CVE-2021-40336 HTTP Response Splitting in Hitachi Energy’s MSM Product
Attackers can exploit HTTP response splitting in the MSM web interface to steal session cookies or deliver malicious code to users.
- 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-2021-40336?
CVE-2021-40336 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 validate data in an HTTP header. This causes a possible HTTP response splitting, which if exploited could lead an attacker to channel down harmful code into the user’s web browser, such as to steal the session cookies. Thus, 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., the link is sent per E-Mail, could trick the user into downloading malicious software onto his computer. This issue affects: Hitachi Energy MSM V2.2 and prior versions.
Which versions are affected by CVE-2021-40336?
It affects 1 product.
Products include Hitachienergy Modular Switchgear Monitoring Firmware.
How do I fix CVE-2021-40336?
No fix has been published for CVE-2021-40336 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-40336 being exploited?
There is no known exploitation of CVE-2021-40336 in the wild and no public exploit code.
Other vulnerabilities in Hitachi Energy MSM
Sources
Also known as GHSA-3885-gg9g-8j6j.