
Microsoft Office and Windows WordPad (due to a previously disclosed zero day vulnerability (defined))
Microsoft Edge
Internet Explorer
Microsoft .Net Framework
====================

Install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

As is my standard practice, I would recommend backing up the data on any device for which you are installing updates to prevent data loss in the rare event that any update causes unexpected issues.

Thank you.

Blog Post Shout Out: SHA-1 Migration and Internet of Things (IoT)

With the transition to SHA-2 rapidly approaching (January 2017) if you have not already begun the migration process for your website or are having difficulties locating all of the certificates that need migrating; the following article that I wish to provide a respectful shout out to may be of assistance. The article includes advice on making the best use of the remaining time:

SHA-1 Time Bomb: One Third of Websites Have Yet to Upgrade by Phill Muncaster (Infosecurity Magazine)

This issue is also of note since Google (like the other browser vendors is moving away from SHA-1) will remove support for SHA-1 in Chrome version 56. Further details are provided in their blog post. The source of the statistics for the Infosecurity Magazine article was this blog post from Venafi, an organisation that provides cryptography related solutions and services to enterprises.

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With the DDoS attack (defined) against the DNS service Dyn last month attributed to Internet of Things (defined) devices further steps need to be taken to secure them. To assist with this, the US CERT have written a PDF document titled “Strategic Principles for Securing the IoT”. It is intended for consumers, operators and manufacturers of IoT devices. It is available from the link below:

Securing the Internet of Things (US-CERT)

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Thank you.

Disclosed Microsoft Zero Day Under Attack By APT Group

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Update: 8th November:
The Microsoft zero day vulnerability discussed in this post has now been patched. Please refer to this post for the appropriate information and download links.

Thank you.

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Original Post:
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Earlier this week Google publicly disclosed (defined) details of a new zero day (defined) vulnerability affecting supported versions of Windows up to Windows 10. Fortunately, the disclosure only included minimal details.

Why Should These Issues Be Considered Important?
The vulnerability disclosed by Google could result with an attacker being able to elevate their privileges (defined) on an affected system. However, when used in combination with a previously patched Adobe Flash Player vulnerability (reference previous post) this could result in a Windows system under your responsibility or in your ownership to have a backdoor (defined) installed.

Some good news is that this new exploit primarily targets organisations that operate in the following sectors (thus all other organisations are at somewhat reduced risk): government, intelligence or military organisations.

The nature of the backdoor is the decision of the attacker but would usually include a means of remaining persistent on the system and allowing the attacker to remote access the infected system. This backdoor can then be used to move data of the attacker’s choice off the affected system. The APT group known as STRONTIUM by Microsoft (other aliases used in the wider cyber security industry are APT28, also aka Sofacy aka Fancy Bear aka TsarTeam aka Sednit aka PawnStorm). STRONTIUM is also known for moving laterally throughout the network which they compromise (where the pass the hash (PtH) (defined) technique is the method of choice to do so).

How Can I Protect Myself From This Issue?
While a patch from Microsoft is in progress (scheduled for release on the 8th of November): follow safe email guidelines namely don’t click on unexpected/unsolicited links or open potentially dangerous email attachments to prevent the execution (carrying out of) the exploits actions in the first instance.

If you use the Microsoft Edge or Google Chrome web browsers the exploit for the local elevation of privilege vulnerability will be mitigated. This is due to Chrome’s sandbox (defined) blocking the use of API (defined) calls to the win32k.sys driver (defined). This in addition to its existing mitigations when installed on Windows 10 which I previously discussed.

Microsoft Edge on the other hand implements Code Integrity to prevent the next steps of exploitation.

To protect endpoints within your organisation you could consider utilising the logging capabilities of Microsoft EMET and Systinternals’ Sysmon by processing their logs using a SIEM (defined) and taking action when that SIEM a alerts you to suspicion activity. This is especially true since this exploit can occur from within web browsers, the Java JRE, Microsoft Word and Microsoft PowerPoint (namely that these applications are used to open suspicious/untrusted files).

My thanks to a colleague (you know who you are!) for compiling very useful information for this blog post.

Thank you.

Blog Post Shout Out: Creating Passwords and Internet Privacy

This blog post shout out will focus on both security and privacy related issues.

While there has recently been a renewed focus to phase out passwords, until that happens we need to continue to manage them.

The following article discusses (among other topics) managing passwords. It focuses on providing security while making it easier for users to remember them. It also raises doubts about the need for changing passwords so often and provides evidence to back this up.

All of this advice may useful if you are trying to create or update your corporate password policy to make it more user friendly while still maintaining security.

How to hack the hackers: The human side of cybercrime by M. Mitchell Waldrop (Nature Journal)

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In an effort to preserve your privacy you may be using a VPN (defined) connection when browsing the internet using your computer or mobile devices.

However as noted by F-Secure in this FAQ article, this may not be enough to fully protect your identity since some information (namely your real IP address) can still be leaked via WebRTC traffic. Within that FAQ article they provide advice on how to prevent this leak for the most common web browsers.
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Related to the above topic of VPNs, using public Wi-Fi hotspots isn’t a good idea if you want to preserve your privacy as this Kaspersky article demonstrates.

While a VPN can assist with preserving that privacy when using a public Wi-Fi, it isn’t a perfect solution. For example, apps installed on mobile devices can still leak data as discussed in this article.

However, it possible to better control such data leakage on Android and Apple iPhones. A guide to do this for Android is available here.

For an iPhone, you can open Setting -> Mobile data and change the settings according to your preference. However, when you connect to a public Wi-Fi hotspot all the network connections in use by the apps will begin new connections or resume existing connections.

To minimise the amount of data leaked you should use a VPN (as I have already discussed above) for your mobile device. In addition, you should use the Low Power Mode option of your iPhone from Settings -> Battery and change the setting. This setting change will halt background tasks, delete Wi-Fi access point associations, previous new emails being received and automatic downloads. More information on this setting is available from here.

Next, turn on your VPN (Settings -> General -> VPN). A list of popular VPN providers is available here.

Using the above steps will help to minimise the amount of data leaked if you are privacy conscious and use an Android powered device or an iPhone. Full disclosure: as you know I use an Android phone so I haven’t intentionally provided more information/discussion on the iPhone.

I hope that you find the above references useful in maintaining your security and privacy. Many thanks to a colleague (you know who you are) for contributing the advice on using VPNs with mobile devices.

Thank you.