CVE-2025-9039— Information Disclosure in Amazon ECS Container Agent
Quick assessment
Affected
Amazon ECS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Amazon ECS Container Agent是Amazon Web Services开源的一个弹性容器服务代理软件。 Amazon ECS Container Agent存在安全漏洞，该漏洞源于在某些条件下，内省服务器可以被同一安全组中的其他实例访问。
Possible ATT&CK Techniques 1 AI
T1046 · Network Service Discovery
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I. Basic Information for CVE-2025-9039
Vulnerability Information
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Vulnerability Title
Information Disclosure in Amazon ECS Container Agent
Source: CVE Program / CVE List V5
Vulnerability Description
We identified an issue in the Amazon ECS agent where, under certain conditions, an introspection server could be accessed off-host by another instance if the instances are in the same security group or if their security groups allow incoming connections that include the port where the server is hosted. This issue does not affect instances where the option to allow off-host access to the introspection server is set to 'false'.
This issue has been addressed in ECS agent version 1.97.1. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.
If customers cannot update to the latest AMI, they can modify the Amazon EC2 security groups to restrict incoming access to the introspection server port (51678).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不安全的继承权限
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon ECS Container Agent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Amazon ECS Container Agent是Amazon Web Services开源的一个弹性容器服务代理软件。 Amazon ECS Container Agent存在安全漏洞，该漏洞源于在某些条件下，内省服务器可以被同一安全组中的其他实例访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-9039
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V. Comments for CVE-2025-9039
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