Carrot_C4K3

A local privilege escalation issue exists in the Windows Kernel due to a Time-of-Check to Time-of-Use (TOCTOU) race condition and a Use-After-Free flaw in the Windows Kernel Object Manager. The vulnerability is triggered by improper synchronization and reference counting of kernel object handles, specifically within the `NtQueryInformationToken()` function. An attacker can exploit this by triggering a race condition via repeated token handle operations or using an integer overflow that causes the kernel to allocate an undersized buffer, leading to an out-of-bounds write. This allows a local attacker to corrupt kernel memory, manipulate access tokens, and escalate privileges to NT AUTHORITYSYSTEM, bypassing User Account Control (UAC) and other security boundaries. This flaw has been exploited in the wild by the threat actor OilRig (APT34) in cyber espionage campaigns targeting infrastructure in the UAE and the Gulf region.

The issue is related to a synchronization error in the Windows kernel, specifically a "race condition" that can be exploited to elevate privileges. This can allow an attacker to gain increased access to the system. A proof-of-concept exploit has been released, demonstrating the vulnerability. The vulnerability is due to a double-fetch in `PspBuildCreateProcessContext` that leads to a stack buffer overflow.

The issue is related to errors in synchronization when using a shared resource in the Brokering File System (BFS) of Windows Server, allowing an attacker to potentially elevate their privileges. This could affect the system.

Name of the Vulnerable Software and Affected Versions: Microsoft Windows (affected versions not specified) Description: The issue is related to a lack of authentication for a critical function in the Windows Update Stack component of the Microsoft Windows operating system. This can be exploited to allow an attacker to elevate their privileges. An elevation-of-privilege vulnerability allows attackers to affect the system. Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Name of the Vulnerable Software and Affected Versions: Microsoft Windows (affected versions not specified) Description: The issue is related to the use of insecure mechanisms for handling authentication data in the operating system's memory. It allows an attacker to elevate their privileges. Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

The issue is related to insufficient access control in the Windows kernel, allowing an attacker to elevate their privileges. This can affect the system, potentially leading to unauthorized access or control.

The vulnerability is related to insufficient input validation in the Windows Themes component, allowing remote attackers to execute arbitrary code on the system. This can occur when a user opens a malicious .THEME file. The issue has been exploited in real-world incidents, with proof-of-concept exploit code published. A successful exploit could grant attackers complete control over the victim's system, allowing them to install malware, steal sensitive data, or launch further attacks within the network.