CVE-2024-37085

loits were used or suspected, the threat actors targeted vulnerabilities in common VPNs and firewalls such as Fortinet (CVE-2024-55591, CVE-2024-21762, and CVE-2019-6693), SonicWall (CVE-2024-40766), Palo Alto (CVE-2024-3400), and Citrix (CVE-2023-4966). We also observed malicious actors successfully exploit a variety of other exposed services, includi

Akira was seen exploiting SonicWall vulnerabilities and encrypting Nutanix Acropolis Hypervisor (AHV) VM disk files this year.

A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. North Korea-linked APT Citrine Sleet exploit Chrome zero-day to deliver FudModule rootkit Fortra fixed two severe issues in […]

Cisco Talos has a blog post on the BlackByte ransomware group’s continuing evolution and new TTPs.

According to security researchers, the BlackByte ransomware group has been more active in exploiting organizations than previously thought. Security researchers from Cisco Talos have found evidence that the number of victims listed by BlackByte on its data leak site in recent months represents just 20% to 30% of the group’s successful compromises. Moreover, recently investigated […]

BlackByte ransomware operators are exploiting a recently patched VMware ESXi hypervisors vulnerability in recent attacks. Cisco Talos observed the BlackByte ransomware group exploiting the recently patched security flaw CVE-2024-37085 in VMware ESXi hypervisors in recent attacks. The flaw CVE-2024-37085 (CVSS score of 6.8) is an authentication bypass vulnerability in VMware ESXi. At the end of July, […]

BlackByte, the ransomware-as-a-service gang believed to be one of Conti’s splinter groups, has (once again) created a new iteration of its encryptor. “Talos observed some differences in the recent BlackByte attacks. Most notably, encrypted files across all victims were rewritten with the file extension ‘blackbytent_h’, which has not yet appeared in public reporting,” researchers with Cisco’s threat intelligence team have shared. “This newer version of the encryptor also drops four vulnerable drivers as part of … More →

For the latest discoveries in cyber research for the week of 5th August, please download our Threat Intelligence Bulletin. TOP ATTACKS AND BREACHES American blood donation center OneBlood has been a victim of a ransomware attack that caused disruption to its software system, affecting operations across more than 350 hospitals in Florida, Georgia, and the […]

A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. US sued TikTok and ByteDance for violating children’s privacy laws Russia-linked APT used a car for sale as […]

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Why a strong patch management strategy is essential for reducing business risk In this Help Net Security interview, Eran Livne, Senior Director of Product Management, Endpoint Remediation at Qualys and Thomas Scheffler, Security Operations Manager of Cintas Corporation, discuss their experiences with automated patch management. Securing remote access to mission-critical OT assets In this Help Net Security interview, Grant Geyer, … More →

Shadowserver researchers reported that over 20,000 internet-exposed VMware ESXi instances are affected by the actively exploited flaw CVE-2024-37085. Researchers at the Shadowserver Foundation reported that approximately 20,000 VMware ESXi servers exposed online appear impacted by the exploited vulnerability CVE-2024-37085. Microsoft this week warned that multiple ransomware gangs are exploiting the recently patched vulnerability CVE-2024-37085 (CVSS […]

Shadowserver has observed over 20,000 internet-accessible VMware ESXi instances impacted by an exploited vulnerability.

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a VMware ESXi bug to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added an authentication bypass VMware ESXi vulnerability, tracked as CVE-2024-37085 (CVSS score of 6.8), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Microsoft warned that multiple ransomware gangs are […]

Ransomware operators have been leveraging CVE-2024-37085, an authentication bypass vulnerability affecting Active Directory domain-joined VMware ESXi hypervisors, to gain full administrative access to them and encrypt their file system. VMware owner Broadcom has released a fix for CVE-2024-37085 on June 25, 2024 and credited Microsoft’s researchers for flagging it, but did not mention that the vulnerability – at that time, a zero-day – was under active exploitation. Attackers exploiting CVE-2024-37085 “ESXi is a bare-metal hypervisor … More →

Security researchers at Microsoft have discovered a vulnerability in VMware ESXi hypervisors that has been exploited by ransomware operators to gain full administrative access to a domain-joined hypervisor. The problem, identified as CVE-2024-37085, granted full admin privileges to members of a domain group, without proper validation. It has been used by several ransomware groups such […]

Microsoft warns that ransomware gangs are exploiting the recently patched CVE-2024-37085 flaw in VMware ESXi flaw. Microsoft researchers warned that multiple ransomware gangs are exploiting the recently patched vulnerability CVE-2024-37085 (CVSS score of 6.8) in VMware ESXi flaw. “Microsoft researchers have uncovered a vulnerability in ESXi hypervisors being exploited by several ransomware operators to obtain full […]

VMware did not mention in-the-wild exploitation for CVE-2024-37085 but Microsoft says ransomware gangs are abusing the just-patched flaw.