SB2021072811 - Multiple vulnerabilities in Trend Micro Apex One
Published: July 28, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Incorrect default permissions (CVE-ID: CVE-2021-32464)
CWE-ID: CWE-276 - Incorrect Default Permissions
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 incorrect default permissions for files and folders that are set by the application. A local user with access to the system can modify certain files and escalate privileges on the system.
2) Improper Preservation of Permissions (CVE-ID: CVE-2021-32465)
CWE-ID: -
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote user to bypass authentication process.
The vulnerability exists due to unspecified error, related to preservation of access permissions. A remote authenticated user can bypass authentication process and gain unauthorized access to the system.
3) Arbitrary file upload (CVE-ID: CVE-2021-36741)
CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
The vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload within the product’s management console . A remote user can upload a malicious file and execute it on the server.
Note, the vulnerability is being actively exploited in the wild.
4) Buffer overflow (CVE-ID: CVE-2021-36742)
CWE-ID: CWE-119 - Memory corruption
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:A/U:Amber
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error. A local user can run a specially crafted program to trigger memory corruption and execute arability code with elevated privileges.
Note, the vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.