Security News

Phishing attack spoofs Zoom to steal Microsoft user credentials We may be compensated by vendors who appear on this page through methods such as affiliate links or sponsored partnerships. That's exactly the case with a recent phishing campaign analyzed by security firm Armorblox in which the attacker spoofed Zoom in an attempt to compromise Microsoft user credentials.

Microsoft is investigating user reports of issues with Remote Desktop on Windows 11 systems after installing the Windows 11 2022 Update. Installing the Windows 11 22H2 feature update will cause Remote Desktop clients not to connect, randomly disconnect, or freeze unexpectedly.

Security researchers have found a new piece of malware targeting Microsoft SQL servers. Named Maggie, the backdoor has already infected hundreds of machines all over the world.

Microsoft says the Windows 11 2022 Update has a new deployment phase as it is now available to all seekers on eligible devices. "We are entering a new phase of the rollout for Windows 11, version 22H2 and we are increasing its availability to all who check for updates on eligible Windows devices," the company says on the Windows Health dashboard.

Microsoft has updated the mitigations for the latest Exchange zero-day vulnerabilities tracked as CVE-2022-41040 and CVE-2022-41082, also referred to ProxyNotShell.Reported privately to Microsoft three weeks ago, CVE-2022-41040 is a server-side request forgery that enables privilege escalation and works with CVE-2022-41082 to trigger remote code execution on on-premise Exchange server deployments.

Microsoft has revised its mitigation measures for the newly disclosed and actively exploited zero-day flaws in Exchange Server after it was found that they could be trivially bypassed. The two vulnerabilities, tracked as CVE-2022-41040 and CVE-2022-41082, have been codenamed ProxyNotShell due to similarities to another set of flaws called ProxyShell, which the tech giant resolved last year.

Microsoft is warning Exchange Online users about a rise in password spray attacks, urging those that have yet to disable Basic Authentication to at least set up authentication policies to protect their users and data. For three years, Microsoft been weaning popular software offerings like Outlook Desktop and Outlook Mobile App off Basic Auth in favor of more secure user authentication methods.

The Cybersecurity and Infrastructure Security Agency late on Friday placed the flaw - tracked as CVE-2022-36804 - on its catalog of Known Exploited Vulnerabilities, effectively a must-patch list. CISA put the vulnerability in Bitbucket Server and Data Center tools on the KEV list on the same day as two high-profile Microsoft Exchange zero-day flaws.

Scammers are impersonating security researchers to sell fake proof-of-concept ProxyNotShell exploits for newly discovered Microsoft Exchange zero-day vulnerabilities. Last week, Vietnamese cybersecurity firm GTSC disclosed that some of their customers had been attacked using two new zero-day vulnerabilities in Microsoft Exchange.

Microsoft has shared mitigations for two new Microsoft Exchange zero-day vulnerabilities tracked as CVE-2022-41040 and CVE-2022-41082, but researchers warn that the mitigation for on-premise servers is far from enough. Threat actors are already chaining both of these zero-day bugs in active attacks to breach Microsoft Exchange servers and achieve remote code execution.