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.
Published 2022-07-25 15:15:09
Updated 2023-04-19 15:32:25
View at NVD,   CVE.org
Vulnerability category: Cross-site request forgery (CSRF)Bypass

Exploit prediction scoring system (EPSS) score for CVE-2021-40335

0.11%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-40335

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
1.6
3.4
Hitachi ABB Power Grids
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
NIST

CWE ids for CVE-2021-40335

  • The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.
    Assigned by:
    • cybersecurity@hitachienergy.com (Secondary)
    • nvd@nist.gov (Primary)

Products affected by CVE-2021-40335

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