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Black Arrow Cyber Threat Briefing 08 September 2023

Black Arrow Cyber Threat Intelligence Briefing 08 September 2023:

-More Than Half of UK Organisations Know They Aren’t Well Protected

-Generative AI Considered a Security Risk by 60% of Board Members: How Organisations Can Prepare

-Businesses Ignore Incident Response at Their Peril

-Blame Culture: An Organisation’s Ticking Time Bomb

-Spend to Save: CFO’s and Cyber Security Investment

-Cyber Security Tools Are New Targets for Attackers, including Nation-State Actors

-Attackers Access UK Military Data Through Third Party Supplier as Relentless Russian Cyber Attacks Raise Spectre of WW3

-Common Tactics Used by Threat Actors to Weaponise PDFs

-Years-old Microsoft Security Holes Still Hot Targets for Cyber Criminals

-Popular ‘As-a-Service’ Operations Have Earned Cyber Criminals over $64m

-71% of Organisations are Impacted by Cyber Security Skills Shortage

-Multiple Schools Hit by Cyber Attacks Before Term Begins

Welcome to this week’s Black Arrow Cyber Threat Briefing – a weekly digest, collated and curated by our cyber experts to provide senior and middle management with an easy to digest round up of the most notable threats, vulnerabilities, and cyber related news from the last week.

Top Cyber Stories of the Last Week

More Than Half of UK Organisations Know They Aren’t Well Protected

According to a recent report, just 49% of business leaders report their organisation is well or very well protected. Cyber security featured as the third highest-rated business priority, with increasing revenues and reducing costs forming the top two. One of the ways an organisation can reduce cost is to outsource, and 63% of respondents agreed, reporting that they wanted to work with an external cyber security partner to improve their security.

Even if you’re in the 49% of organisations that believes it is well protected, this can be a dangerous self-assessment based on a lack of experience and impartiality. Business leaders need independent assurance to ensure their security controls are appropriate and in line with the organisation’s risk appetite. It is essential to dispel assumptions, by investigating your security before an attacker does.

Black Arrow Cyber Consulting offers a free, no-obligation, introductory consultation to help you gain an unbiased perspective on how your current security approach could withstand an attacker. We help our clients to know the questions to ask of their external or internal IT provider, and how to leverage other security controls from existing resources.

Sources: [IT Security Guru][Beta News]

Generative AI Considered a Security Risk by 60% of Board Members. How Organisations Can Prepare

A recent report conducted by Proofpoint found that 60% of board members consider generative AI a security risk.

The rapid development and adoption of AI is double-edged in nature. Whilst it can yield positive benefits if used safely and responsibility within organisations, AI is also being used to great effect by malicious actors with AI abuse growing beyond phishing to increasing the efficacy of multistage attacks, being used to generated malware, and carrying out different types of social engineering attacks.

For this reason Boards and senior leaders are right to be concerned and should ensure appropriate measures are being taken.

Sources: [TheNationalNews] [SCMagazine] [CyberSecurityNews]

Further reading: [BusinessCloud.co.uk] [WIRED UK] [Help Net Security]

Businesses Ignore Incident Response at Their Peril

According to a UK Government report, a quarter of businesses don’t regard cyber incident response skills as essential and almost half said they weren’t confident they could put together an incident response plan. This led to 41% saying they were not very or not at all confident that they would be able to deal with a cyber security breach or attack.

Unfortunately, this leaves many organisations in a situation where they will have to learn the hard way about the implications of not having an incident response plan. A separate government report found that 37% of those hit by a cyber attack said it impacted operations and a quarter experienced negative consequences such as loss of money or data.

One of the ways organisations can circumnavigate their lack of confidence in their ability to construct an incident response plan is to use cyber security experts to construct it. 

Source: [Infosecurity Magazine]

Blame Culture: An Organisation’s Ticking Time Bomb

An organisation’s attitude and responses to cyber security are almost as important as the actions taken to prevent cyber attacks. “Lessons learnt” are a common feature within mature and cyber resilient organisations. Incidents are a matter of when not if, and it is important that organisations know how to react.

Taking the example of a phishing attack, it is easy to blame the employee who opened it, potentially firing them. With phishing simulations, it is equally easy to discipline an employee who fell for it. The problem is, neither of these focus on what can be learned, such as why the employee fell for it in the first place. Additionally, there is the potential that employees become reserved or reticent about reporting potential events, due to the fear of being disciplined. This can be the difference between an organisation having an early detection of an incident and being able to invoke incident response plans sooner, or leaving the attacker in the system doing damage for longer before being reported.

Source: [ IT Security Guru]

Spend to Save: CFOs and Cyber Security Investment

For chief financial officers (CFOs), the increasing impact of data breaches creates a paradox. While more spending is necessary to combat these challenges, this spending isn’t directly tied to profit. Instead, cyber security spending is all about return on investment.

When looking at spending, CFOs need to keep in mind that the total cost of a breach is more than the initial currency loss: there is the knock-on effect of reputation and losses in customers. But it is not a case of spending more to protect more; spending must be tailored to the organisation and prioritise in terms of business needs.

Source: [Security Intelligence]

Cyber Security Tools Are New Targets for Attackers, Including Nation-State Actors

An increasing number of attacks by nation-state attackers are targeting cyber security tools in their campaigns. This includes the recent attacks on US officials which attacked and gained access through the firewalls of the victim. Security vendors, just like anyone, will have flaws in their software: there will be vulnerabilities. As such, organisations need to be aware of these vulnerabilities and when support runs out for their cyber security tools, to better protect themselves.

Source: [News Week]

Attackers Access UK Military Data Through Third Party Supplier as Relentless Russian Cyber Attacks Raise Spectre of WW3

Top secret military data from the UK’s Ministry of Defence was stolen and then sold by the ransomware gang LockBit. How, you might ask? Through a rogue Windows 7 PC that belonged to their fencing supplier, Zaun. The LockBit Ransom group conducted the attack on the supplier’s network, and Zaun admitted the group may have exfiltrated 10GB of data.

Many attackers have realised that if you cannot directly attack an organisation, then the supplier can present a way in. Organisations need to be sure of their suppliers’ security, and conduct third party security assessments to identify the risk the supplier may present to the organisation itself.

Black Arrow have helped many clients carry out third party risk assessments on a large number of suppliers and this can be done as a standalone offering or as part of a fractional CISO engagement.

Source: [The Register] [Tech Monitor]

Common Tactics Used by Threat Actors to Weaponise PDFs

PDFs are often seen as safe, something that cannot be used by an attacker, but that’s wrong. Actors are using this trustworthiness, as well as the difficulty in detection and ubiquity of PDFs, to weaponise them. Common tactics involve malicious hyperlinks within PDFs and macros that run when a PDF is opened, and in some cases attackers are disguising a malicious Word document as a PDF to evade detection.

Source: [Cyber Security News]

Years-old Microsoft Security Holes Still Hot Targets for Cyber Criminals

A recent report has found that Microsoft vulnerabilities as old as 6 years are still being exploited, with one recorded as being exploited as recently as 31 August. In fact, since this particular vulnerability was fixed, it has been used to deploy 467 different malware types. This is not the number of attacks, but the number of different types of malware used in attacks.

The concept isn’t just for Microsoft. Many organisations do not employ effective patching strategies, and as such leave the doors open to attackers. Sometimes, these doors are open for years.

Source: [The Register]

Popular ‘As-a-Service’ Operations Have Earned Cyber Criminals over $64m

As-a-service operations allow attackers to employ sophisticated attacks without the need for extensive knowledge; they simply just purchase the ability.  Take phishing-as-a-service (PhaaS), where an attacker with very limited cyber knowledge simply needs to purchase a phishing kit and they are then well-equipped to target organisations. This availability in tools creates a significant surge in the number of cyber criminals, with one scheme alone raking in $64.5 billion in illegal gains.

Source: [IT Security Guru]

71% of Organisations are Impacted by Cyber Security Skills Shortage

Most organisations (71%) report that they’ve been impacted by the cyber security skills shortage, leading to an increased workload for the cyber security team (61%), unfilled open job requisitions (49%) and high burnout among staff (43%). Further, 95% respondents state the cyber security skills shortage and its associated impacts have not improved over the past few years and 54% (up 10% from 2021) say it has got worse.

Organisations need to continue maintaining and improving their security while their cyber security positions remain unfilled. Black Arrow supports firms to achieve this by providing expert resources on a flexible basis for technical, governance and transformational positions.

Source: [Security Magazine] [Digital Journal]

Multiple Schools Hit by Cyber Attacks Before Term Begins

Ahead of the new school term, a number of schools have become the victim of serious cyber attacks. The education sector isn’t a new target, with previous ransomware reports finding the education sector to account for 16% of victims.

The education sector remains a target due to the valuable data they hold, large attack surfaces and frequently a lack of resources and budgets, something many small and medium-sized business may share.

Source: [Infosecurity Magazine]

Threats

Ransomware, Extortion and Destructive Attacks

Ransomware Victims

Phishing & Email Based Attacks

Other Social Engineering; Smishing, Vishing, etc

Artificial Intelligence

Malware

Mobile

Botnets

Denial of Service/DoS/DDOS

BYOD

Internet of Things – IoT

Data Breaches/Leaks

Organised Crime & Criminal Actors

Cryptocurrency/Cryptomining/Cryptojacking/NFTs/Blockchain

Insider Risk and Insider Threats

Fraud, Scams & Financial Crime

Impersonation Attacks

Deepfakes

AML/CFT/Sanctions

Insurance

Dark Web

Supply Chain and Third Parties

Software Supply Chain

Cloud/SaaS

Hybrid/Remote Working

Attack Surface Management

Encryption

API

Open Source

Passwords, Credential Stuffing & Brute Force Attacks

Social Media

Malvertising

Parental Controls and Child Safety

Regulations, Fines and Legislation

Models, Frameworks and Standards

Backup and Recovery

Careers, Working in Cyber and Information Security

Law Enforcement Action and Take Downs

Privacy, Surveillance and Mass Monitoring

Misinformation, Disinformation and Propaganda

Nation State Actors, Advanced Persistent Threats (APTs), Cyber Warfare and Cyber Espionage

Russia

China

Iran

North Korea

Misc Nation State/Cyber Warfare

Vulnerability Management

Vulnerabilities

Sector Specific

Industry specific threat intelligence reports are available.

Contact us to receive tailored reports specific to the industry/sector and geographies you operate in.

·         Automotive

·         Construction

·         Critical National Infrastructure (CNI)

·         Defence & Space

·         Education & Academia

·         Energy & Utilities

·         Estate Agencies

·         Financial Services

·         FinTech

·         Food & Agriculture

·         Gaming & Gambling

·         Government & Public Sector (including Law Enforcement)

·         Health/Medical/Pharma

·         Hotels & Hospitality

·         Insurance

·         Legal

·         Manufacturing

·         Maritime

·         Oil, Gas & Mining

·         OT, ICS, IIoT, SCADA & Cyber-Physical Systems

·         Retail & eCommerce

·         Small and Medium Sized Businesses (SMBs)

·         Startups

·         Telecoms

·         Third Sector & Charities

·         Transport & Aviation

·         Web3

As usual, contact us to help assess where your risks lie and to ensure you are doing all you can do to keep you and your business secure.

Look out for our ‘Cyber Tip Tuesday’ video blog and on our YouTube channel.

You can also follow us on Facebook, Twitter and LinkedIn.

Links to articles are for interest and awareness and linking to or reposting external content does not endorse any service or product, likewise we are not responsible for the security of external links.

Read More
Black Arrow Admin Black Arrow Admin

Black Arrow Cyber Threat Briefing 28th July 2023

Black Arrow Cyber Threat Briefing 28 July 2023:

-Half of UK businesses Struggle to Fill Cyber Security Skills Gap as Companies Encounter Months-long Delays in Filling Critical Security Positions

-Deloitte Joins fellow Big Four MOVEit victims PWC, EY as MOVEit Victims Exceeds 500

-Why Cyber Security Should Be Part of Your ESG Strategy

-Lawyers Take Frontline Role in Business Response to Cyber Attacks

-Organisations Face Record $4.5M Per Data Breach Incident

-Cryptojacking Soars as Cyber Attacks Diversify

-Ransomware Attacks Skyrocket in 2023

-Blocking Access to ChatGPT is a Short-Term Solution to Mitigate AI Risk

-Protect Your Data Like Your Reputation Depends on It (Because it Does)

-Why CISOs Should Get Involved with Cyber Insurance Negotiation

-Companies Must Have Corporate Cyber Security Experts, SEC Says

-Over 400,000 Corporate Credentials Stolen by Info-stealing Malware

Welcome to this week’s Black Arrow Cyber Threat Briefing – a weekly digest, collated and curated by our cyber experts to provide senior and middle management with an easy to digest round up of the most notable threats, vulnerabilities, and cyber related news from the last week.

Top Cyber Stories of the Last Week

  • Half of UK Businesses Struggle to Fill Cyber Security Skills Gap

Half of UK businesses have a cyber security skills gap that they are struggling to fill amid a challenging labour market, according to data published by the UK Department for Science, Innovation and Technology (DSIT), which found that there were more than 160,000 cyber security job postings in the last year – a 30% increase on the previous period. In all, the UK requires an additional 11,200 people with suitable cyber skills to meet the demands of the market, the report estimates.

In a separate report, it was found that a lack of executive understanding and an ever-widening talent gap is placing an unsustainable burden on security teams to prevent business-ending breaches. When asked how long it takes to fill a cyber security role, 82% of organisations report it takes three months or longer, with 34% reporting it takes seven months or more. These challenges have led one-third (33%) of organisations to believe they will never have a fully-staffed security team with the proper skills.

With such a gap, some organisations have turned to outsourcing cyber security roles, such as chief information security officers (CISOs), leading to a rise in virtual CISOs (vCISO). With outsourcing, organisations can ensure that they are easily able to pick up and use cyber security experts, greatly reducing the delay were they to hire. Black Arrow supports clients as their vCISO with specialist experience in cyber security risk management in a business context.

https://www.uktech.news/cybersecurity/uk-cybersecurity-skills-gap-20230725

https://www.helpnetsecurity.com/2023/07/26/security-teams-executive-burden/

  • Deloitte Joins Fellow Big Four MOVEit victims PWC, EY as Victims Exceed 500

The global auditing and accounting firm Deloitte appeared alongside a further 55 MOVEit victims that were recently named by the Cl0p ransomware gang, making them the third Big Four accounting firm to be affected and amongst over 500 organisations in total with that number expected to continue to increase.

Research by Kroll has also uncovered a new exfiltration method used by Cl0p in their the MOVEit attacks, highlighting constant efforts by the ransomware gang. Worryingly, it has been reported that Cl0p have made between $75-100 million from ransom payments and it is expected this, along with the victim count, will rise.

https://cybernews.com/security/deloitte-big-four-moveit-pwc-ey-clop/

https://www.kroll.com/en/insights/publications/cyber/moveit-vulnerability-investigations-uncover-additional-exfiltration-method

https://www.infosecurity-magazine.com/news/clop-could-make-100m-moveit/

  • Why Cyber Security Should Be Part of Your ESG Strategy

Organisations need to consider cyber security risks in their overall environmental, social and governance (ESG) strategy amid growing cyber threats and regulatory scrutiny. The ESG programme is, in many ways, a form of risk management to mitigate the risks to businesses, societies and the environment, all of which can be impacted by cyber security. The investment community has been singling out cyber security as one of the major risks that ESG programmes will need to address due to the potential financial losses, reputational damage and business continuity risks posed by a growing number of cyber attacks and data breaches.

Various ESG reporting frameworks have emerged in recent years to provide organisations with guidelines on how they can operate ethically and sustainably, along with metrics that they can use to measure their progress. There are also specific IT security standards and frameworks, including ISO 27001 and government guidelines. Some regulators have gone as far as mandating the adoption of baseline security standards by critical infrastructure operators and firms in industries like financial services, but that does not mean organisations outside of regulated sectors are less pressured to shore up their cyber security posture.

https://www.computerweekly.com/news/366545432/Why-cyber-security-should-be-part-of-your-ESG-strategy

  • Lawyers Take Frontline Role in Business Response to Cyber Attacks

Cyber security risk has shot to the top of general counsels’ agendas as the sophistication and frequency of attacks has grown. According to security company Sophos’s State of Ransomware 2023 report, 44% of UK businesses surveyed said they had been hit with ransomware in the past year. Of those affected, 33% said their data was encrypted and stolen and a further 6% said that their data was not encrypted but they experienced extortion.

