CVE-2021-40336

HTTP Response Splitting in Hitachi Energy’s MSM Product

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.

Remediation

Workaround:

  • Apply mitigation strategy as described in Mitigation Factors Section in the advisory.

Categories

5.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.16%
Vendor Advisory abb.com
Affected: Hitachi Energy MSM
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-40336?
CVE-2021-40336 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40336?
As a workaround for remediating CVE-2021-40336: Apply mitigation strategy as described in Mitigation Factors Section in the advisory.
Is CVE-2021-40336 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-40336 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-40336?
CVE-2021-40336 affects Hitachi Energy MSM.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.