SB2021071340 - Multiple vulnerabilities in Microsoft Windows Remote Access Connection Manager
Published: July 13, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2021-34457)
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 the Windows Remote Access Connection Manager. A local user can gain unauthorized access to sensitive information on the system.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-33761)
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 the Windows Remote Access Connection Manager, which leads to security restrictions bypass and privilege escalation.
3) Information disclosure (CVE-ID: CVE-2021-33763)
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 the Windows Remote Access Connection Manager. A local user can gain unauthorized access to sensitive information on the system.
4) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-33773)
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 the Windows Remote Access Connection Manager, which leads to security restrictions bypass and privilege escalation.
5) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-34445)
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 the Windows Remote Access Connection Manager, which leads to security restrictions bypass and privilege escalation.
6) Information disclosure (CVE-ID: CVE-2021-34454)
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 the Windows Remote Access Connection Manager. A local user can gain unauthorized access to sensitive information on the system.
7) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-34456)
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 the Windows Remote Access Connection Manager, 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-2021-34457
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33761
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33763
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33773
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34445
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34454
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34456