#zero_day

The U.S. government agency in charge of improving the nation's cybersecurity posture is ordering all federal civilian agencies to take new measures to restrict access to Internet-exposed networking equipment. The directive comes amid a surge in attacks targeting previously unknown vulnerabilities in widely used security and networking appliances.

A suspected China-nexus threat actor dubbed UNC4841 has been linked to the exploitation of a recently patched zero-day flaw in Barracuda Email Security Gateway (ESG) appliances since October 2022. "UNC4841 is an espionage actor behind this wide-ranging campaign in support of the People's Republic of China," Google-owned Mandiant said in a new report published today, describing the group as "

The Chinese state-sponsored group known as UNC3886 has been found to exploit a zero-day flaw in VMware ESXi hosts to backdoor Windows and Linux systems. The VMware Tools authentication bypass vulnerability, tracked as CVE-2023-20867 (CVSS score: 3.9), "enabled the execution of privileged commands across Windows, Linux, and PhotonOS (vCenter) guest VMs without authentication of guest credentials

Users urged to apply updates to FortiOS SSL-VPN after attackers may have leveraged a recently discovered vulnerability in attacks against government, manufacturing, and critical infrastructure organizations.

It's time to include messaging tool security in your cloud security program. Good first steps include tightening filter parameters on Slack and Teams.

The June 2023 Patch Tuesday security update included fixes for a bypass for two previously addressed issues in Microsoft Exchange and a critical elevation of privilege flaw in SharePoint Server.

At least half of dozen GitHub accounts from fake researchers associated with a fraudulent cybersecurity company have been observed pushing malicious repositories on the code hosting service. All seven repositories, which are still available as of writing, claim to be a proof-of-concept (PoC) exploit for purported zero-day flaws in Discord, Google Chrome, and Microsoft Exchange. VulnCheck, which

Microsoft has rolled out fixes for its Windows operating system and other software components to remediate major security shortcomings as part of Patch Tuesday updates for June 2023. Of the 73 flaws, six are rated Critical, 63 are rated Important, two are rated Moderated, and one is rated Low in severity. This also includes three issues the tech giant addressed in its Chromium-based Edge browser

Categories: Exploits and vulnerabilities Categories: News Tags: Microsoft Tags: patch Tuesday Tags: CVE-2023-29357 Tags: CVE-2023-29363 Tags: CVE-2023-32014 Tags: CVE-2023-32015 Tags: CVE-2023-32013 Tags: CVE-2023-24897 Tags: CVE-2023-32031 Tags: SharePoint Tags: PGM Tags: Exchange Tags: Hyper-V Patch Tuesday of June 2023 is relatively relaxed. No actively exploited zero-days and only six critical vulnerabilities. (Read more...) The post Microsoft fixes six critical vulnerabilities in June Patch Tuesday appeared first on Malwarebytes Labs.