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Update 11.02.2019 18:44:04

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10.3.20 Intel guidance for developers in response to LVI Image result for cpu attack"

LVI is a new class of transient-execution attacks exploiting microarchitectural flaws in modern processors to inject attacker data into a victim program and steal sensitive data and keys from Intel SGX, a secure vault in Intel processors for your personal data.

CPU
10.3.20 Load Value Injection in the Line Fill Buffers (LVI-LFB) Image result for cpu attack"

In recent years, several researchers have discovered and disclosed a series of vulnerabilities named microarchitectural side channel attacks. A side channel attack relies on careful measurements made by an attacker to determine the value of a secret located inside the victim memory (which is normally inaccessible to the attacker). The initial “wave” of side-channel attacks includes Meltdown [1] and Spectre [2].

CPU
10.3.20 Load Value Injection (LVI) Image result for cpu attack"

This technical deep dive expands on the information in the Load Value Injection (LVI) disclosure overview for software developers. Note that this documentation will use more precise (but different) terminology for transient execution side channel methods than we have used in past documents. Be sure to review the updated terminology guide and the list of affected processors.

CPU
10.3.20 Take A Way: Exploring the Security Implications of AMD’s Cache Way Predicto Image result for cpu attack" To optimize the energy consumption and performance of their CPUs, AMD introduced a way predictor for the L1-data (L1D) cache to predict in which cache way a certain address is located. Consequently, only this way is accessed, significantly reducing the power consumption of the processor. CPU
6.3.20 Intel x86 Root of Trust Image result for BIOS The scenario that Intel system architects, engineers, and security specialists perhaps feared most is now a reality. A vulnerability has been found in the ROM of the Intel Converged Security and Management Engine (CSME). ROM BIOS
6.3.20 Point-to-Point Protocol (PPP) Vulnerebility Image result for protocol The US-CERT today issued advisory warning users of a new dangerous 17-year-old remote code execution vulnerability affecting the PPP daemon (pppd) software that comes installed on almost all Linux based operating systems, as well as powers the firmware of many other networking devices. Protocol

26.2.20

Kr00k Vulnerebility

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Kr00k – formally known as CVE-2019-15126 – is a vulnerability in Broadcom and Cypress Wi-Fi chips that allows unauthorized decryption of some WPA2-encrypted traffic.
Who is affected?

WiFi

17.2.20

Dozen Vulnerabilities

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A Dozen Vulnerabilities Affect Millions of Bluetooth LE Powered Devices

Bluetooth

11.12.19

Plundervolt

Výsledek obrázku pro plundervolt

Modern processors are being pushed to perform faster than ever before - and with this comes increases in heat and power consumption. To manage this, many chip manufacturers allow frequency and voltage to be adjusted as and when needed. But more than that, they offer the user the opportunity to modify the frequency and voltage through priviledged software interfaces.

CPU

9.12.19

The StrandHogg vulnerability

Promon security researchers have found proof of a dangerous Android vulnerability, dubbed ‘StrandHogg’, that allows real-life malware to pose as legitimate apps, with users unaware they are being targeted.

OS

20.11.19

iTLB multihit

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iTLB multihit is an erratum where some processors may incur a machine check error, possibly resulting in an unrecoverable CPU lockup, when an instruction fetch hits multiple entries in the instruction TLB. This can occur when the page size is changed along with either the physical address or cache type. A malicious guest running on a virtualized system can exploit this erratum to perform a denial of service attack.

CPU

20.11.19

Jump Conditional Code Erratum

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Starting with the second-generation Intel® Core™ Processors and Intel® Xeon® E3-1200 Series Processors (formerly codenamed Sandy Bridge) and later processor families, the Intel® microarchitecture introduces a microarchitectural structure called the Decoded ICache (also called the Decoded Streaming Buffer or DSB).

CPU

13.11.19

TPM—Fail

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Trusted Platform Module (TPM) serves as a root of trust for the operating system. TPM is supposed to protect our security keys from malicious adversaries like malware and rootkits.

CPU

13.11.19

TSX Speculative Attack

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A new speculative vulnerability called ZombieLoad 2, or TSX Asynchronous Abort, has been disclosed today that targets the Transactional Synchronization Extensions (TSX) feature in Intel processors.

CPU

13.11.19

MDS Attack

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The RIDL and Fallout speculative execution attacks allow attackers to leak private data across arbitrary security boundaries on a victim system, for instance compromising data held in the cloud or leaking your data to malicious websites.

CPU

19.9.19

Simjacker Attack

simjacker

Following extensive research, AdaptiveMobile Security has uncovered a new and previously undetected vulnerability. This vulnerability is currently being exploited and is being used for targeted surveillance of mobile phone users.

SIM Attack

10.8.19

SWAPGS Attack

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The SWAPGS Attack, as they call it, circumvents the protective measures that have been put in-place in response to earlier attacks such as Spectre and Meltdown. Still, there is plenty of good news: Microsoft has already released Windows patches for the flaw that makes the attack possible and, even though feasible, the researchers don’t expect the attack to be exploited for widespread, non-targeted attacks.

