Check Point Advisories

Realtek eCos Stack Buffer Overflow (CVE-2022-27255)

Vulnerability
Protection

Check Point Reference:	CPAI-2022-0536
Date Published:	1 Sep 2022
Severity:	Critical
Last Updated:	Thursday 01 September, 2022
Source:
Industry Reference:	CVE-2022-27255
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Realtek eCos RSDK 1.5.7p1 Realtek eCos MSDK 4.9.4p1
Vulnerability Description	A stack-based buffer overflow exists in Realtek eCos. Successful exploitation could lead to arbitrary code execution.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Realtek eCos Stack Buffer Overflow (CVE-2022-27255) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Server Enforcement Violation.
Attack Information: Realtek eCos Stack Buffer Overflow (CVE-2022-27255)