Security News
Today is Microsoft's June 2023 Patch Tuesday, with security updates for 78 flaws, including 38 remote code execution vulnerabilities. While thirty-eight RCE bugs were fixed, Microsoft only listed six flaws as 'Critical,' including denial of service attacks, remote code execution, and privilege elevation.
Office Open XML Signatures, an Ecma/ISO standard used in Microsoft Office applications and open source OnlyOffice, have several security flaws and can be easily spoofed. Microsoft refers to the format simply as Open XML. The boffins say they found discrepancies in the structure of office documents and the way signatures get verified.
Microsoft stands accused by cyber intelligence firm Hold Security of violating an agreement between the pair by misusing Hold's database of more than 360 million sets of credentials culled from the dark web. In a lawsuit filed in King County Superior Court in Washington, Hold said it had an agreement with Microsoft going back to 2014 to grant the Windows giant access to its database of compromised accounts with the expectation that Microsoft would limit use to matching Hold's records against Microsoft customer accounts.
Microsoft revealed in an update to the Azure status page that the preliminary root cause behind an outage that impacted the Azure Portal worldwide on Friday was what it described as a traffic "Spike." Customers who wanted to access the Azure Portal on Friday afternoon at portal.
Security researchers have warned about an "Easily exploitable" flaw in the Microsoft Visual Studio installer that could be abused by a malicious actor to impersonate a legitimate publisher and distribute malicious extensions. "A threat actor could impersonate a popular publisher and issue a malicious extension to compromise a targeted system," Varonis researcher Dolev Taler said.
Two flaws in Microsoft software are under attack on systems that haven't been patched by admins. Redmond issued fixes for the vulnerabilities - one affecting Visual Studio and the other the Win32k subsystem - in April and May, but in separate reports this week, security researchers with Varonis Threat Labs and Numen Cyber warned that unpatched systems are already being exploited.
Microsoft announced today that users would also be able to communicate with Bing Chat, the AI-powered chat-based version of its Bing search engine, via voice commands. "We know many of you love using voice input for chat on Mobile. It's now also available on desktop by clicking on the microphone icon in the Bing Chat box," the Bing Team said.
Banking and financial services organizations are the targets of a new multi-stage adversary-in-the-middle phishing and business email compromise attack, Microsoft has revealed. "The attack originated from a compromised trusted vendor and transitioned into a series of AiTM attacks and follow-on BEC activity spanning multiple organizations," the tech giant disclosed in a Thursday report.
The Microsoft Azure Portal is down on the web as a threat actor known as Anonymous Suda claims to be targeting the site with a DDoS attack.At the same time, a threat actor known as Anonymous Sudan claims to be conducting a DDoS attack against the Microsoft Azure portal, sharing an image of the page not working.
Microsoft is investigating an ongoing outage that is preventing OneDrive customers from accessing the cloud file hosting service worldwide, just as a threat actor known as 'Anonymous Sudan' claims to be DDoSing the service. "We've reviewing OneDrive telemetry that captures this impact scenario to determine the source of the service access failures and begin identifying a mitigation plan."