SB2021052509 - Multiple vulnerabilities in Trend Micro Home Network Security
Published: May 25, 2021 Updated: June 28, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Stack-based buffer overflow (CVE-ID: CVE-2021-32458)
CWE-ID: CWE-121 - Stack-based buffer overflow
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 a boundary error in the tdts.ko chrdev_ioctl_handle. A local user can perform a specially crafted IOCTL call to trigger stack-based buffer overflow and execute arbitrary code on the system with elevated privileges.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-32457)
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 improperly imposed permissions in the tdts.ko chrdev_ioctl_handle functionality. A local user can make a specially crafted IOCTL request and gain elevated privileges on the system.
3) Use of Hard-coded Password (CVE-ID: CVE-2021-32459)
CWE-ID: CWE-259 - Use of Hard-coded Password
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber
The vulnerability allows a remote attacker to compromise the affected device.
The vulnerability exists due to presence of hard-coded credentials diamond:bahV6AtJqZt4K in the SFTP Log Collection Server feature and are present in the core binary of the HNS device. A remote non-authenticated attacker can login to the affected system and gain access to the sever.
Remediation
Install update from vendor's website.