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VMware Patches Severe Security Flaws in Workstation and Fusion Products

VMware Patches Severe Security Flaws in Workstation and Fusion Products
May 14, 2024 Bluetooth / Vulnerability
Multiple security flaws have been  disclosed  in VMware Workstation and Fusion products that could be exploited by threat actors to access sensitive information, trigger a denial-of-service (DoS) condition, and execute code under certain circumstances. The four vulnerabilities impact Workstation versions 17.x and Fusion versions 13.x, with fixes available in version 17.5.2 and 13.5.2, respectively, the Broadcom-owned virtualization services provider said. A brief description of each of the flaws is below - CVE-2024-22267  (CVSS score: 9.3) - A use-after-free vulnerability in the Bluetooth device that could be exploited by a malicious actor with local administrative privileges on a virtual machine to execute code as the virtual machine's VMX process running on the host CVE-2024-22268  (CVSS score: 7.1) - A heap buffer-overflow vulnerability in the Shader functionality that could be exploited by a malicious actor with non-administrative access to a virtual machine with 3D gr

China-Linked Hackers Used ROOTROT Webshell in MITRE Network Intrusion

China-Linked Hackers Used ROOTROT Webshell in MITRE Network Intrusion
May 07, 2024 Vulnerability / Network Security
The MITRE Corporation has offered more details into the recently disclosed cyber attack, stating that the first evidence of the intrusion now dates back to December 31, 2023. The attack, which  came to light last month , singled out MITRE's Networked Experimentation, Research, and Virtualization Environment (NERVE) through the exploitation of two Ivanti Connect Secure zero-day vulnerabilities tracked as CVE-2023–46805 and CVE-2024–21887, respectively. "The adversary maneuvered within the research network via VMware infrastructure using a compromised administrator account, then employed a combination of backdoors and web shells to maintain persistence and harvest credentials," MITRE  said . While the organization had previously disclosed that the attackers performed reconnaissance of its networks starting in January 2024, the latest technical deep dive puts the earliest signs of compromise in late December 2023, with the adversary dropping a Perl-based web shell calle

Severe Flaws Disclosed in Brocade SANnav SAN Management Software

Severe Flaws Disclosed in Brocade SANnav SAN Management Software
Apr 26, 2024 Supply Chain Attack / Software Security
Several security vulnerabilities disclosed in Brocade SANnav storage area network (SAN) management application could be exploited to compromise susceptible appliances. The 18 flaws  impact  all versions up to and including 2.3.0, according to independent security researcher Pierre Barre, who discovered and reported them. The issues range from incorrect firewall rules, insecure root access, and Docker misconfigurations to lack of authentication and encryption, thus allowing an attacker to intercept credentials, overwrite arbitrary files, and completely breach the device. Some of the most severe flaws are listed below - CVE-2024-2859  (CVSS score: 8.8) - A vulnerability that could allow an unauthenticated, remote attacker to log in to an affected device using the root account and execute arbitrary commands CVE-2024-29960  (CVSS score: 7.5) - The use of hard-coded SSH keys in the OVA image, which could be exploited by an attacker to decrypt the SSH traffic to the SANnav applianc

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What's the Right EDR for You?

What's the Right EDR for You?
May 10, 2024Endpoint Security / Threat Detection
A guide to finding the right endpoint detection and response (EDR) solution for your business' unique needs. Cybersecurity has become an ongoing battle between hackers and small- and mid-sized businesses. Though perimeter security measures like antivirus and firewalls have traditionally served as the frontlines of defense, the battleground has shifted to endpoints. This is why endpoint detection and response (EDR) solutions now serve as critical weapons in the fight, empowering you and your organization to detect known and unknown threats, respond to them quickly, and extend the cybersecurity fight across all phases of an attack.  With the growing need to defend your devices from today's cyber threats, however, choosing the right EDR solution can be a daunting task. There are so many options and features to choose from, and not all EDR solutions are made with everyday businesses and IT teams in mind. So how do you pick the best solution for your needs? Why EDR Is a Must Because of