In-house lawyers have a key role around the boardroom table when dealing with a breach including war-gaming and discussing cases in which a company will pay a ransom. The advent of General Data Protection Regulation (GDPR) legislation in Europe, and equivalents elsewhere, demands that businesses hit by a data breach notify a regulator, and the individuals whose data was stolen, or both, depending on certain factors. This has led to far greater exposure of cyber incidents which companies previously could have tried to deal with privately.

https://www.ft.com/content/2af44ae8-78fc-4393-88c3-0d784a850331

  • Organisations Face Record $4.5M Per Data Breach Incident

In a recent report conducted by IBM, the average cost per data breach for US business in 2023 jumped to $4.45 million, a 15% increase over three years. In the UK, the average cost was found to be £3.4 million, rising to £5.3 million for financial services. It is likely that the cost per breach will maintain a continual rise, with organisations struggling to crack down on cyber crime, something threat groups like Cl0p are taking advantage of.

https://www.darkreading.com/attacks-breaches/orgs-record-4.5m-data-breach-incident

https://uk.newsroom.ibm.com/24-07-2023-IBM-Security-Report-Cost-of-a-Data-Breach-for-UK-Businesses-Averages-3-4m

  • Cryptojacking Soars as Cyber Attacks Diversify

According to a recent report, a variety of attacks have increased globally, including cryptojacking (399%), IoT malware (37%) and encrypted threats (22%). This reflects the increase in actors who are changing their methods of attacks. The report found that we can expect more state-sponsored activity targeting a broader set of victims in 2023, including SMBs, government entities and enterprises.

Cryptojacking, sometimes referred to as malicious cryptomining, is where an attacker will use a victim’s device to mine cryptocurrency, giving the attacker free money at the expense of your device, network health and electricity.

https://www.helpnetsecurity.com/2023/07/27/cryptojacking-attacks-rise/

  • Ransomware Attacks Skyrocket in 2023

Ransomware attacks surged by 74% in Q2 2023 compared to the first three months of the year, a new report has found. The significant increase in ransomware over April, May and June 2023 suggests that attackers are regrouping. In July 2023, the blockchain analysis firm Chainalysis found that in the first half of 2023, ransomware attackers extorted $176m more than the same period in 2022, reversing a brief downward trend in 2022.

The report also observed an uptick in “pure extortion attacks,” with cyber criminals increasingly relying on the threat of data leaks rather than encrypting data to extort victims. Such schemes may not trigger any ransomware detection capability but could potentially be picked up by a robust Data Loss Prevention (DLP) solution.

https://www.infosecurity-magazine.com/news/ransomware-attacks-skyrocket-q2/

  • Blocking Access to ChatGPT is a Short-Term Solution to Mitigate AI Risk

Despite the mass adoption of generative AI, most companies don’t know how to assess its security, exposing them to risks and disadvantages if they don’t change their approach. A report found that for every 10,000 enterprise users, an enterprise organisation is experiencing approximately 183 incidents of sensitive data being posted to ChatGPT per month. Worryingly, despite the security issues, only 45% have an enterprise-wide strategy to ensure a secure, aligned deployment of AI across the entire organisation.

Blocking access to AI related content and AI applications is a short term solution to mitigate risk, but comes at the expense of the potential benefits that AI apps offer to supplement corporate innovation and employee productivity. The data shows that in financial services and healthcare nearly 1 in 5 organisations have implemented a blanket ban on employee use of ChatGPT, while in the technology sector, only 1 in 20 organisations have done likewise.

https://www.helpnetsecurity.com/2023/07/28/chatgpt-exposure/

https://www.techradar.com/pro/lots-of-sensitive-data-is-still-being-posted-to-chatgpt

https://www.helpnetsecurity.com/2023/07/25/generative-ai-strategy/

  • Protect Your Data Like Your Reputation Depends on It (Because it Does)

Data breaches can be incredibly costly. Be it lawsuits, regulatory fines, or a fall in stock price, the financial consequences of a breach can bring even the largest organisation to its knees. However, in the face of economic damage, it’s too easy to overlook the vast reputational impacts that often do more harm to a business. After all, it’s relatively easy to recoup monetary losses, less so to regain customer trust.

It’s important to remember that reputational damage isn’t limited to consumer perceptions. Stakeholder, shareholder, and potential buyer perception is also something that needs to be considered. By having effective defence in depth controls including robust data loss prevention (DLP) solutions in place, organisations can reduce the risk of a breach from happening.

https://informationsecuritybuzz.com/protect-your-data-like-your-reputation-depends-on-it-because-it-does/

  • Why CISOs Should Get Involved with Cyber Insurance Negotiation

Generally negotiating cyber insurance policies falls to the general counsel, chief financial officer, or chief operations officer. Having the chief information security officer (CISO) at the table when negotiating with insurance brokers or carriers is a best practice for ensuring the insurers understand not only which security controls are in place, but why the controls are configured the way they are and the organisation's strategy. That said, often best practices are ignored for reasons of expediency and lack of acceptance by other C-suite executives.

