CVE-2021-40335 Cross Site Request Forgery (CSRF) in Hitachi Energy’s MSM Product

Medium 5.0 Published Updated

An attacker can trick authenticated users into performing unauthorized actions on the Hitachi Energy MSM web interface via a forged link.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-40335?

CVE-2021-40335 is a medium-severity vulnerability in Hitachi Energy MSM, published on 25 Jul 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability exists in the HTTP web interface where the web interface does not sufficiently verify if a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This cause a Cross Site Request Forgery (CSRF), which if exploited could lead an attacker to gain unauthorized access to the web application and perform an unwanted operation on it without the knowledge of the legitimate user. An attacker, who successfully makes an MSM user who has already established a session to MSM web interface clicks a forged link to the MSM web interface, e.g., link is sent per E-Mail, could perform harmful command on MSM through its web server interface. This issue affects: Hitachi Energy MSM V2.2 and prior versions.

Weakness: CWE-352

Which versions are affected by CVE-2021-40335?

It affects 1 product.

Products include Hitachienergy Modular Switchgear Monitoring Firmware.

How do I fix CVE-2021-40335?

No fix has been published for CVE-2021-40335 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-40335 being exploited?

There is no known exploitation of CVE-2021-40335 in the wild and no public exploit code.

Sources

Also known as GHSA-5536-vjqw-29vh.

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