MITRE Corporation Breached by Nation-State Hackers Exploiting Ivanti Flaws

MITRE Corporation Breached by Nation-State Hackers Exploiting Ivanti Flaws
Apr 22, 2024 Network Security / Cybersecurity
The MITRE Corporation revealed that it was the target of a nation-state cyber attack that exploited two zero-day flaws in Ivanti Connect Secure appliances starting in January 2024. The intrusion led to the compromise of its Networked Experimentation, Research, and Virtualization Environment (NERVE), an unclassified research and prototyping network. The unknown adversary "performed reconnaissance of our networks, exploited one of our Virtual Private Networks (VPNs) through two Ivanti Connect Secure zero-day vulnerabilities, and skirted past our multi-factor authentication using session hijacking," Lex Crumpton, a defensive cyber operations researcher at the non-profit,  said  last week. The attack entailed the  exploitation  of CVE-2023-46805 (CVSS score: 8.2) and CVE-2024-21887 (CVSS score: 9.1), which could be weaponized by threat actors to bypass authentication and run arbitrary commands on the infected system. Upon gaining initial access, the threat actors moved late

VMware Issues Security Patches for ESXi, Workstation, and Fusion Flaws

VMware Issues Security Patches for ESXi, Workstation, and Fusion Flaws
Mar 06, 2024 Software Security / Vulnerability
VMware has released patches to address four security flaws impacting ESXi, Workstation, and Fusion, including two critical flaws that could lead to code execution. Tracked as  CVE-2024-22252 and CVE-2024-22253 , the vulnerabilities have been described as use-after-free bugs in the XHCI USB controller. They carry a CVSS score of 9.3 for Workstation and Fusion, and 8.4 for ESXi systems. "A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host," the company  said  in a new advisory. "On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed." Multiple security researchers associated with the Ant Group Light-Year Security Lab and QiAnXin have been credited with independently discovering and reporting CVE-2024-22252. Secur

New BIFROSE Linux Malware Variant Using Deceptive VMware Domain for Evasion

New BIFROSE Linux Malware Variant Using Deceptive VMware Domain for Evasion
Mar 01, 2024 Linux / Cyber Threat
Cybersecurity researchers have discovered a new Linux variant of a remote access trojan (RAT) called BIFROSE (aka Bifrost) that uses a deceptive domain mimicking VMware. "This latest version of Bifrost aims to bypass security measures and compromise targeted systems," Palo Alto Networks Unit 42 researchers Anmol Maurya and Siddharth Sharma  said . BIFROSE  is one of the long-standing threats that has been active since 2004. It has been offered for sale in underground forums for up to $10,000 in the past, according to a  report  from Trend Micro in December 2015. The malware has been put to use by a state-backed hacking group from China tracked as  BlackTech  (aka Circuit Panda, HUAPI, Manga Taurus, Palmerworm, PLEAD, Red Djinn, and Temp.Overboard), which has a history of striking organizations in Japan, Taiwan, and the U.S. It's suspected that the threat actor purchased the source code or gained access to it around 2010, and repurposed the malware for use in its own

VMware Alert: Uninstall EAP Now - Critical Flaw Puts Active Directory at Risk

VMware Alert: Uninstall EAP Now - Critical Flaw Puts Active Directory at Risk
Feb 21, 2024 Active Directory / Vulnerability
VMware is urging users to uninstall the deprecated Enhanced Authentication Plugin (EAP) following the discovery of a critical security flaw. Tracked as  CVE-2024-22245  (CVSS score: 9.6), the vulnerability has been described as an arbitrary authentication relay bug. "A malicious actor could trick a target domain user with EAP installed in their web browser into requesting and relaying service tickets for arbitrary Active Directory Service Principal Names (SPNs)," the company  said  in an advisory. EAP,  deprecated as of March 2021 , is a software package that's designed to allow direct login to vSphere's management interfaces and tools through a web browser. It's not included by default and is not part of vCenter Server, ESXi, or Cloud Foundation. Also discovered in the same tool is a session hijack flaw (CVE-2024-22250, CVSS score: 7.8) that could permit a malicious actor with unprivileged local access to a Windows operating system to seize a privileged EAP

Chinese Hackers Silently Weaponized VMware Zero-Day Flaw for 2 Years

Chinese Hackers Silently Weaponized VMware Zero-Day Flaw for 2 Years
Jan 20, 2024 Zero Day / Cyber Espionage
An advanced China-nexus cyber espionage group previously linked to the exploitation of security flaws in VMware and Fortinet appliances has been attributed to the abuse of a critical vulnerability in VMware vCenter Server as a zero-day since late 2021. "UNC3886 has a track record of utilizing zero-day vulnerabilities to complete their mission without being detected, and this latest example further demonstrates their capabilities," Google-owned Mandiant said in a Friday report. The vulnerability in question is CVE-2023-34048 (CVSS score: 9.8), an out-of-bounds write that could be put to use by a malicious actor with network access to vCenter Server to achieve remote code execution. It was fixed by the Broadcom-owned company on October 24, 2023. The virtualization services provider, earlier this week, updated its advisory to acknowledge that "exploitation of CVE-2023-34048 has occurred in the wild." UNC3886 first came to light in September 2022 when it was

Citrix, VMware, and Atlassian Hit with Critical Flaws — Patch ASAP!

