SB2023111430 - Multiple vulnerabilities in Microsoft Windows Hyper-V
Published: November 14, 2023 Updated: May 13, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2023-36406)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in Windows Hyper-V. A local user can gain unauthorized access to sensitive information on the system.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-36427)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Hyper-V, which leads to security restrictions bypass and privilege escalation.
3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-36407)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Hyper-V, which leads to security restrictions bypass and privilege escalation.
4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-36408)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in Windows Hyper-V, which leads to security restrictions bypass and privilege escalation.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36406
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36427
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36407
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36408