CPU

10.3.19

Thunderclap

Výsledek obrázku pro IT hardware

Direct Memory Access (DMA) attacks have been known for many years: DMA-enabled I/O peripherals have complete access to the state of a computer and can fully compromise it including reading and writing all of system memory. With the popularity of Thunderbolt 3 over USB Type-C and smart internal devices, opportunities for these attacks to be performed casually with only seconds of physical access to a computer have greatly broadened.

Hardware

27.9.18

LOJAX First UEFI rootkit

Výsledek obrázku pro rootkit

UEFI rootkits are widely viewed as extremely dangerous tools for implementing cyberattacks, as they are hard to detect and able to survive security measures such as operating system reinstallation and even a hard disk replacement.

Hardware

21.8.18

Man-in-the-Disk

Výsledek obrázku pro android logo

Recently, our researchers came across a shortcoming in the design of Android’s use of storage resources. Careless use of External Storage by applications may open the door to an attack resulting in any number of undesired outcomes, such as silent installation of unrequested, potentially malicious, apps to the user’s phone, denial of service for legitimate apps, and even cause applications to crash, opening the door to possible code injection that would then run in the privileged context of the attacked application.

Hardware

21.8.18

Faxploit

Fax, the brilliant technology that lifted mankind out the dark ages of mail delivery when only the postal service and carrier pigeons were used to deliver a physical message from a sender to a receiver. Technology wise, however, that was a long time ago. Today we are light years away from those dark days. In its place we have email, chat messengers, mobile communication channels, web-services, satellites using quantum messaging and more.

Hardware

15.8.18

TLBLEED

Výsledek obrázku pro TLBLEED

TLBleed is a new side channel attack that has been proven to work on Intel CPU’s with Hyperthreading (generally Simultaneous Multi-threading, or  SMT, or HT on Intel) enabled. It relies on concurrent access to the TLB, and it being shared between threads. We find that the L1dtlb and the STLB (L2 TLB) is shared between threads on Intel CPU cores.

CPU

22.10.18

Foreshadow v7

Výsledek obrázku pro TLBLEED

CVE 2018-3620

CPU

22.10.18

Foreshadow v6

Výsledek obrázku pro TLBLEED

CVE 2018-3646

CPU

15.8.18

Foreshadow v5
L1 Terminal Fault (L1TF)

Foreshadow is a vulnerability that affects modern microprocessors that was first discovered by two independent teams of researchers in January 2018, but was first disclosed to the public on 14 August 2018.The vulnerability is a speculative execution attack on Intel processors that may result in the loss of sensitive information stored in personal computers, or third party clouds.There are two versions: the first version (original/Foreshadow) (CVE-2018-3615) targets data from SGX enclaves; and the second version (next-generation/Foreshadow-NG) (CVE-2018-3620 and CVE-2018-3646) targets Virtual Machines (VMs), hypervisors (VMM), operating system (OS) kernel memory, and System Management Mode (SMM) memory

CPU

15.8.18

Meltdown v3
Rogue Data Cache Load (RDCL)

Meltdown is a hardware vulnerability affecting Intel x86 microprocessors, IBM POWER processors, and some ARM-based microprocessors. It allows a rogue process to read all memory, even when it is not authorized to do so.

CPU

22.10.18

Spectre-NG

2018-3665 Lazy FP State Restore

CPU

22.10.18

Spectre-NG

2018-3693 Bounds Check Bypass Store (BCBS)

CPU

22.10.18

Spectre-NG v4
Speculative Store Bypass (SSB)

Speculative Store Bypass (SSB)

CPU

22.10.18

Spectre-NG v3a
Rogue System Register Read (RSRE)

On May 21, 2018, Intel published information on the first two Spectre-NG class side-channel vulnerabilities CVE-2018-3640 (Rogue System Register Read, Variant 3a) and CVE-2018-3639 (Speculative Store Bypass, Variant 4), also referred to as Intel SA-00115 and HP PSR-2018-0074, respectively.

CPU

22.10.18

Spectre v2
Branch Target Injection (BTI)

On March 15, 2018, Intel reported that it will redesign its CPUs (performance losses to be determined) to help protect against the Spectre and related Meltdown vulnerabilities (especially, Spectre variant 2 and Meltdown, but not Spectre variant 1), and expects to release the newly redesigned processors later in 2018.On October 8, 2018, Intel is reported to have added hardware and firmware mitigations regarding Spectre and Meltdown vulnerabilities to its latest processors. On October 18, 2018, MIT researchers suggested a new mitigation approach, called DAWG (Dynamically Allocated Way Guard), which may promise better security without compromising performance

CPU

15.8.18

Spectre v1
Branch Target Injection (BTI)

Spectre is a vulnerability that affects modern microprocessors that perform branch prediction.On most processors, the speculative execution resulting from a branch misprediction may leave observable side effects that may reveal private data to attackers. For example, if the pattern of memory accesses performed by such speculative execution depends on private data, the resulting state of the data cache constitutes a side channel through which an attacker may be able to extract information about the private data using a timing attack.

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