Citrix, VMware, and Atlassian Hit with Critical Flaws — Patch ASAP!
Jan 17, 2024 Vulnerability / Cyber Threat
Citrix is warning of two zero-day security vulnerabilities in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) that are being actively exploited in the wild. The flaws are listed below - CVE-2023-6548 (CVSS score: 5.5) - Authenticated (low privileged) remote code execution on Management Interface (requires access to NSIP, CLIP, or SNIP with management interface access) CVE-2023-6549 (CVSS score: 8.2) - Denial-of-service (requires that the appliance be configured as a Gateway or authorization and accounting, or AAA, virtual server) The following customer-managed versions of NetScaler ADC and NetScaler Gateway are impacted by the shortcomings - NetScaler ADC and NetScaler Gateway 14.1 before 14.1-12.35 NetScaler ADC and NetScaler Gateway 13.1 before 13.1-51.15 NetScaler ADC and NetScaler Gateway 13.0 before 13.0-92.21 NetScaler ADC and NetScaler Gateway version 12.1 (currently end-of-life) NetScaler ADC 13.1-FIPS before 13.1-37.176 NetS

8Base Group Deploying New Phobos Ransomware Variant via SmokeLoader

8Base Group Deploying New Phobos Ransomware Variant via SmokeLoader
Nov 18, 2023 Ransomware / Endpoint Security
The threat actors behind the  8Base ransomware  are leveraging a variant of the Phobos ransomware to conduct their financially motivated attacks. The findings come from Cisco Talos, which has recorded an increase in activity carried out by the cybercriminals. "Most of the group's Phobos variants are distributed by SmokeLoader, a backdoor trojan," security researcher Guilherme Venere said in an exhaustive  two-part   analysis  published Friday. "This commodity loader typically drops or downloads additional payloads when deployed. In 8Base campaigns, however, it has the ransomware component embedded in its encrypted payloads, which is then decrypted and loaded into the SmokeLoader process' memory." 8Base came into sharp focus in mid-2023, when a similar spike in activity was observed by the cybersecurity community. It's said to be active at least since March 2022. A  previous analysis  from VMware Carbon Black in June 2023 identified parallels between 8Base and Ranso

Urgent: VMware Warns of Unpatched Critical Cloud Director Vulnerability

Urgent: VMware Warns of Unpatched Critical Cloud Director Vulnerability
Nov 15, 2023 Network Securit / Vulnerability
VMware is warning of a critical and unpatched security flaw in Cloud Director that could be exploited by a malicious actor to get around authentication protections. Tracked as  CVE-2023-34060  (CVSS score: 9.8), the vulnerability impacts instances that have been upgraded to version 10.5 from an older version. "On an upgraded version of VMware Cloud Director Appliance 10.5, a malicious actor with network access to the appliance can bypass login restrictions when authenticating on port 22 (ssh) or port 5480 (appliance management console)," the company  said  in an alert. "This bypass is not present on port 443 (VCD provider and tenant login). On a new installation of VMware Cloud Director Appliance 10.5, the bypass is not present." The virtualization services company further noted that the impact is due to the fact that it utilizes a version of sssd from the underlying Photon OS that is affected by  CVE-2023-34060 . Dustin Hartle from IT solutions provider Idea

