Posts tagged Hacked

Compaq Presario C700*Revisited bms battery hacked*

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nice now i can use any 10.5volt pack and the laptop still shows total volts and turn off on whatever voltage i set it at for safety.. 7.5 amp hours or 10amp …
Video Rating: 5 / 5


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Apple Laptop Batteries Hacked By Researcher

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Laptop Batteries
by N°J°

Apple Laptop Batteries Hacked By Researcher

Article by Battery-company.com.au

Apple Laptop Batteries Hacked By Researcher – Technology – Electronics

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Attackers could turn your laptop’s battery into a useless brick, or worse, overcharge it to the point where it starts a fire.

That warning comes by way of security expert Charlie Miller, who said that he’s successfully reverse-engineered Apple laptop “smart batteries,” enabling him to reprogram their embedded controllers. Miller, who’s a researcher at consultancy Accuvant, plans to document his research at next month’s Black Hat conference in Las Vegas.

According to Miller’s Black Hat talk description, “being able to control the working smart battery and smart battery host may be enough to cause safety issues, such as overcharging or fire.” Notably, when the lithium-ion batteries used in laptops overheat, they can rupture, causing injuries. On the other hand, well-manufactured batteries also include numerous safety features, such as the ability to shut down in the event of overheating, as well as circuit interrupters designed to prevent overcharging or undercharging.

In his forthcoming talk, Miller plans to will demonstrate how to modify the firmware used by Apple smart batteries, disable their anti-tampering checksum, and reprogram the battery firmware using “a simple API,” which he plans to release publicly. While Miller’s research focused on MacBook, MacBook Pro, and MacBook Air laptops from Apple–with whom he’s already shared the results of his research–he suspects that Windows laptop batteries would be susceptible to firmware attacks.

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Miller reverse-engineered Apple’s battery firmware after the company issued a related firmware update in 2009. From there, he discovered the default password used to secure batteries, and from there, he learned how to read the values from that firmware and alter how the battery firmware interacts with the laptop. To date, Miller said he’s successfully bricked seven Mac laptops via battery firmware hacks.

Interestingly, however, reprogramming the battery firmware could also allow an attacker to introduce persistent malware into the laptop. “You could put a whole hard drive in, reinstall the software, flash the BIOS, and every time it would reattack,” Miller told Forbes.com. “There would be no way to eradicate or detect it other than removing the battery.”

Despite the apparent threat vector, battery firmware offers essential functionality, providing giving users precise readings of a laptop’s remaining charge, operating time, and estimated recharge time, while also allowing the battery to control the voltage and current being provided by a charger.

But how feasible are attacks against battery firmware? Offering some perspective, Paul Ducklin, head of technology for Sophos in the Asia Pacific region, said in a blog post that when it comes to reprogramming controllers with field-updatable firmware, Acer laptop batteries aren’t the only option. Indeed, an attacker could also target “the motherboard itself, your wireless card, your 3G modem, network card, graphics device, storage devices, and much more,” he said.

To address the Apple laptop battery firmware vulnerability, Miller plans to release a utility called “Caulkgun” that will allow Apple users to change their laptop battery passwords. On the upside, the utility would prevent an attacker from exploiting an Apple battery pack’s embedded controller. On the downside, it would block any Apple patches, performance enhancements, or security updates from updating the battery’s firmware, unless the user first restored the battery’s default password.

About the Author

Battery-company.com.au offers a wide selection of replacement laptop batteries and laptop adapters for the leading manufacturers of laptop computers including Dell, Toshiba, Acer, Asus, HP, IBM, Sony, Apple, Compaq, Fujitsu, Gateway and more. If you need assistance locating your laptop battery or charger please contact us and we will find the right battery for you.All model of laptop battery was produced via advanced technologies and strick quality control, the External laptop batteries below are high quality!

Use and distribution of this article is subject to our Publisher Guidelines
whereby the original author’s information and copyright must be included.

Battery-company.com.au



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Battery-company.com.au offers a wide selection of replacement laptop batteries and laptop adapters for the leading manufacturers of laptop computers including Dell, Toshiba, Acer, Asus, HP, IBM, Sony, Apple, Compaq, Fujitsu, Gateway and more. If you need assistance locating your laptop battery or charger please contact us and we will find the right battery for you.All model of laptop battery was produced via advanced technologies and strick quality control, the External laptop batteries below are high quality!












Use and distribution of this article is subject to our Publisher Guidelines
whereby the original author’s information and copyright must be included.


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Apple Laptop Batteries Hacked – Laptop’s battery useless

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Apple Laptop Batteries Hacked – Laptop’s battery useless

Attackers could use a password weakness to render your laptop’s battery useless–or overcharge it to start a fire, researcher warns.

Attackers could turn your laptop’s battery into a useless brick, or worse, overcharge it to the point where it starts a fire.

That warning comes by way of security expert Charlie Miller, who said that he’s successfully reverse-engineered Apple laptop “smart batteries,” enabling him to reprogram their embedded controllers. Miller, who’s a researcher at consultancy Accuvant, plans to document his research at next month’s Black Hat conference in Las Vegas.

According to Miller’s Black Hat talk description, “being able to control the working smart battery and smart battery host may be enough to cause safety issues, such as overcharging or fire.” Notably, when the lithium-ion batteries used in laptops overheat, they can rupture, causing injuries.

On the other hand, well-manufactured batteries also include numerous safety features, such as the ability to shut down in the event of overheating, as well as circuit interrupters designed to prevent overcharging or undercharging.

In his forthcoming talk, Miller plans to will demonstrate how to modify the firmware used by Apple smart batteries, disable their anti-tampering checksum, and reprogram the battery firmware using “a simple API,” which he plans to release publicly. While Miller’s research focused on MacBook, MacBook Pro, and MacBook Air laptops from Apple–with whom he’s already shared the results of his research–he suspects that Windows laptop batteries would be susceptible to firmware attacks.

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Miller reverse-engineered Apple’s battery firmware after the company issued a related firmware update in 2009. From there, he discovered the default password used to secure batteries, and from there, he learned how to read the values from that firmware and alter how the battery firmware interacts with the laptop. To date, Miller said he’s successfully bricked seven Mac laptops via battery firmware hacks.

Interestingly, however, reprogramming the battery firmware could also allow an attacker to introduce persistent malware into the laptop. “You could put a whole hard drive in, reinstall the software, flash the BIOS, and every time it would reattack,” Miller told Forbes.com. “There would be no way to eradicate or detect it other than removing the battery.”

Despite the apparent threat vector, battery firmware offers essential functionality, providing giving users precise readings of a laptop’s remaining charge, operating time, and estimated recharge time, while also allowing the battery to control the voltage and current being provided by a charger.

But how feasible are attacks against battery firmware? Offering some perspective, Paul Ducklin, head of technology for Sophos in the Asia Pacific region, said in a blog post that when it comes to reprogramming controllers with field-updatable firmware, laptop batteries aren’t the only option. Indeed, an attacker could also target “the motherboard itself, your wireless card, your 3G modem, network card, graphics device, storage devices, and much more,” he said.

To address the Apple laptop battery firmware vulnerability, Miller plans to release a utility called “Caulkgun” that will allow Apple users to change their laptop battery passwords. On the upside, the utility would prevent an attacker from exploiting an Apple battery pack’s embedded controller. On the downside, it would block any Apple patches, performance enhancements, or security updates from updating the battery’s firmware, unless the user first restored the battery’s default password.

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