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).
Metrics
Affected Vendors & Products
References
History
Sat, 16 Aug 2025 21:45:00 +0000
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| First Time appeared |
Amazon
Amazon ecs |
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| Vendors & Products |
Amazon
Amazon ecs |
Thu, 14 Aug 2025 20:15:00 +0000
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| Metrics |
ssvc
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Thu, 14 Aug 2025 16:30:00 +0000
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| 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). | |
| Title | Information Disclosure in Amazon ECS Container Agent | |
| Weaknesses | CWE-277 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: AMZN
Published: 2025-08-14T16:15:19.103Z
Updated: 2025-08-14T19:22:07.557Z
Reserved: 2025-08-14T13:33:16.484Z
Link: CVE-2025-9039
Updated: 2025-08-14T18:42:51.566Z
Status : Awaiting Analysis
Published: 2025-08-14T17:15:42.393
Modified: 2025-08-15T13:12:51.217
Link: CVE-2025-9039
No data.