Vulnerability in Amazon ECS agent (CVE-2025-9039)
Summary
Vulnerability in Amazon ECS agent (CVE-2025-9039). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Bulletin ID: AWS-2025-018 Scope: AWS Content Type: Important (requires attention) Publication Date: 2025/08/14 09:15 PM PDT Description: Amazon Elastic Container Service (Amazon ECS) is a fully managed container orchestration service that enables customers to deploy, manage, and scale containerized applications. Amazon ECS container agent provides an introspection API that provides information about the overall state of the Amazon ECS agent and the container instances. We identified CVE-2025-9039, an issue in the Amazon ECS agent. Under certain conditions, this issue could allow an introspection server to be accessed off-host by another instance if the instances are in the same security group or if their security groups allow inbound connections to the introspection server port. This issue does not affect instances where the option to allow off-host access to the introspection server is set to "false". Affected versions: ECS Agent versions 0.0.3 through 1.97.0
Source: AWS Security Bulletins NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-9039 has been found in Amazon ECS agent.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Amazon ECS agent CVE-2025-9039" on the vendor's site.
CVE-2025-9039 (Amazon ECS agent)
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (unclassified) exists in Amazon ECS agent.
Check the vendor advisory for the affected versions of Amazon ECS agent.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Amazon ECS agent を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- AWS aws.amazon.com