#samba

Microsoft Windows SMBv3 suffers from a null pointer dereference in versions of Windows prior to the April, 2022 patch set. By sending a malformed FileNormalizedNameInformation SMBv3 request over a named pipe, an attacker can cause a Blue Screen of Death (BSOD) crash of the Windows kernel. For most systems, this attack requires authentication, except in the special case of Windows Domain Controllers, where unauthenticated users can always open named pipes as long as they can establish an SMB session. Typically, after the BSOD, the victim SMBv3 server will reboot.

A vulnerability was found in Microsoft O365 and classified as critical. This issue affects the Conditional Access Policy which leads to improper access controls. By default the policy is not verified for every request. The attack may be initiated remotely. Exploit details have been disclosed to the public. It is recommended to change the configuration settings. NOTE: Vendor claims that pre-requisites are very high, the feature works as intended, and that configuration settings might mitigate the issue.

**Why is this Rapid7 CVE included in the Security Update Guide?** The vulnerability assigned to this CVE was originally classified as a stability bug in Windows. Rapid7 discovered that this bug could be used to cause a denial of service condition on affected versions of Windows. Microsoft had provided an update to address this issue prior to being contacted about it by Rapid 7. Microsoft appreciates the strong partnership that we have with Rapid7. **Why are the May updates associated with the operating systems rows in the Security Updates table?** This vulnerability was addressed in the May 2022 security updates.

Here are four big threats to cloud storage security that SMBs should be ready to address to help prevent cloud data breaches. The post Cloud data breaches: 4 biggest threats to cloud storage security appeared first on Malwarebytes Labs.

It only takes one successful attack to spell disaster for a company. Learn how to protect your company with this email security best practice guide.

In this post, we’ll give you an overview of five Linux malware families your SMB should be protecting itself against — and how they work. The post 5 Linux malware families SMBs should protect themselves against appeared first on Malwarebytes Labs.

Enforcing the "double-extortion" technique aka pay-now-or-get-breached emerged as a head-turner last year.  May 6th, 2022 is a recent example. The State Department said the Conti strain of ransomware was the most costly in terms of payments made by victims as of January. Conti, a ransomware-as-a-service (RaaS) program, is one of the most notorious ransomware groups and has been responsible for

The buzz on the show floor during RSA Conference is about aligning the organization's security priorities with the right technology. Will Lin, managing director and founding member at Forgepoint Capital, weighs in on the biggest security priorities for 2022 — and what kind of tech senior-level executives are looking for.

In Real Player through 20.1.0.312, attackers can execute arbitrary code by placing a UNC share pathname (for a DLL file) in a RAM file.

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between May 27 and June 3. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,... [[ This is only the beginning! Please visit the blog for the complete entry ]]