Researchers Find 34 Windows Drivers Vulnerable to Full Device Takeover

Researchers Find 34 Windows Drivers Vulnerable to Full Device Takeover
Nov 02, 2023 Endpoint Security / Malware
As many as 34 unique vulnerable Windows Driver Model ( WDM ) and Windows Driver Frameworks ( WDF ) drivers could be exploited by non-privileged threat actors to gain full control of the devices and execute arbitrary code on the underlying systems. "By exploiting the drivers, an attacker without privilege may erase/alter firmware, and/or elevate [operating system] privileges," Takahiro Haruyama, a senior threat researcher at VMware Carbon Black,  said . The  research  expands on previous studies, such as  ScrewedDrivers  and  POPKORN  that utilized  symbolic execution  for automating the discovery of vulnerable drivers. It specifically focuses on drivers that contain firmware access through port I/O and memory-mapped I/O. The names of some of the vulnerable drivers include AODDriver.sys, ComputerZ.sys, dellbios.sys, GEDevDrv.sys, GtcKmdfBs.sys, IoAccess.sys, kerneld.amd64, ngiodriver.sys, nvoclock.sys, PDFWKRNL.sys ( CVE-2023-20598 ), RadHwMgr.sys, rtif.sys, rtport.sys, s

Act Now: VMware Releases Patch for Critical vCenter Server RCE Vulnerability

Act Now: VMware Releases Patch for Critical vCenter Server RCE Vulnerability
Oct 25, 2023 Vulnerability / Cyber Threat
VMware has released security updates to address a critical flaw in the vCenter Server that could result in remote code execution on affected systems. The issue, tracked as  CVE-2023-34048  (CVSS score: 9.8), has been described as an out-of-bounds write vulnerability in the implementation of the  DCE/RPC protocol . "A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution," VMware  said  in an advisory published today. Credited with discovering and reporting the flaw is Grigory Dorodnov of Trend Micro Zero Day Initiative. VMware said that there are no workarounds to mitigate the shortcoming and that security updates have been made available in the following versions of the software - VMware vCenter Server 8.0 (8.0U1d or 8.0U2) VMware vCenter Server 7.0 (7.0U3o) VMware Cloud Foundation 5.x and 4.x Given the criticality of the flaw and the lack of temporary mitigations, the virtualization

Alert: PoC Exploits Released for Citrix and VMware Vulnerabilities

Alert: PoC Exploits Released for Citrix and VMware Vulnerabilities
Oct 25, 2023 Exploit / Vulnerability
Virtualization services provider VMware has alerted customers to the existence of a proof-of-concept (PoC) exploit for a recently patched security flaw in Aria Operations for Logs. Tracked as CVE-2023-34051 (CVSS score: 8.1), the high-severity vulnerability relates to a case of authentication bypass that could lead to remote code execution. "An unauthenticated, malicious actor can inject files into the operating system of an impacted appliance which can result in remote code execution," VMware  noted  in an advisory on October 19, 2023. James Horseman from Horizon3.ai and the Randori Attack Team have been credited with discovering and reporting the flaw. Horizon3.ai has since made available a  PoC for the vulnerability , prompting VMware to revise its advisory this week. It's worth noting that CVE-2023-34051 is a patch bypass for a  set of critical flaws  that were addressed by VMware earlier this January that could expose users to remote code execution attacks. &

PoC Exploit Released for Critical VMware Aria's SSH Auth Bypass Vulnerability

PoC Exploit Released for Critical VMware Aria's SSH Auth Bypass Vulnerability
Sep 03, 2023 Network Security / Vulnerability
Proof-of-concept (PoC) exploit code has been made available for a recently disclosed and patched critical flaw impacting VMware Aria Operations for Networks (formerly vRealize Network Insight). The flaw, tracked as  CVE-2023-34039 , is rated 9.8 out of a maximum of 10 for severity and has been described as a case of authentication bypass due to a lack of unique cryptographic key generation. "A malicious actor with network access to Aria Operations for Networks could bypass SSH authentication to gain access to the Aria Operations for Networks CLI," VMware said earlier this week. Summoning Team's Sina Kheirkhah, who published the PoC following an analysis of the patch released by VMware, said the root cause can be traced back to a bash script containing a method named refresh_ssh_keys(), which is responsible for overwriting the current SSH keys for the support and ubuntu users in the authorized_keys file. "There is SSH authentication in place; however, VMware forgot to regenerate th

Critical Vulnerability Alert: VMware Aria Operations Networks at Risk from Remote Attacks

Critical Vulnerability Alert: VMware Aria Operations Networks at Risk from Remote Attacks
Aug 30, 2023 Vulnerability / Network Security
VMware has released software updates to correct two security vulnerabilities in Aria Operations for Networks that could be potentially exploited to bypass authentication and gain remote code execution. The most severe of the flaws is CVE-2023-34039 (CVSS score: 9.8), which relates to a case of authentication bypass arising as a result of a lack of unique cryptographic key generation. "A malicious actor with network access to Aria Operations for Networks could bypass SSH authentication to gain access to the Aria Operations for Networks CLI," the company  said  in an advisory. ProjectDiscovery researchers Harsh Jaiswal and Rahul Maini have been credited with discovering and reporting the issue. The second weakness, CVE-2023-20890 (CVSS score: 7.2), is an arbitrary file write vulnerability impacting Aria Operations for Networks that could be abused by an adversary with administrative access to write files to arbitrary locations and achieve remote code execution. Credited

