Ruby on Rails bug is being exploited in the wild, researcher warns
Posted on 29 May 2013.
Administrators of servers running Ruby on Rails are advised once again to upgrade to the latest versions of the framework (3.2.11, 3.1.10, 3.0.19, and 2.3.15), as a vulnerability that exists in previous versions is being actively exploited in the wild to rope servers into an IRC botnet.

According to security researchers Jeff Jarmoc, the attacks have been mounted from three domains, and deliver a payload that adds commands to crontab and downloads malicious source files and executables. The downloaded malware ultimately sets up an IRC bot that attempted to connect to one of two domains and to joint the #rails channel.

"The script uses a randomly generated 9 character nickname when connecting to IRC. "A lockfile ‘/tmp/tan.pid’ ensures the bot only executes once on an infected host," he shared. "Functionality is limited, but includes the ability to download and execute files as commanded, as well as changing servers."

Jarmoc is a little surprised that it took this long for the vulnerability - which was patched in January - to be exploited in the wild, but says that the fact that some admins haven't upgraded their installations of Rails since then is less of a surprise.

He pointed out that the payload-serving domains, the additional downloaded malware, and the IRC server are now not available anymore, and that the attacks were likely performed by script kiddies.









Spotlight

Chrome extension thwarts user profiling based on typing behavior

Infosec consultant Paul Moore came up with a working solution to thwart a type of behavioral profiling. The result is a Chrome extension called Keyboard Privacy, which prevents profiling of users by the way they type by randomizing the rate at which characters reach the DOM.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  
DON'T
MISS

Wed, Jul 29th
    COPYRIGHT 1998-2015 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //