CVE-2021-27065

Hello everyone! This episode will be about the new hot twenty vulnerabilities from CISA, NSA and FBI, Joint cybersecurity advisory (CSA) AA22-279A, and how I analyzed these vulnerabilities using my open source project Vulristics. Alternative video link (for Russia): https://vk.com/video-149273431_456239105 Americans can’t just release a list of “20 vulnerabilities most commonly exploited in attacks on […]

Categories: Exploits and vulnerabilities Categories: News Tags: Chinese APT Tags: advanced persistent threat Tags: APT Tags: CISA Tags: NSA Tags: FBI Tags: security advisory CISA, the NSA and the FBI have compiled a list of the vulnerabilities targeted by state-sponsorted threat actors from China. (Read more...) The post Chinese APT's favorite vulnerabilities revealed appeared first on Malwarebytes Labs.

By Waqas Going by the name of Witchetty; the hacker group is targeting countries in Africa and the Middle East. This is a post from HackRead.com Read the original post: Chinese Hackers Hiding Malware in Windows Logo

APT group Witchetty (aka LookingFrog) has exploited the ProxyShell and ProxyLogon vulnerabilities to gain initial access and deploy new custom cyber tools against government agencies and a stock exchange.

A slew of Microsoft Exchange vulnerabilities (including ProxyLogon) fueled a surge in attacks targeting software flaws in 2021, but the trend has continued this year.

Hello everyone! This is the second episode of Vulnerability Management news and publications. In fact, this is a collection of my posts from the avleonovcom and avleonovrus telegram channels. Therefore, if you want to read them earlier, subscribe to these channels. Alternative video link (for Russia): https://vk.com/video-149273431_456239097 What’s in this episode: Microsoft released a propaganda […]

While attackers continue to rely on older, unpatched vulnerabilities, many are jumping on new vulnerabilities as soon as they are disclosed.

This guidance will help customers address threats taking advantage of the recently disclosed Microsoft Exchange Server on-premises vulnerabilities CVE-2021-26855, CVE-2021-26858, CVE-2021-26857, and CVE-2021-27065, which are being exploited. We strongly urge customers to immediately update systems. Failing to address these vulnerabilities can result in compromise of your on-premises Exchange Server and, potentially, other parts of your internal network.

Update March 15, 2021: If you have not yet patched, and have not applied the mitigations referenced below, a one-click tool, the Exchange On-premises Mitigation Tool is now our recommended path to mitigate until you can patch. Microsoft previously blogged our strong recommendation that customers upgrade their on-premises Exchange environments to the latest supported version.

On March 2nd, we released several security updates for Microsoft Exchange Server to address vulnerabilities that are being used in ongoing attacks. Due to the critical nature of these vulnerabilities, we recommend that customers protect their organizations by applying the patches immediately to affected systems. The vulnerabilities affect Exchange Server versions 2013, 2016, and 2019, while Exchange Server 2010 is also being updated for defense-in-depth purposes.