Sometimes being the CISO can be a no-win position. According to a recent survey more than half of all CISOs report to a technical corporate officer rather than the business side of the organisation. This lack of recognition by the board can diminish the CISO's ability to deliver business-imperative insights and recommendations, leaving operations to have a more commanding influence on the board than cyber security. Too often the CISO gets the responsibility to protect the company without the authority and budget to accomplish their task.

https://www.darkreading.com/edge-articles/why-cisos-should-get-involved-with-cyber-insurance-negotiation

  • Companies Must Have Corporate Cyber Security Experts, SEC Says

A recent report has found that only five Fortune 100 companies currently list a security professional in the executive leadership pages of their websites. This is largely unchanged from five of the Fortune 100 in 2018. One likely reason why a great many companies still don’t include their security leaders within their highest echelons is that these employees do not report directly to the company’s CEO, board of directors, or chief risk officer.

The chief security officer (CSO) or chief information security officer (CISO) position traditionally has reported to an executive in a technical role, such as the chief technology officer (CTO) or chief information officer (CIO). But workforce experts say placing the CISO/CSO on unequal footing with the organisation’s top leaders makes it more likely that cyber security and risk concerns will take a backseat to initiatives designed to increase productivity and generally grow the business.

The US Securities and Exchange Commission (SEC) has recently implemented new regulations necessitating publicly traded companies to report cyber attacks within four business days, once they're deemed material incidents. While the SEC is not presently advocating for the need to validate a board cyber security expert's credentials, it continues to insist that cyber security expertise within management be duly reported to them. The increased disclosure should help companies compare practices and may spur improvements in cyber defences, but meeting the new disclosure standards could be a bigger challenge for smaller companies with limited resources.

https://www.darkreading.com/edge-articles/companies-must-have-corporate-cybersecurity-experts-sec-says

https://www.bleepingcomputer.com/news/security/sec-now-requires-companies-to-disclose-cyberattacks-in-4-days/

https://krebsonsecurity.com/2023/07/few-fortune-100-firms-list-security-pros-in-their-executive-ranks/

  • Over 400,000 Corporate Credentials Stolen by Info-stealing Malware

Information stealers are malware that steal data stored in applications such as web browsers, email clients, instant messengers, cryptocurrency wallets, file transfer protocol (FTP) clients, and gaming services. The stolen information is packaged into archives called 'logs,' which are then uploaded back to the threat actor for use in attacks or sold on cyber crime marketplaces. Worryingly, employees use personal devices for work or access personal stuff from work computers, and this may result in many info-stealer infections stealing business credentials and authentication cookies. A report has found there are over 400,000 corporate credentials stolen, from applications such as Salesforce, Google Cloud and AWS. Additionally, there was a significant increase in the number containing OpenAI credentials; this is alarming as where AI is used without governance, the credentials may leak things such as internal business strategies and source code.

With such an array of valuable information for an attacker, it is no wonder incidents involving info stealers doubled in Q1 2023. Organisations can best protect themselves by utilising password managers, enforcing multi-factor authentication and having strict usage controls. Additionally, user awareness training can help avoid common infection channels such as malicious websites and adverts.

https://www.bleepingcomputer.com/news/security/over-400-000-corporate-credentials-stolen-by-info-stealing-malware/

https://www.scmagazine.com/news/infostealer-incidents-more-than-doubled-in-q1-2023

Governance, Risk and Compliance

Threats

Ransomware, Extortion and Destructive Attacks

Ransomware Victims

Phishing & Email Based Attacks

BEC – Business Email Compromise

Artificial Intelligence

Malware

Mobile

Botnets

Denial of Service/DoS/DDOS

BYOD

Internet of Things – IoT

Data Breaches/Leaks

Organised Crime & Criminal Actors

Cryptocurrency/Cryptomining/Cryptojacking/NFTs/Blockchain

Fraud, Scams & Financial Crime

Insurance

Dark Web

Supply Chain and Third Parties

Software Supply Chain

Cloud/SaaS

Shadow IT

Encryption

API

Open Source

Passwords, Credential Stuffing & Brute Force Attacks

Social Media

Training, Education and Awareness

Travel

Parental Controls and Child Safety

Regulations, Fines and Legislation

Data Protection

Careers, Working in Cyber and Information Security

Law Enforcement Action and Take Downs

Privacy, Surveillance and Mass Monitoring

Misinformation, Disinformation and Propaganda

Nation State Actors, Advanced Persistent Threats (APTs), Cyber Warfare and Cyber Espionage

Russia

China

North Korea

Misc/Other/Unknown

Vulnerability Management

Vulnerabilities

Tools and Controls

Sector Specific

Industry specific threat intelligence reports are available.

