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September 18, 2023
Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]September 18, 2023Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]September 18, 2023Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
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Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
September 18, 2023Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]September 18, 2023Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]September 18, 2023Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
Connect with Us
Rewterz Threat Alert – Latest AZORult IOCs
October 20, 2020Rewterz Threat Advisory – Microsoft Windows Codecs Library and Visual Studio JSON RCE Vulnerabilities
October 20, 2020
Severity
High
Analysis Summary
Multiple vulnerabilities in VMware ESXi, Workstation, Fusion and NSX-T were privately reported to VMware. Updates are available to remediate these vulnerabilities in affected VMware products.
ESXi OpenSLP remote code execution vulnerability (CVE-2020-3992)
OpenSLP as used in ESXi has a critical use-after-free issue. A malicious actor residing in the management network who has access to port 427 on an ESXi machine may be able to trigger a use-after-free in the OpenSLP service resulting in remote code execution.
NSX-T MITM vulnerability (CVE-2020-3993)
VMware NSX-T contains a security vulnerability that exists in the way it allows a KVM host to download and install packages from NSX manager. Severity of this vulnerability is medium. A malicious actor with MITM positioning may be able to exploit this issue to compromise the transport node.
TOCTOU out-of-bounds read vulnerability (CVE-2020-3981)
VMware ESXi, Workstation and Fusion contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process.
TOCTOU out-of-bounds write vulnerability (CVE-2020-3982)
VMware ESXi, Workstation and Fusion contain an out-of-bounds write vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this vulnerability to crash the virtual machine’s vmx process or corrupt hypervisor’s memory heap.
vCenter Server session hijack vulnerability in update function (CVE-2020-3994)
VMware vCenter Server contains a session hijack vulnerability in the vCenter Server Appliance Management Interface update function due to a lack of certificate validation. A malicious actor with network positioning between vCenter Server and an update repository may be able to perform a session hijack when the vCenter Server Appliance Management Interface is used to download vCenter updates.
VMCI host driver memory leak vulnerability (CVE-2020-3995)
The VMCI host drivers used by VMware hypervisors contain a memory leak vulnerability. A malicious actor with access to a virtual machine may be able to trigger a memory leak issue resulting in memory resource exhaustion on the hypervisor if the attack is sustained for extended periods of time.
Impact
- Remote Code Execution
- Privilege Abuse
- Memory Leakage
- Session Hijacking
Affected Vendors
VMware
Affected Products
- VMware ESXi
- VMware Workstation Pro / Player (Workstation)
- VMware Fusion Pro / Fusion (Fusion)
- NSX-T
- VMware Cloud Foundation
Remediation
Workarounds and fixed versions are listed in the vendor’s advisory.
https://www.vmware.com/security/advisories/VMSA-2020-0023.html