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Tenable Research: April Vulnerability Disclosure Roundup

Tenable Research has a dedicated team that performs vulnerability research on software and hardware from third-party vendors. The goal is to discover zero-day vulnerabilities and work with vendors to get them addressed before hackers discover and exploit them. This post provides an overview of all the vulnerabilities discovered by Tenable Research in April.

You can access all Tenable Research advisories here.

Schneider Electric InduSoft Web Studio and InTouch Machine Edition Critical Remote Code Execution Vulnerability

CVE ID: CVE-2018-8840

Nessus Plugin ID: 109280

Tenable Research Advisory: TRA-2018-07

Risk Factor: Critical

What do you need to know?

Tenable Research recently discovered a new remote code execution vulnerability in Schneider Electric’s InduSoft Web Studio and InTouch Machine Edition. The applications contain an overflow condition that is triggered when input is not properly validated. This allows an attacker to force a stack-based buffer overflow, resulting in denial of service or potentially allowing the execution of arbitrary code. Read our full analysis here. Read TechRepublic’s coverage.

What’s the attack vector?

The vulnerability can be remotely exploited without authentication to execute arbitrary commands on the target system.

What’s the business impact?

A malicious threat actor can completely compromise and gain control of the system and use it as a pivot point to move laterally through a network.

What’s the solution?

Schneider Electric has released InduSoft Web Studio v8.1 SP1 and InTouch Machine Edition 2017 v8.1 SP1 to address this vulnerability. Affected users should apply the patches ASAP.

Belkin N750 F9K1103 v1 Multiple Vulnerabilities

CVE IDs: CVE-2018-1143, CVE-2018-1144, CVE-2018-1145, CVE-2018-1146

Nessus Plugin ID: 109059

Tenable Research Advisory: TRA-2018-08

Risk Factor: Critical

What do you need to know?

Tenable Research has discovered four vulnerabilities in Belkin’s N750 F9K1103 v1 wireless router.

What’s the attack vector?

All four vulnerabilities can be exploited remotely without authentication.

What’s the business impact?

The most serious vulnerability permits an unauthenticated remote attacker to enable the unauthenticated telnet service, resulting in full compromise with administrator privileges of the router.

What’s the solution?

There is currently no known solution. The vendor has not released a fixed firmware.

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