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Trend Micro Patches Vulnerabilities in Home Network Security Devices

Vulnerabilities identified by security researchers with Cisco’s Talos unit in Trend Micro Home Network Security devices could be exploited to elevate privileges or achieve arbitrary authentication.

Vulnerabilities identified by security researchers with Cisco’s Talos unit in Trend Micro Home Network Security devices could be exploited to elevate privileges or achieve arbitrary authentication.

The Home Network Security station provides users with monitoring and protection capabilities, including vulnerability scanning, intrusion prevention, threat protection, and device-based access control.

A total of three security holes were identified in these devices, namely two stack buffer overflows with CVSS scores of 7.8 (CVE-2021-32457 and CVE-2021-32458) and one hardcoded password issue, with a CVSS score of 4.9 (CVE-2021-32459).

The first two bugs are related to ioctl stack-based buffer overflows that an attacker could exploit through specially crafted ioctl requests. Both issues lead to privilege escalation but require for the attacker to first be able to execute low-privileged code on the device.

Talos researchers also discovered a hardcoded password vulnerability impacting the log collection server function of Trend Micro Home Network Security, which could be abused for arbitrary authentication by sending a specially crafted network request.

A mitigating factor is the fact that an attacker needs to gain the ability to execute high-privileged code on the vulnerable device before being able to exploit the issue.

Trend Micro says it has “received no reports nor is aware of any actual attacks against the affected product related to this vulnerability at this time.”

Impacted Trend Micro Home Network Security releases include version 6.6.604 and earlier. Trend Micro has already released firmware updates to address the bugs and supported devices should receive them through the automatic firmware update mechanism.

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Related: NTLM Relay Attack Abuses Windows RPC Protocol Vulnerability

Related: Several Cisco Products Exposed to DoS Attacks Due to Snort Vulnerability

Related: Recently Patched Android Vulnerability Exploited in Attacks

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

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