Menu
Apple patches Bash vulnerability in OS X

Apple patches Bash vulnerability in OS X

The vulnerability posed little risk to most users

Apple has released a patch for Shellshock, a serious software vulnerability disclosed last week, although the company had said it posed no risk to most users.

Shellshock is the nickname for a flaw in the GNU Bourne Again Shell, or Bash, which is a command-line shell processor used for sending commands to an operating system. It is prevalent in Unix and Linux systems.

The flaw in Bash, which has been present for two decades, could allow an attacker to take complete control of a computer if the software is remotely accessible. An attacker could append malicious commands into a CGI (Common Gateway Interface) request, which would then be processed by a server.

The concern over Bash rivaled that of "Heartbleed," a vulnerability found in OpenSSL, a widely used open-source code library used to encrypted data between a client and a server. Like OpenSSL, Bash is present in a variety of software programs.

While security experts rank the Bash flaw as severe, the risk is dependent on how it is wrapped into other software.

Apple's OS X operating system is derived from Unix. Soon after the flaw became public, Apple advised that only users who have configured advanced Unix services may be vulnerable to the Bash flaw.

Security vendor Intego said Bash would be exposed on OS X if remote login was turned on for all users, a generally unsafe setting anyway. Older OS X servers that run Apache or PHP scripting environments could also potentially allow access to Bash, it said.

Apple has published separate Web pages containing the patch for Mavericks, Mountain Lion and Lion.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk


Follow Us

Join the newsletter!

Error: Please check your email address.

Tags patchesApplesecurityExploits / vulnerabilities

Featured

Slideshows

Sizing up the NZ security spectrum - Where's the channel sweet spot?

Sizing up the NZ security spectrum - Where's the channel sweet spot?

From new extortion schemes, outside threats and rising cyber attacks, the art of securing the enterprise has seldom been so complex or challenging. With distance no longer a viable defence, Kiwi businesses are fighting to stay ahead of the security curve. In total, 28 per cent of local businesses faced a cyber attack last year, with the number in New Zealand set to rise in 2017. Yet amidst the sensationalism, media headlines and ongoing high profile breaches, confusion floods the channel, as partners seek strategic methods to combat rising sophistication from attackers. In sizing up the security spectrum, this Reseller News roundtable - in association with F5 Networks, Kaspersky Lab, Tech Data, Sophos and SonicWall - assessed where the channel sweet spot is within the New Zealand channel. Photos by Maria Stefina.

Sizing up the NZ security spectrum - Where's the channel sweet spot?
Show Comments