Category Archives: Security

aka infosec

Critical security updates for WordPress and plugins

WordPress 4.1.2 was released on Tuesday to address a critical security vulnerability. Sites configured for auto updates will be updated over the next day or so, but you might want to consider installing the update via the dashboard right now.

In related news, security researchers at Sucuri just published a list of popular WordPress plugins that contain serious XSS vulnerabilities. Most of these plugins already have updates addressing the issue. Check your WordPress sites for these plugins, and either update or disable them.

Google extends Chrome support for Windows XP

Recognizing that millions of people are still using Windows XP, Google has extended support for that O/S in their web browser. That means they will continue to develop fixes for security issues in Chrome running on Windows XP. Anyone still using Windows XP is strongly encouraged to stop using Internet Explorer, which is no longer supported by Microsoft, and use Google Chrome instead.

Malvertising shows no sign of slowing down

Nasty malware, hidden inside a phony ad that appeared on the Huffington Post web site, was exposed to thousands of users earlier this week. The Flash-based ad was delivered via Google’s Doubleclick advertising network. And this wasn’t even the largest malvertising exposure this week.

Google had better get to work on fixing this, or it will start eating into their primary revenue source.

45 security issues fixed in Chrome 42.0.2311.90

The latest version of Chrome includes fixes for forty-five security vulnerabilities. According to the announcement, version 42.0.2311.90 also has improvements in stability and performance.

Starting with this version of Chrome, the old NPAPI technology used for plugins (including Java and Silverlight) is disabled by default. If any of your Chrome plugins still use this technology, you’ll need to enable them when the browser warns you.

Java 8u45 released

Oracle has released Update 45 for Java 8. Anyone using Java should install the update as soon as possible, since it contains fixes for at least fourteen security vulnerabilities.

NOTE: Java 7 is no longer being updated, so if you’re still using it, you should upgrade to Java 8 as soon as possible. If Java is configured to auto-update itself, it will upgrade Java 7 to Java 8 automatically.

Update 2015May14: The final update for Java 7 was 7u79/7u80, released on April 14, 2015.

Patch Tuesday for April 2015

It’s that time again. This month there are eleven updates from Microsoft, with four of them flagged as Critical, affecting Windows, Internet Explorer, Office and .NET.

Adobe has once again come along for the monthly festivities, today releasing a new version of Flash. Version 17.0.0.169 fixes at least fourteen vulnerabilities in Flash, including one for which exploits have been observed in the wild.

So, time to get busy updating your systems… especially where you’re using Flash in a web browser.

Update 2015Apr19: One of this month’s Windows updates is causing problems for people running Oracle VirtualBox, a popular emulator. The problematic update is KB3045999, also referred to as MS15-038. There’s no word yet from Oracle or Microsoft regarding a fix. Uninstalling the update appears to work, but this is obviously a temporary solution.

This month’s Ouch! newsletter: passphrases

What’s a passphrase? It’s a phrase or sentence that you use as a password. Phrases tend to be easier to remember than ordinary passwords, and they are much more difficult to crack.

This month’s Ouch! newsletter (PDF) provides a useful overview of passphrases and their use. Note that while passphrases can be very strong, you should still make sure to use a different one for each site or service. And of course you should use a good, offline password manager like Bruce Schneier’s Password Safe to keep track of them.

Google clamping down on malicious Chrome extensions

If you use Google’s web browser Chrome, and you’ve noticed that some extensions are causing problems, take heart. Google recently discovered that about 200 Chrome extensions are injecting ads in deceptive ways, often leading users to malware. These extensions have been killed by Google, and measures taken to prevent this type of abuse in the future. Note that Google doesn’t explicitly bar ad-injection extensions; however, such extensions are subject to certain limitations.

If you suspect that your installation of Chrome is running one or more of these rogue extensions, your best bet is to uninstall Chrome completely and reinstall it.

Update 2015Apr09: Google’s efforts to identify and remove problematic extensions are ongoing. More announcements of this type are expected. For example: the extension ‘Webpage Screenshot’ was found to be collecting user data inappropriately, and was also killed.