pyth0n3 Posted January 23, 2010 Report Share Posted January 23, 2010 22nd January 2010 Privacy-conscious users of the Tor anonymiser network have been urged to upgrade their software, following the discovery of a security breach.Two of seven directory authorities and a metrics data server were compromised in a hack discovered earlier this month, Tor developer Roger Dingledine explains. The three servers were taken offline and refurbished following the hack.Fresh identity keys for the two directory authorities hit by the hack were created during the refurbishment process. Users should therefore update to either Tor version 0.2.1.22 or 0.2.2.7-alpha, so that they can use the refurbished servers as conduits for sensitive traffic.Project volunteers have taken steps to harden systems and prevent a repetition of the hack, the significance of which has been downplayed. Attackers reportedly used Tor's systems solely as a launchpad for other attacks, without realising that the same servers also hosted Tor code depositories. These were left unaffected by the breach."It appears the attackers didn't realize what they broke into - just that they had found some servers with lots of bandwidth," Dingledine explains. "The attackers set up some ssh keys and proceeded to use the three servers for launching other attacks."Neither was the attack severe enough for the unidentified attackers to match up users to their destinations. Nor did it affect the Tor source code.More details on the attack can be found in an FAQ posted by Dingledine Tor Project infrastructure updates in response to security breachPosted in Enterprise Security Quote Link to comment Share on other sites More sharing options...
