Check Point Advisories

Tenda Buffer Overflow (CVE-2020-13389; CVE-2020-13390; CVE-2020-13391; CVE-2020-13392; CVE-2020-13393)

Vulnerability
Protection

Check Point Reference:	CPAI-2020-0524
Date Published:	21 Jun 2020
Severity:	High
Last Updated:	Sunday 21 June, 2020
Source:
Industry Reference:	CVE-2020-13389 CVE-2020-13390 CVE-2020-13391 CVE-2020-13392 CVE-2020-13393
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Tenda AC6 V1.0 V15.03.05.19_multi_TD01 Tenda AC9 V1.0 V15.03.05.19(6318)_CN Tenda AC9 V3.0 V15.03.06.42_multi Tenda AC15 V1.0 V15.03.05.19_multi_TD01 Tenda AC18 V15.03.05.19(6318_)_CN
Vulnerability Description	A buffer overflow vulnerability exists in Tenda. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system or cause application crashes.

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 R80 / R77 / R75

In the IPS tab, click Protections and find the Tenda Buffer Overflow (CVE-2020-13389) 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: Tenda Buffer Overflow (CVE-2020-13389)