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CVE-2021-40336: 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 a...

CVE-2021-40336 · published 4 years ago

Summary

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
hitachienergy	modular_switchgear_monitoring_firmware	<= 2.2.0 `cpe:2.3:o:hitachienergy:modular_switchgear_monitoring_firmware::::::::`

Original advisory text

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.

References

https://search.abb.com/library/Download.aspx?DocumentID=8DBD000085&LanguageCode=... Vendor Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker full control (estimated)

Severity

8.8 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-113Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')

CWE-74Injection

Timeline

Published25 Jul 2022

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2021-40336 · NVD

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