CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
12.6%
Successful exploitation of this vulnerability could allow unauthorized access to data and modification of data inside the affected product.
Hitachi Energy reports the following versions of Retail Operations and CSB software systems are affected:
A flaw in the application authentication and authorization mechanism that depends on local validation of the session identifier allows an unauthorized, signed Java Applet JAR file to be executed.
CVE-2021-35528 has been assigned to this vulnerability. A CVSS v3 base score of 7.2 has been calculated; the CVSS vector string is (AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N).
Hitachi Energy reported this vulnerability to CISA.
Hitachi Energy recommends the following actions to mitigate this issue:
Hitachi Energy recommends the following security practices and firewall configurations in order to help protect a userβs computer from attack:
Please see the Hitachi Energy Retail Operations and CSB advisories for additional mitigation and update information.
For additional information and support, users should contact the product provider or Hitachi Energy service organization.
CISA also recommends users take the following measures to protect themselves from social engineering attacks:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01BβTargeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability. This vulnerability is not exploitable remotely.
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CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
12.6%