Microsoft working on OS update to prevent another IT outage
Existing low-level access for security solutions will undergo a rework
North Korean threat actor Citrine Sleet exploiting Chromium zero-day
Microsoft observed North Korean threat actor Citrine Sleet exploiting the CVE-2024-7971 zero-day vulnerability in Chromium. Citrine Sleet targets the cryptocurrency sector for financial gain.
Microsoft Copilot Studio Vulnerability Led to Information Disclosure
A vulnerability in Microsoft Copilot Studio could be exploited to access sensitive information on the internal infrastructure used by the service, Tenable reports. The flaw, tracked as CVE-2024-38206 (CVSS score of 8.5) and described as a ‘critical’ information disclosure bug, has been fully mitigated, Microsoft said in an August 6 advisory.
How multiple vulnerabilities in Microsoft apps for macOS pave the way to stealing permissions
An adversary could exploit these vulnerabilities by injecting malicious libraries into Microsoft's applications to gain their entitlements and user-granted permissions.
Windows driver zero-day exploited by Lazarus hackers to install rootkit
The notorious North Korean Lazarus hacking group exploited a zero-day flaw in the Windows AFD.sys driver to elevate privileges and install the FUDModule rootkit on targeted systems. #BYOVD #Bring #CVE-2024-38193 #Driver #Group #Lazarus #Microsoft #Own #Vulnerability #Your #Zero-Day
Chained for attack: OpenVPN vulnerabilities discovered leading to RCE and LPE | Microsoft Security Blog
Microsoft researchers found multiple vulnerabilities in OpenVPN that could lead to an attack chain allowing remote code execution and local privilege escalation. This attack chain could enable attackers to gain full control over targeted endpoints, potentially resulting in data breaches, system compromise, and unauthorized access to sensitive information.
Iran Targeting 2024 US Election
Discover how Iran is allegedly targeting the 2024 US election, the potential impacts, and the measures being taken to safeguard the democratic process.
Windows Update Flaws Allow Undetectable Downgrade Attacks
Researcher showcases hack against Microsoft Windows Update architecture, turning fixed vulnerabilities into zero-days.
CrowdStrike says it isn't to blame for Delta's flight cancellations after July outage
Delta CEO Ed Bastian said the company plans to seek compensation from Microsoft and CrowdStrike.
'Error' in Microsoft's DDoS defenses amplified Azure outage
o you have problems configuring Microsoft's Defender? You might not be alone: Microsoft admitted that whatever it's using for its defensive implementation exacerbated yesterday's Azure instability. No one has blamed the actual product named "Windows Defender," we must note. According to Microsoft, the initial trigger event for yesterday's outage, which took out great swathes of the web, was a distributed denial-of-service (DDoS) attack. Such attacks are hardly unheard of, and an industry has sprung up around warding them off.
Microsoft says massive Azure outage was caused by DDoS attack
Microsoft confirmed today that a nine-hour outage on Tuesday, which took down and disrupted multiple Microsoft 365 and Azure services worldwide, was triggered by a distributed denial-of-service (DDoS) attack.
Ransomware operators exploit ESXi hypervisor vulnerability for mass encryption | Microsoft Security Blog
Microsoft researchers have uncovered a vulnerability in ESXi hypervisors being exploited by several ransomware operators to obtain full administrative permissions on domain-joined ESXi hypervisors. ESXi is a bare-metal hypervisor that is installed directly onto a physical server and provides direct access and control of underlying resources. ESXi hypervisors host virtual machines that may include critical servers in a network. In a ransomware attack, having full administrative permission on an ESXi hypervisor can mean that the threat actor can encrypt the file system, which may affect the ability of the hosted servers to run and function. It also allows the threat actor to access hosted VMs and possibly to exfiltrate data or move laterally within the network.
Windows Security best practices for integrating and managing security tools
In this blog post, we examine the recent CrowdStrike outage and provide a technical overview of the root cause. We also explain why security products use kernel-mode drivers today and the safety measures Windows provides for third-party solutions. In addition, we share how customers and security vendors can better leverage the integrated security capabilities of Windows for increased security and reliability. Lastly, we provide a look into how Windows will enhance extensibility for future security products.
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Microsoft calls for Windows changes and resilience after CrowdStrike outage
Microsoft has started responding with changes it wants to see in the wake of the CrowdStrike botched update. It looks like Windows kernel access is on the agenda.
