Collaborate Disseminate
Both AMD and Intel have introduced memory encryption at the hardware level. AMD calls this Secure Memory Encryption (SME), with the Intel version being Total Memory Encryption (TME).
What kind of attacks can this technology … Continue reading What kind of attacks can hardware level memory encryption protect from?
By Waqas
“RAMBleed Reading Bits in Memory Without Accessing Them.” A team of security researchers has published a report on a relatively advanced and previously undetected variant of the Rowhammer attack called RAMBleed. Researchers claim t… Continue reading RAMBleed attack steals sensitive data from computer memory
An attacker can use Rowhammer attack to induce bit flips, thereby leaking the victim’s secret data. Continue reading RAMBleed Side-Channel Attack Exposes Privileged Memory
The past few days have been busy if you’re trying to keep up with the pace of computer security news. Between a serious Chromium bug that’s actively being exploited on Windows 7 systems, the NSA releasing one of their tools as an open source project, and a new Spectre-like speculative …read more
Continue reading Spoiler, Use-After-Free, and Ghidra: This Week in Computer Security
Due to the latest news regarding Rowhammer and its applicability to ECC DRAM, I was wondering whether there are any Rowhammer attacks spotted in the wild. Given the various approaches to conduct a Rowhammer attack (on X86, ARM, via JavaScr… Continue reading Are there any observed Rowhammer attacks in the wild
Over on the Cloudflare blog, [Marek] found himself wondering about computer memory, as we all sometimes do. Specifically, he pondered if he could detect the refresh of his SDRAM from within a running program. We’re probably not ruining the surprise by telling you that the answer is yes — with a little more than 100 lines of C and help from our old friend the Fast Fourier Transform (FFT), [Marek] was able to detect SDRAM refresh cycles every 7818.6 ns, lining right up with the expected result.
The “D” in SDRAM stands for dynamic, meaning that unless periodically refreshed by …read more
Continue reading Peering Into a Running Brain: SDRAM Refresh Analyzed from Userspace
Disastrous Rowhammer bitflips, malicious developer steals Bitcoin with nodeJS module, Germany proposes router security guidelines, Uber fined 148$ Million for data breach cover-up, Microsoft yanks 2 buggy Office patches, and a malvertising campaign imp… Continue reading NodeJS, Rowhammer, & FBI FedEx – Hack Naked News #198
Researchers have proven for the first that that error-correcting code (ECC) memory can be affected by the same bit-flipping attack known as Rowhammer that plagues regular DRAM memory. Rowhammer is a memory defect first documented in 2014 that occurs w… Continue reading ECC Memory Not Safe from Rowhammer Attack
In rowhammer, why will changing the voltage on one row cause the other row to open/close? Is it related to induction?
How can it change bits from 0 to 1? I understand from 1 to 0 – voltage discharge, but how can it cause cells to charge?
… Continue reading If rowhammer only results in capacitor discharge, how can it flip 0 to 1?
By Waqas
A group of security researchers from the University of Amsterdam, UC
This is a post from HackRead.com Read the original post: Android devices since 2012 vulnerable to RAMpage vulnerability
Continue reading Android devices since 2012 vulnerable to RAMpage vulnerability