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Vulnerability found in Intel processors Vulnerability found in Intel processors

Security

Vulnerability found in Intel processors

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The vulnerability could be used to gain access to encrypted files.

Vulnerability CVE-2021-0146 Allows you to enable test or debug modes on multiple Intel processor lines. This could allow an unauthenticated user with physical access to gain elevated privileges on the system.

The issue has been found in the Pentium, Celeron and Atom processors of the Apollo Lake, Gemini Lake and Gemini Lake Refresh platforms, which are used in both mobile computers and embedded systems. The threat affects a wide range of ultra-mobile netbooks and a significant portion of Intel-based Internet of Things (IoT) systems, from home appliances and smart home systems to cars and medical equipment. By research findings Mordor Intelligence, Intel is the fourth largest IoT chip market, and its Intel Atom E3900 series IoT processors, which also have CVE-2021-0146 vulnerability, are being exploited by automakers in over 30 models cars, including, according to unofficial data, by Tesla in Tesla Model 3

The error, which received a score of 7.1 on the CVSS 3.1 scale, was identified by Mark Ermolov, Dmitry Sklyarov (both Positive Technologies specialists) and Maxim Goryachy (independent researcher).

“One example of a real threat is lost or stolen laptops containing confidential information encrypted,” says Mark Ermolov… – Using this vulnerability, an attacker can extract the encryption key and gain access to information inside the laptop. The bug can also be exploited in targeted attacks across the supply chain. For example, an employee of an Intel processor-based device vendor could theoretically extract the Intel CSME firmware key and deploy spyware that would not be detected by security software. This vulnerability is also dangerous in that it allows you to extract the root encryption key used in Intel PTT (Platform Trust Technology) and Intel EPID (Enhanced Privacy ID) technologies in systems for protecting digital content from illegal copying. For example, a number of Amazon e-book models use Intel EPID-based protection for digital rights management. Using this vulnerability, an attacker can extract the root EPID key from a device (e-book), and then, having compromised Intel EPID technology, download electronic materials from providers in the form of files, copy and distribute them. “

According to Mark Ermolov, from a technical point of view, the vulnerability is due to the presence of debugging functionality with excessive privileges, which is not properly protected. To avoid such problems in the future and to prevent the possibility of bypassing the built-in protection, manufacturers should be more careful in securing the debug mechanisms.

To fix the discovered vulnerability, you must install the UEFI BIOS updates published by the end manufacturers of electronic equipment (notebooks or other devices).

Ensuring continuous monitoring of vulnerabilities within the infrastructure will help MaxPatrol VM – a new generation system in the field of vulnerability management. In the event of a successful attack, one of the ways to identify signs of penetration is to use SIEM-class systems (for example, MaxPatrol SIEM ) that allow you to detect suspicious behavior on the server and promptly stop the movement of intruders inside the corporate network.

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Vulnerability found in the Apple M1 processor that cannot be closed programmatically

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Vulnerability found in the Apple M1 processor that cannot be

Specialists from the Computer Science and Artificial Intelligence Laboratory (CSAIL) from the Massachusetts Institute of Technology said that they were able to develop a PACMAN attack technique, which is possible due to a hardware vulnerability in the Apple M1 processor. Moreover, it cannot be closed by software.

Vulnerability found in the Apple M1 processor that cannot be closed programmatically

The attack itself is carried out using software and hardware, and it can be performed remotely. The PACMAN attack makes it possible to gain access to the kernel of the operating system. At the same time, potentially the same vulnerabilities can be in Qualcomm and Samsung processors, but this has not yet been confirmed.

The technical side of the attack is based on the Pointer Authentication function. It is used to check Pointer Authentication Codes (PACs), allowing only code-signed software to run. However, the PACMAN method allows you to select the necessary PAC values. In part, this technique is similar to Specter and Meltdown in Intel processors.

At the same time, Apple spokesman Scott Radcliffe said that the vulnerability does not pose an immediate threat to users and is not sufficient in itself to bypass operating system protections.

A few years ago, a vulnerability was already found in Arm processors that allows an attacker to gain unauthorized access to data.

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Security

So much for Unisoc. Companies have discovered a vulnerability in single-chip systems

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So much for Unisoc Companies have discovered a vulnerability in

Unisoc is actively capturing the market for single-chip systems, although it does so exclusively in the budget segment itself. However, it turned out that these platforms have a critical vulnerability.

So much for Unisoc.  Companies have discovered a vulnerability in single-chip systems

According to the source, the problem is in the modem’s firmware and affects both 4G and 5G platforms. The vulnerability, numbered CVE-2022-20210, was discovered while scanning Non-Access Stratum (NAS) message handlers. This vulnerability could be used to neutralize or block the device’s cellular capabilities.

The vulnerability was first discovered in the Motorola Moto G20 smartphone based on the Unisoc T700 SoC. But in the end it turned out that the same vulnerability occurs in other platforms, however, the source did not provide a list.

The Check Point specialists who discovered the vulnerability notified Unisoc back in May, and the company has already released a fix, so smartphone owners should not worry now if they update the software of their devices.

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Security

New vulnerability in Microsoft Office is heavily exploited by hackers

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New vulnerability in Microsoft Office is heavily exploited by hackers

A serious vulnerability has been found in the Microsoft Office suite that could potentially allow attackers to execute arbitrary code.

New vulnerability in Microsoft Office is heavily exploited by hackers

She was assigned the number CVE-2022-30190, and among the researchers they gave the name Follina. As noted in Kaspersky Lab, the most unpleasant thing is that there is no fix yet, and in the meantime, the vulnerability is already being actively exploited by attackers. Vulnerability CVE-2022-30190 threatens all operating systems of the Windows family, both regular and server.

While the update is being developed, experts recommend that all Windows users and administrators take advantage of temporary workarounds. As a Microsoft workaround recommends disable the MSDT URL protocol.

The CVE-2022-30190 vulnerability itself is contained in the Microsoft Windows Support Diagnostic Tool (MSDT), but due to the implementation of this tool, a single malicious office document is enough to exploit the vulnerability.

The scheme could be like this. Attackers create a malicious office document and slip it to the victim, for example by sending an email with an attachment. The infected file contains a link to an HTML file that contains JavaScript code that executes malicious code on the command line via MSDT. As a result, attackers are able to install programs, view, modify or destroy data, as well as create new accounts – that is, do everything that the privileges of the user who opened the infected file allow.

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