VDI vulnerabilities

Limited remote code execution with privilege of a NetworkService Account access in Citrix Session Recording if the attacker is an authenticated user on the same intranet as the session recording server

Privilege escalation to NetworkService Account access in Citrix Session Recording when an attacker is an authenticated user in the same Windows Active Directory domain as the session recording server domain

Remote Desktop Client Remote Code Execution Vulnerability

Remote Desktop Client Remote Code Execution Vulnerability

The vCenter Server contains a privilege escalation vulnerability. A malicious actor with network access to vCenter Server may trigger this vulnerability to escalate privileges to root by sending a specially crafted network packet.

The vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution.

Local privilege escalation allows a low-privileged user to gain SYSTEM privileges in Citrix Workspace app for Windows

A flaw was found in the gnome-remote-desktop package. The gnome-remote-desktop system daemon performs inadequate validation of session agents using D-Bus methods related to transitioning a client connection from the login screen to the user session. As a result, the system RDP TLS certificate and key can be exposed to unauthorized users. This flaw allows a malicious user on the system to take control of the RDP client connection during the login screen-to-user session transition.

Summary: Microsoft was notified that an elevation of privilege vulnerability exists in Windows based systems supporting Virtualization Based Security (VBS), including a subset of Azure Virtual Machine SKUS. This vulnerability enables an attacker with administrator privileges to replace current versions of Windows system files with outdated versions. By exploiting this vulnerability, an attacker could reintroduce previously mitigated vulnerabilities, circumvent some features of VBS, and exfiltrate data protected by VBS. Microsoft is developing a security update to mitigate this threat, but it is not yet available. Guidance to help customers reduce the risks associated with this vulnerability and to protect their systems until the mitigation is available in a Windows security update is provided in the Recommended Actions section of this CVE. This CVE will be updated when the mitigation is available in a Windows security update. We highly encourage customers to subscribe to Security Update Guide notifications to receive an alert when this update occurs. Update: August 13, 2024 Microsoft has released the August 2024 security updates that include an opt-in revocation policy mitigation to address this vulnerability. Customers running affected versions of Windows are encouraged to review KB5042562: Guidance for blocking rollback of virtualization-based security related updates to assess if this opt-in policy meets the needs of their environment before implementing this mitigation. There are risks associated with this mitigation that should be understood prior to applying it to your systems. Detailed information about these risks is also available in KB5042562. Details: A security researcher informed Microsoft of an elevation of privilege vulnerability in Windows 10, Windows 11, Windows Server 2016, and higher based systems including Azure Virtual Machines (VM) that support VBS. For more information on Windows versions and VM SKUs supporting VBS, reference: Virtualization-based Security (VBS) | Microsoft Learn. The vulnerability enables an attacker with administrator privileges on the target system to replace current Windows system files with outdated versions. Successful exploitation provides an attacker with the ability to reintroduce previously mitigated vulnerabilities, circumvent VBS security features, and exfiltrate data protected by VBS. Microsoft is developing a security... See more at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21302

Local Privilege escalation allows a low-privileged user to gain SYSTEM privileges in Citrix Workspace app for Windows

Denial of Service in NetScaler Console (formerly NetScaler ADM), NetScaler Agent, and NetScaler SDX

Local Privilege escalation allows a low-privileged user to gain SYSTEM privileges in Virtual Delivery Agent for Windows used by Citrix Virtual Apps and Desktops and Citrix DaaS

A non-admin user can cause short-term disruption in Target VM availability in Citrix Provisioning

Redirection of users to a vulnerable URL in Citrix Workspace app for HTML5

Bypass of GACS Policy Configuration settings in Citrix Workspace app for HTML5

Sensitive information disclosure in NetScaler Console

Denial of Service in NetScaler ADC and NetScaler Gateway in NetScaler

Windows Hyper-V Elevation of Privilege Vulnerability

Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability

Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability

Windows Remote Desktop Licensing Service Remote Code Execution Vulnerability

The vCenter Server contains multiple local privilege escalation vulnerabilities due to misconfiguration of sudo. An authenticated local user with non-administrative privileges may exploit these issues to elevate privileges to root on vCenter Server Appliance.

vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution.

vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution.

Insufficient verification of data authenticity in the installer for Zoom Workplace VDI App for Windows may allow an authenticated user to conduct an escalation of privilege via local access.

VMware Workstation and Fusion contain a use-after-free vulnerability in the vbluetooth device. 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.

VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the UHCI USB controller. 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. 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.

VMware ESXi, Workstation, and Fusion contain a use-after-free vulnerability in the XHCI USB controller. 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. 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.

ConnectWise ScreenConnect 23.9.7 and prior are affected by an Authentication Bypass Using an Alternate Path or Channel vulnerability, which may allow an attacker direct access to confidential information or critical systems.

ConnectWise ScreenConnect 23.9.7 and prior are affected by path-traversal vulnerability, which may allow an attacker the ability to execute remote code or directly impact confidential data or critical systems.

Untrusted search path in some Zoom 32 bit Windows clients may allow an authenticated user to conduct an escalation of privilege via local access.

Improper input validation in Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom Meeting SDK for Windows may allow an unauthenticated user to conduct an escalation of privilege via network access.

  Cross-site scripting (XSS)

Improper access control in Zoom Desktop Client for Windows, Zoom VDI Client for Windows, and Zoom SDKs for Windows before version 5.16.10 may allow an authenticated user to conduct an escalation of privilege via local access.

Remote Desktop Client Remote Code Execution Vulnerability

Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA  virtual server.

Improper neutralization of special elements in Zoom Desktop Client for Windows and Zoom VDI Client before 5.15.2 may allow an unauthenticated user to enable an escalation of privilege via network access.

Reflected Cross-Site Scripting (XSS)

Unauthenticated remote code execution

Users with only access to launch VDA applications can launch an unauthorized desktop

A vulnerability has been identified in Citrix Workspace app for Linux that, if exploited, may result in a malicious local user being able to gain access to the Citrix Virtual Apps and Desktops session of another user who is using the same computer from which the ICA session is launched.

Remote Desktop Client Remote Code Execution Vulnerability

Windows Remote Desktop Security Feature Bypass Vulnerability

Vulnerabilities have been identified that, collectively, allow a standard Windows user to perform operations as SYSTEM on the computer running Citrix Workspace app.

A malicious user can cause log files to be written to a directory that they do not have permission to write to.

A vulnerability has been identified that, if exploited, could result in a local user elevating their privilege level to NT AUTHORITY\SYSTEM on a Citrix Virtual Apps and Desktops Windows VDA.

Unauthenticated remote arbitrary code execution

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.6 is susceptible to a local information exposure vulnerability. A failure to clear data from a local SQL database after a meeting ends and the usage of an insufficiently secure per-device key encrypting that database results in a local malicious user being able to obtain meeting information such as in-meeting chat for the previous meeting attended from that local user account.

Remote desktop takeover via phishing

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 6.1.38. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).