Page 18 - RealcommEDGE-May-2016
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the stadium, determine device specifics, and evaluate for known   be extremely disruptive. In some cases, it can even help stop
   exploits. At no time did the authors manipulate, comprise, gain   a team’s momentum. Note that shutting off lights/power is an
   unauthorized access, exploit, or perform actions on the system    extreme approach, and a fanatical fan may be more likely to take
   that are considered illegal.                                      a more subtle approach.

   Identification                                                    Temperature Control
   First, it is necessary to identify exposed stadiums. While        Athlete bodies are finely tuned machines, and half time is an
   numerous facilities associated with Bryant Denny Stadium were     opportunity for rapid recovery and adjustment of game plans. An
   discovered, there are three associated building automation        attacker with control of a team locker room building automation
   systems of interest: the north end zone, the south end zone, and  system can alter the temperature within the locker room during
   the home team locker room.                                        half time to an uncomfortable heat setting, making it more

   Enumeration                                                                                               difficult to concentrate on half
   Evaluation of the exposed systems provided pertinent                                                      time plan adjustments and
   information such as the building automation system                                                        negatively impacting the rest
   manufacturer. Once the manufacturer was identified, public                                                and recovery period for the
   banner enumeration was used to reveal the software version                                                team members. Indeed, a team
   number, which was cross-referenced with a database that                                                   that had to suffer through a half
   contains known vulnerabilities. At this point, an attacker could                                          time with the heater turned
   exploit the vulnerable systems and take control of operations.                                            completely on high would no
                                                                                                             doubt have to endure suffering
   Scenarios                                                                                                 that the opposing team is not
   An attacker now has the ability to control processes associated                                           subjected to.
   with the building automation systems of the north end zone,
   south end zone and home team locker room via the Internet.                                                Displays
   What impact could a fanatical fan now cause? The following                                                Most stadium displays are
   three examples outline plausible scenarios derived from years of                                          electronic and, in many
   experience working with building automation system security                                               instances, a control path
   and their control processes.                                                                              exists from the building
                                                                                                             automation systems to display
   Power                                                                                                     systems. There are a handful
   Wattstopper is a common energy management and lighting                                                    of vendors that make displays
   management automation system. Access to this infrastructure       and signage for college/professional sporting facilities. For
   likely provides the ability to shut off lights or even power      example, Daktronics is a very popular manufacturer of sports
   associated with various parts of the stadium. As shown during     signage, including video and scoreboard displays. From an
   Super Bowl XLVII, having a power loss during a live game can      impact perspective, changing the score for a live game would
                                                                     likely have minimal impact. However, tampering with time
16 Realcomm                                                          can go unnoticed or create a high degree of confusion. Even
                                                                     if tampering with the game clock were discovered during the
                                                                     game, there is little that can be done to rectify the issue if a
                                                                     snap has occurred before the clock error is discovered. While
                                                                     modifying the game clock is interesting, a more subtle effect
                                                                     could be introduced by adjusting the play clock to provide
                                                                     more or less time. The result could have a powerful effect on the
                                                                     tempo of the game. For example, if the play clock was modified
                                                                     to tick off a second every .75 seconds for Alabama, 10 seconds
                                                                     would be lost for each 40 second play clock. Alternatively,
                                                                     delaying a clock tick to 1.25 seconds for Auburn would buy them
                                                                     an extra 10 seconds per play. Given the Monday Night Football
                                                                     timing error that allowed 18 seconds to accidently tick off the
                                                                     clock with no one discovering the issue until after the game was
                                                                     over, this subtle manipulation could potentially be enacted for
                                                                     some time before discovery.

                                                                     Mitigation Steps
                                                                     The source of building automation system exposure for sports
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