Helping our customers through the CrowdStrike outage
On July 18, CrowdStrike, an independent cybersecurity company, released a software update that began impacting IT systems globally. Although this was not a Microsoft incident, given it impacts our ecosystem, we want to provide an update on the steps we’ve taken with CrowdStrike and others to remediate and support our customers.
Uncoordinated Vulnerability Disclosure: The Continuing Issues with CVD
On patch Tuesday last week, Microsoft released an update for CVE-2024-38112, which they said was being exploited in the wild. We at the Trend Micro Zero Day Initiative (ZDI) agree with them because that’s what we told them back in May when we detected this exploit in the wild and reported it to Microsoft. However, you may notice that no one from Trend or ZDI was acknowledged by Microsoft. This case has become a microcosm of the problems with coordinated vulnerability disclosure (CVD) as vendors push for coordinated disclosure from researchers but rarely practice any coordination regarding the fix. This lack of transparency from vendors often leaves researchers who practice CVD with more questions than answers.
Microsoft employee accidentally publishes PlayReady code
[German]A Microsoft software developer has accidentally shared internal PlayReady source code with the public (a developer forum). The data leak of 4 GByte is sufficient to compile the required DLL from the source code. This could be a real boon for people who want to reverse engineering or crack PlayReady. What is PlayReady? PlayReady is...
New attack uses MSC files and Windows XSS flaw to breach networks
A novel command execution technique dubbed 'GrimResource' uses specially crafted MSC (Microsoft Saved Console) and an unpatched Windows XSS flaw to perform code execution via the Microsoft Management Console.
Zero-Click Critical Microsoft Outlook Vulnerability. What You Need to Know.
Critical Microsoft Outlook vulnerability, CVE-2024-30103, and step-by-step instructions to force an update to all your end points.
Security bug allows anyone to spoof Microsoft employee emails
A researcher has found a way to impersonate Microsoft corporate email accounts, which could make phishing attacks harder to spot.
Microsoft Refused to Fix Flaw Years Before SolarWinds Hack
Former employee says software giant dismissed his warnings about a critical flaw because it feared losing government business. Russian hackers later used the weakness to breach the National Nuclear Security Administration, among others.
You’ve Got Mail: Critical Microsoft Outlook Vulnerability Executes as Email is Opened
Morphisec researchers have identified a critical Microsoft Outlook vulnerability, CVE-2024-30103, and detail its technical impact and recommended actions.
Malicious VSCode extensions with millions of installs discovered
A group of Israeli researchers explored the security of the Visual Studio Code marketplace and managed to
Microsoft hit with EU privacy complaints over schools' use of 365 Education suite
Microsoft's education-focused flavor of its cloud productivity suite, Microsoft 365 Education, is facing investigation in the European Union. Privacy
Analysts join the call for Microsoft to recall Recall
If Microsoft intended the 2024 Build event to be overshadowed by controversy then it succeeded as calls intensify for the company to rethink its strategy around Recall. The Windows Recall feature, still in preview, takes a snapshot of a Copilot+ PC user's screen every couple of seconds and then sends it to disk, letting the user scroll the archive of snapshots when looking for something or use an AI system to recall screenshots by text.
Cyber Signals: Inside the growing risk of gift card fraud
In the ever-evolving landscape of cyberthreats, staying ahead of malicious actors is a constant challenge. The latest edition of Cyber Signals dives deep into the world of Storm-0539, also known as Atlas Lion, shedding light on their sophisticated methods of gift and payment card theft.
Microsoft will require MFA for all Azure users
Multi-factor authentication makes you, your company and your cloud investments safer
Threat actors misusing Quick Assist in social engineering attacks leading to ransomware
Microsoft Threat Intelligence has observed Storm-1811 misusing the client management tool Quick Assist to target users in social engineering attacks that lead to malware like Qakbot followed by Black Basta ransomware deployment.
Employee Personal GitHub Repos Expose Internal Azure and Red Hat Secrets
Our research reveals that personal repositories often expose sensitive corporate data, leading to severe security breaches
Watch out for tech support scams lurking in sponsored search results
Our researchers found fake sponsored search results that lead consumers to a typical fake Microsoft alert site set up by tech support scammers.