Undetectable Security Flaw Found in USBs

Undetectable Security Flaw Found in USBs

  • By Ginger Hill
  • Jul 31, 2014

Undetectable Security Flaw Found in USBsThe humble USB that interconnects our digital lives may not be as safe as we think. New research reveals a fundamental security flaw in the way this little data-saving jewel functions, and it could wreak havoc on computer systems.

Security researchers, Karsten Nohl and Jakob Lell, have reverse engineered the firmware that controls the basic functions of USBs, discovering an embedded controller chip that allows the device and connected computer to send information back and forth. This malware does not sit in flash memory, but is instead, hidden in the firmware.

It’s virtually impossible to check if a device’s firmware has been tampered with, besides, the malware can travel both ways, via a USB to infect a computer and then the PC can infect other USBs plugged into it.

So, what can be done about this? Very little, actually, as there’s no patch code that can be used. The only viable action at this time is to not plug a USB device into any computer that you don’t trust and don’t plug untrusted USBs into computers.

About the Author

Ginger Hill is Group Social Media Manager.

Featured

  • Tradeshow Work Can Be Fun

    While at ISC West last week, I ran into numerous friends and associates all of which was a pleasant experience. The first question always seemed to be, “How many does this make for you?” Read Now

    • Industry Events
    • ISC West

  • New Report Says 1 in 5 SMBs Would Be Forced to Shutter After Successful Cyberattack

    Small and medium-sized businesses (SMBs) play a crucial role in the U.S. economy, making up 99.9% of all businesses and contributing to half of the nation's GDP. However, these vital economic growth drivers face an escalating threat—cyberattacks that could put them out of business. Read Now

  • The Yellow Brick Road

    The road to and throughout Wednesday's and Thursday's ISC West was crowded but it was amazing. Read Now

    • Industry Events
    • ISC West

  • An Inside Look From Napco at ISC West

    Get a look into the excitement at ISC West 2025 from Napco. Hear from some of their top-tech executives live from the show floor. Read Now

    • Industry Events
    • ISC West

  • Upping the Ante

    I am not a betting man in terms of cards, dice, blackjack or that wheel with the black marble racing around the circumference of a spinning wheel, but I would bet on the success of ISC West this year. Read Now

    • Industry Events
    • ISC West
Most   Popular

New Products

  • FEP GameChanger

    FEP GameChanger

    Paige Datacom Solutions Introduces Important and Innovative Cabling Products GameChanger Cable, a proven and patented solution that significantly exceeds the reach of traditional category cable will now have a FEP/FEP construction.

  • Camden CV-7600 High Security Card Readers

    Camden CV-7600 High Security Card Readers

    Camden Door Controls has relaunched its CV-7600 card readers in response to growing market demand for a more secure alternative to standard proximity credentials that can be easily cloned. CV-7600 readers support MIFARE DESFire EV1 & EV2 encryption technology credentials, making them virtually clone-proof and highly secure.

  • Camden CM-221 Series Switches

    Camden CM-221 Series Switches

    Camden Door Controls is pleased to announce that, in response to soaring customer demand, it has expanded its range of ValueWave™ no-touch switches to include a narrow (slimline) version with manual override. This override button is designed to provide additional assurance that the request to exit switch will open a door, even if the no-touch sensor fails to operate. This new slimline switch also features a heavy gauge stainless steel faceplate, a red/green illuminated light ring, and is IP65 rated, making it ideal for indoor or outdoor use as part of an automatic door or access control system. ValueWave™ no-touch switches are designed for easy installation and trouble-free service in high traffic applications. In addition to this narrow version, the CM-221 & CM-222 Series switches are available in a range of other models with single and double gang heavy-gauge stainless steel faceplates and include illuminated light rings.