'Bash' Security Flaw in OS X Allows for Malicious Attacks on Devices and Services
Security researchers from Red Hat have uncovered a new exploit in the common "Bash" command shell found in OS X and Linux which can be used to deploy malicious code with minimal effort. Due to the ubiquity of the Bash shell, the exploit can affect a wide variety of different web-connected devices and properties, including unsecured websites, smart home appliances, servers, and more.
Security researcher Robert Graham noted on his blog that the Bash exploit is "as big as Heartbleed," referring to the flaw discovered earlier this year in the popular OpenSSL software which secures connections between clients and servers:
Internet-of-things devices like video cameras are especially vulnerable because a lot of their software is built from web-enabled bash scripts. Thus, not only are they less likely to be patched, they are more likely to expose the vulnerability to the outside world.
Unlike Heartbleed, which only affected a specific version of OpenSSL, this bash bug has been around for a long, long time. That means there are lots of old devices on the network vulnerable to this bug. The number of systems needing to be patched, but which won't be, is much larger than Heartbleed.
Heartbleed was said to have affected 66% of the Internet, although Apple announced in April that the exploit did not affect its software or "key services." Apple also released updates for the AirPort Extreme and Time Capsule to better secure both web devices against Heartbleed.
A topic discussing the Bash exploit on StackExchange also notes that Apple did not include a fix for the bug in its latest round of security updates that came alongside the release of OS X Mavericks 10.9.5 last week. It is possible however that Apple will release a fix for OS X in the near future to address the exploit, similar to what it has done for other security issues in the past.
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Top Rated Comments
If only Bash would have been open source so people could search bugs in the source code
The GNU people even were so nice to backport the fixes to the ancient version Apple is using because Apple doesn't want code that's licensed with GPL v3.
Apple just has to apply the patch and provide a new bash binary through software update. Apple does not have to identify the bug, they don't have to come up with a solution, they don't have to verify the fix. Everything is done already.
Stupid politics are the only thing that prevent the release of this bugfix. Probably because they like to bundle patches so people think their software is more secure because it isn't patched that often.
Part of 'iOS 8 issues'.
Not an issue at all, just some idiots who think RAM is free.
Not an issue, just a business decision that not everyone agrees with.
Weeks ago. (Though otherwise valid.)
So yeah, not too bad at all.
This problem primarily affects things running a (web) server.
Your home Mac might technically be affected, but you're likely not running anything that exposes the bug to an attacker.