Security News

It’s Patch Tuesday and still no fix for ProxyNotShell Microsoft Exchange holes
2022-10-11 22:35

Let's start off with what Redmond didn't fix: two Exchange Server bugs dubbed ProxyNotShell that have been exploited by snoops as far back as August. A month later, Zero Day Initiative purchased the bugs and disclosed them to Microsoft.

Microsoft patches Windows flaw exploited in the wild (CVE-2022-41033)
2022-10-11 18:30

October 2022 Patch Tuesday is here, with fixes for 85 CVE-numbered vulnerabilities, including CVE-2022-41033, a vulnerability in Windows COM+ Event System Service that has been found being exploited in the wild.CVE-2022-41033 is an elevation of privilege vulnerability in the Windows COM+ Event System Service, which automatically distributs events to Component Object Model components.

Microsoft October 2022 Patch Tuesday fixes zero-day used in attacks, 84 flaws
2022-10-11 17:32

Today is Microsoft's October 2022 Patch Tuesday, and with it comes fixes for an actively exploited Windows vulnerability and a total of 84 flaws. The above counts do not include twelve vulnerabilities fixed in Microsoft Edge on October 3rd. For information about the non-security Windows updates, you can read today's Windows 10 KB5018410 and KB5018419 updates and the Windows 11 KB5018427 update.

Microsoft Exchange servers hacked to deploy LockBit ransomware
2022-10-11 16:59

Lockbit ransomware affiliates are encrypting victims via Microsoft Exchange servers hacked using exploits targeting unpatched vulnerabilities. In at least one such incident from July 2022, the attackers used a previously deployed web shell on a compromised Exchange server to escalate privileges to Active Directory admin, steal roughly 1.3 TB of data, and encrypt network systems.

Caffeine service lets anyone launch Microsoft 365 phishing attacks
2022-10-10 21:47

A phishing-as-a-service platform named 'Caffeine' makes it easy for threat actors to launch attacks, featuring an open registration process allowing anyone to jump in and start their own phishing campaigns. Another distinctive characteristic of Caffeine is that its phishing templates target Russian and Chinese platforms, whereas most PhaaS platforms tend to focus on lures for Western services.

Serious Security: OAuth 2 and why Microsoft is finally forcing you into it
2022-10-10 18:02

So if we're looking at HTTP Authentication, all we're really talking about is asking you to present a credential ,which is, for most of us, a username and password in order to gain access to something. "We're not going to tell you how to do it. We're going to say you should do one of these strong authentication methods, and then, once you know who you're talking to, we'll use OAuth to grant you a token that's independent of your proof of identity, that says what type of access you should have, and how long you should have it."

Microsoft Teams: A channel for sensitive business information sharing that needs better backup
2022-10-10 03:30

Hornetsecurity has found an urgent need for greater backup for Microsoft Teams with 45% of users sending confidential and critical information frequently via the platform. Users sharing confidential and sensitive information via Teams.

Microsoft Issues Improved Mitigations for Unpatched Exchange Server Vulnerabilities
2022-10-08 05:13

Microsoft on Friday disclosed it has made more improvements to the mitigation method offered as a means to prevent exploitation attempts against the newly disclosed unpatched security flaws in Exchange Server. To that end, the tech giant has revised the blocking rule in IIS Manager from ".

Microsoft: Windows 11 22H2 causes file copy performance hit
2022-10-07 19:17

Microsoft has confirmed a new known issue causing customers to experience a significant performance hit when copying large files over SMB after installing the Windows 11 22H2 update. "There is a performance reduction in 22H2 when copying larger files from a remote computer down to a Windows 11 computer or when copying files on a local drive," explained Ned Pyle, Principal Program Manager in the Windows Server engineering group.

Microsoft is rolling out a fix for Outlook crashing after launch
2022-10-07 17:56

Microsoft is finally rolling out a fix for an issue known since August and causing Outlook for Microsoft 365 to freeze and crash right after it's opened. "When you start Outlook Desktop, it gets past loading profile and processing, briefly opens, and then stops responding," Microsoft explains.