Contact us to receive tailored reports specific to the industry/sector and geographies you operate in.

·       Automotive

·       Construction

·       Critical National Infrastructure (CNI)

·       Defence & Space

·       Education & Academia

·       Energy & Utilities

·       Estate Agencies

·       Financial Services

·       FinTech

·       Food & Agriculture

·       Gaming & Gambling

·       Government & Public Sector (including Law Enforcement)

·       Health/Medical/Pharma

·       Hotels & Hospitality

·       Insurance

·       Legal

·       Manufacturing

·       Maritime

·       Oil, Gas & Mining

·       OT, ICS, IIoT, SCADA & Cyber-Physical Systems

·       Retail & eCommerce

·       Small and Medium Sized Businesses (SMBs)

·       Startups

·       Telecoms

·       Third Sector & Charities

·       Transport & Aviation

·       Web3

As usual, contact us to help assess where your risks lie and to ensure you are doing all you can do to keep you and your business secure.

Look out for our ‘Cyber Tip Tuesday’ video blog and on our YouTube channel.

You can also follow us on Facebook, Twitter and LinkedIn.

Links to articles are for interest and awareness and linking to or reposting external content does not endorse any service or product, likewise we are not responsible for the security of external links.

Read More
Black Arrow Admin Black Arrow Admin

Black Arrow Cyber Advisory 25 July 2023 – ‘Zenbleed’ Vulnerability Affecting AMD Zen2 Processors

Black Arrow Cyber Advisory 25 July 2023 – ‘Zenbleed’ Vulnerability Affecting AMD Zen2 Processors

Executive Summary

A vulnerability dubbed as ‘Zenbleed’ was discovered in AMD's Zen2 microarchitecture which could enable an malicious attacker to steal sensitive data, such as passwords and encryption keys. The Zenbleed vulnerability has been found to affect all AMD Zen 2 processors, including various models of the Ryzen processor and EPYC processor series.  Zenbleed requires local account access to the target system and a high degree of specialization and knowledge to exploit, however a proof of concept has now been publicly released.

What’s the risk to me or my business?

Exploitation of this vulnerability could compromise the confidentiality of data held or accessed through an affected device, allowing an attacker to gain unauthorised access to sensitive data. In addition, detection of the exploitation has been reported as almost impossible due to there being no requirement for elevated privileges to perform the attack. This vulnerability could also allow a malicious actor on a shared tenancy environment to access information running on the same server from a different tenant.

What can I do?

This vulnerability affects all Zen 2 class processors and as such it is essential to prioritise the patching of the upcoming updates to protect devices from this vulnerability when they become available. AMD has released a security bulletin detailing the AGESA Firmware updates which will be included within the BIOS updates for affected processors, and have classified the vulnerability as ‘Medium’ severity. Microcode updates have been created for the affected AMD EPYC processors, however updates for the Desktop, Mobile, High-end Desktop and Workstation processors are scheduled for later in the year. Once OEM’s have released BIOS updates it is strongly recommended that they are applied after appropriate testing has taken place.

In the meantime, a workaround has been recommended by the security researcher who discovered the vulnerability. If you are unsure whether you are impacted or how to implement the mitigation, then you should contact your vendor/MSP. Please note, workarounds are not a permanent fix and Black Arrow maintains that the patches should be applied when available.

Technical Summary

CVE-2023-20593 – If successfully exploited this vulnerability allows a malicious actor to access sensitive data from any system operation including those taking place in virtual machines, isolated containers, and sandboxes.

Affected product ranges include:

  • 2nd Generation AMD EPYC “Rome” Processors

  • AMD Ryzen 3000 and 4000 series Desktop Processors

  • AMD Ryzen Threadripper 3000 and 3000WX series High End Desktop and Workstation Processors

  • AMD Ryzen 4000, 5000 and 7020 series Mobile Processors

Further details of the Zenbleed vulnerability can be found here:

https://lock.cmpxchg8b.com/zenbleed.html

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7008.html

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