8Base Ransomware Spikes in Activity, Threatens U.S. and Brazilian Businesses

8Base Ransomware Spikes in Activity, Threatens U.S. and Brazilian Businesses
Jun 28, 2023 Ransomware / Cyber Threat
A ransomware threat called 8Base that has been operating under the radar for over a year has been attributed to a "massive spike in activity" in May and June 2023. "The group utilizes encryption paired with 'name-and-shame' techniques to compel their victims to pay their ransoms," VMware Carbon Black researchers Deborah Snyder and Fae Carlisle  said  in a report shared with The Hacker News. "8Base has an opportunistic pattern of compromise with recent victims spanning across varied industries." 8Base, according to statistics gathered by  Malwarebytes  and  NCC Group , has been linked to 67 attacks as of May 2023, with about 50% of the victims  operating  in the business services, manufacturing, and construction sectors. A majority of the targeted companies are located in the U.S. and Brazil. With very little known about the operators of the ransomware, its origins remain something of a cipher. What's evident is that it has been active sinc

Alert! Hackers Exploiting Critical Vulnerability in VMware's Aria Operations Networks

Alert! Hackers Exploiting Critical Vulnerability in VMware's Aria Operations Networks
Jun 21, 2023 Vulnerability / Network Security
VMware has flagged that a recently patched critical command injection vulnerability in Aria Operations for Networks (formerly vRealize Network Insight) has come under active exploitation in the wild. The flaw, tracked as  CVE-2023-20887 , could  allow  a malicious actor with network access to the product to perform a command injection attack, resulting in remote code execution. It impacts VMware Aria Operations Networks versions 6.x, with fixes released in versions 6.2, 6.3, 6.4, 6.5.1, 6.6, 6.7, 6.8, 6.9, and 6.10 on June 7, 2023. Now according to an update shared by the virtualization services provider on June 20, 2023, the flaw has been weaponized in real-world attacks, although the exact specifics are unknown as yet. "VMware has confirmed that exploitation of CVE-2023-20887 has occurred in the wild," the company  noted . Data gathered by threat intelligence firm GreyNoise  shows  active exploitation of the flaw from two different IP addresses located in the Netherl

Chinese Hackers Exploit VMware Zero-Day to Backdoor Windows and Linux Systems

Chinese Hackers Exploit VMware Zero-Day to Backdoor Windows and Linux Systems
Jun 14, 2023 Zero-Day / Network Security
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 from a compromised ESXi host and no default logging on guest VMs," Mandiant  said . UNC3886 was  initially documented  by the Google-owned threat intelligence firm in September 2022 as a cyber espionage actor infecting VMware ESXi and vCenter servers with backdoors named VIRTUALPITA and VIRTUALPIE. Earlier this March, the group was  linked  to the exploitation of a now-patched medium-severity security flaw in the Fortinet FortiOS operating system to deploy implants on the network appliances and interact with the aforementioned malware. The threat actor has been described as a

Urgent Security Updates: Cisco and VMware Address Critical Vulnerabilities

Urgent Security Updates: Cisco and VMware Address Critical Vulnerabilities
Jun 08, 2023 Network Security / Vulnerability
VMware has  released  security updates to fix a trio of flaws in Aria Operations for Networks that could result in information disclosure and remote code execution. The most critical of the three vulnerabilities is a command injection vulnerability tracked as  CVE-2023-20887  (CVSS score: 9.8) that could allow a malicious actor with network access to achieve remote code execution. Also patched by VMware is another  deserialization vulnerability  ( CVE-2023-20888 ) that's rated 9.1 out of a maximum of 10 on the CVSS scoring system. "A malicious actor with network access to VMware Aria Operations for Networks and valid 'member' role credentials may be able to perform a deserialization attack resulting in remote code execution," the company said in an advisory. The third security defect is a high-severity information disclosure bug ( CVE-2023-20889 , CVSS score: 8.8) that could permit an actor with network access to perform a command injection attack and obtain
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