[8.17](backport #6329) Prevent leaking secrets when logging component model #6383
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* feat: Prevent leaking secrets when logging component model * add changelog entry * test: add test checking that secrets are not leaked when components are marhsaled to JSON (cherry picked from commit d359ccd)
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andrzej-stencel
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Dec 18, 2024
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This pull request has not been merged yet. Could you please review and merge it @andrzej-stencel? 🙏 |
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What does this PR do?
Implements
MarshalJSONmethod on thecomponent.Componentstruct, so that when the component model is logged, the output does not contain any secrets that might be part of the component model (e.g. API keys to HTTP endpoints etc.).This change also restores the debug log dumping the component model that was removed in #5201.
Why is it important?
This is part of the effort to prevent leaking secrets in logs as much as possible.
Checklist
[ ] I have commented my code, particularly in hard-to-understand areas[ ] I have made corresponding changes to the documentation[ ] I have made corresponding change to the default configuration files[ ] I have added tests that prove my fix is effective or that my feature works./changelog/fragmentsusing the changelog tool[ ] I have added an integration test or an E2E testHow to test this PR locally
go build .)agent.logging.leveltodebuginelastic-agent.ymlfilesudo ./elastic-agent)The output I'm seeing is:
{"log.level":"debug","@timestamp":"2024-12-13T13:40:20.271Z","log.origin":{"function":"github.com/elastic/elastic-agent/internal/pkg/agent/application/coordinator.(*Coordinator).refreshComponentModel","file.name":"coordinator/coordinator.go","file.line":1403},"message":"Updating running component model","log":{"source":"elastic-agent"},"components":[{"ID":"system/metrics-default","InputType":"system/metrics","OutputType":"elasticsearch","ErrMsg":"input not supported","Units":[{"ID":"system/metrics-default-unique-system-metrics-input"},{"ID":"system/metrics-default"}]},{"ID":"filestream-monitoring","InputType":"filestream","OutputType":"elasticsearch","ErrMsg":"input not supported","Units":[{"ID":"filestream-monitoring-filestream-monitoring-agent"},{"ID":"filestream-monitoring"}]},{"ID":"beat/metrics-monitoring","InputType":"beat/metrics","OutputType":"elasticsearch","ErrMsg":"input not supported","Units":[{"ID":"beat/metrics-monitoring-metrics-monitoring-beats"},{"ID":"beat/metrics-monitoring"}]},{"ID":"http/metrics-monitoring","InputType":"http/metrics","OutputType":"elasticsearch","ErrMsg":"input not supported","Units":[{"ID":"http/metrics-monitoring-metrics-monitoring-agent"},{"ID":"http/metrics-monitoring"}]}],"ecs.version":"1.6.0"}
Here's the formatted and JSON-sorted version of this debug log:
logged component model - after change
{ "@timestamp": "2024-12-13T13:40:20.271Z", "components": [ { "ErrMsg": "input not supported", "ID": "system/metrics-default", "InputType": "system/metrics", "OutputType": "elasticsearch", "Units": [ { "ID": "system/metrics-default-unique-system-metrics-input" }, { "ID": "system/metrics-default" } ] }, { "ErrMsg": "input not supported", "ID": "filestream-monitoring", "InputType": "filestream", "OutputType": "elasticsearch", "Units": [ { "ID": "filestream-monitoring-filestream-monitoring-agent" }, { "ID": "filestream-monitoring" } ] }, { "ErrMsg": "input not supported", "ID": "beat/metrics-monitoring", "InputType": "beat/metrics", "OutputType": "elasticsearch", "Units": [ { "ID": "beat/metrics-monitoring-metrics-monitoring-beats" }, { "ID": "beat/metrics-monitoring" } ] }, { "ErrMsg": "input not supported", "ID": "http/metrics-monitoring", "InputType": "http/metrics", "OutputType": "elasticsearch", "Units": [ { "ID": "http/metrics-monitoring-metrics-monitoring-agent" }, { "ID": "http/metrics-monitoring" } ] } ], "ecs.version": "1.6.0", "log": { "source": "elastic-agent" }, "log.level": "debug", "log.origin": { "file.line": 1403, "file.name": "coordinator/coordinator.go", "function": "github.com/elastic/elastic-agent/internal/pkg/agent/application/coordinator.(*Coordinator).refreshComponentModel" }, "message": "Updating running component model" }Here's the same debug log before MarshalJSON was implemented - note that it includes details like
"api_key": "example-key", which is not present in the modified output.logged component model - before change
{ "@timestamp": "2024-12-10T13:36:42.542Z", "components": [ { "Component": { "limits": { "source": { "go_max_procs": 0 } } }, "Err": { "Reason": "input not supported" }, "ErrMsg": "", "Features": { "fqdn": {}, "source": { "agent": { "features": { "fqdn": { "enabled": false } } } } }, "ID": "system/metrics-default", "InputSpec": { "BinaryName": "", "BinaryPath": "", "InputType": "", "Spec": { "Aliases": null, "Command": null, "Description": "", "IsolateUnits": false, "Name": "", "Outputs": null, "Platforms": null, "ProxiedActions": null, "Runtime": { "Preventions": null }, "Service": null } }, "InputType": "system/metrics", "OutputType": "elasticsearch", "Units": [ { "Config": { "data_stream": { "namespace": "default" }, "id": "unique-system-metrics-input", "source": { "data_stream.namespace": "default", "id": "unique-system-metrics-input", "streams": [ { "data_stream.dataset": "system.cpu", "metricsets": [ "cpu" ] }, { "data_stream.dataset": "system.memory", "metricsets": [ "memory" ] }, { "data_stream.dataset": "system.network", "metricsets": [ "network" ] }, { "data_stream.dataset": "system.filesystem", "metricsets": [ "filesystem" ] } ], "type": "system/metrics" }, "streams": [ { "data_stream": { "dataset": "system.cpu" }, "source": { "data_stream.dataset": "system.cpu", "metricsets": [ "cpu" ] } }, { "data_stream": { "dataset": "system.memory" }, "source": { "data_stream.dataset": "system.memory", "metricsets": [ "memory" ] } }, { "data_stream": { "dataset": "system.network" }, "source": { "data_stream.dataset": "system.network", "metricsets": [ "network" ] } }, { "data_stream": { "dataset": "system.filesystem" }, "source": { "data_stream.dataset": "system.filesystem", "metricsets": [ "filesystem" ] } } ], "type": "system/metrics" }, "Err": null, "ID": "system/metrics-default-unique-system-metrics-input", "LogLevel": 3, "Type": 0 }, { "Config": { "data_stream": {}, "source": { "api_key": "example-key", "hosts": [ "127.0.0.1:9200" ], "preset": "balanced", "type": "elasticsearch" }, "type": "elasticsearch" }, "Err": null, "ID": "system/metrics-default", "LogLevel": 3, "Type": 1 } ] }, { "Component": { "limits": { "source": { "go_max_procs": 0 } } }, "Err": { "Reason": "input not supported" }, "ErrMsg": "", "Features": { "fqdn": {}, "source": { "agent": { "features": { "fqdn": { "enabled": false } } } } }, "ID": "beat/metrics-monitoring", "InputSpec": { "BinaryName": "", "BinaryPath": "", "InputType": "", "Spec": { "Aliases": null, "Command": null, "Description": "", "IsolateUnits": false, "Name": "", "Outputs": null, "Platforms": null, "ProxiedActions": null, "Runtime": { "Preventions": null }, "Service": null } }, "InputType": "beat/metrics", "OutputType": "elasticsearch", "Units": [ { "Config": { "data_stream": { "namespace": "default", "source": { "namespace": "default" } }, "id": "metrics-monitoring-beats", "name": "metrics-monitoring-beats", "source": { "data_stream": { "namespace": "default" }, "id": "metrics-monitoring-beats", "name": "metrics-monitoring-beats", "streams": [ { "data_stream": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/Hk6rvk9TDibMPcDvpl0jkLE-qDsHWVYL.sock" ], "id": "metrics-monitoring-metricbeat", "index": "metrics-elastic_agent.metricbeat-default", "metricsets": [ "stats" ], "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "metricbeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "add_fields": { "fields": { "binary": "metricbeat", "id": "beat/metrics-monitoring" }, "target": "component" } } ] }, { "data_stream": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/akSPbdqgaHaTY0_J01-dsfYK6JpMz2zn.sock" ], "id": "metrics-monitoring-metricbeat", "index": "metrics-elastic_agent.metricbeat-default", "metricsets": [ "stats" ], "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "metricbeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "add_fields": { "fields": { "binary": "metricbeat", "id": "http/metrics-monitoring" }, "target": "component" } } ] }, { "data_stream": { "dataset": "elastic_agent.filebeat", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/xTEtpJ7117ppc6OYvJCaYHbDW8mLjXGe.sock" ], "id": "metrics-monitoring-filebeat", "index": "metrics-elastic_agent.filebeat-default", "metricsets": [ "stats" ], "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.filebeat", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.filebeat" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "filebeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "add_fields": { "fields": { "binary": "filebeat", "id": "filestream-monitoring" }, "target": "component" } } ] } ], "type": "beat/metrics" }, "streams": [ { "data_stream": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "source": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "type": "metrics" }, "id": "metrics-monitoring-metricbeat", "source": { "data_stream": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/Hk6rvk9TDibMPcDvpl0jkLE-qDsHWVYL.sock" ], "id": "metrics-monitoring-metricbeat", "index": "metrics-elastic_agent.metricbeat-default", "metricsets": [ "stats" ], "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "metricbeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "add_fields": { "fields": { "binary": "metricbeat", "id": "beat/metrics-monitoring" }, "target": "component" } } ] } }, { "data_stream": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "source": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "type": "metrics" }, "id": "metrics-monitoring-metricbeat", "source": { "data_stream": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/akSPbdqgaHaTY0_J01-dsfYK6JpMz2zn.sock" ], "id": "metrics-monitoring-metricbeat", "index": "metrics-elastic_agent.metricbeat-default", "metricsets": [ "stats" ], "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.metricbeat" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "metricbeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "add_fields": { "fields": { "binary": "metricbeat", "id": "http/metrics-monitoring" }, "target": "component" } } ] } }, { "data_stream": { "dataset": "elastic_agent.filebeat", "namespace": "default", "source": { "dataset": "elastic_agent.filebeat", "namespace": "default", "type": "metrics" }, "type": "metrics" }, "id": "metrics-monitoring-filebeat", "source": { "data_stream": { "dataset": "elastic_agent.filebeat", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/xTEtpJ7117ppc6OYvJCaYHbDW8mLjXGe.sock" ], "id": "metrics-monitoring-filebeat", "index": "metrics-elastic_agent.filebeat-default", "metricsets": [ "stats" ], "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.filebeat", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.filebeat" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "filebeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "add_fields": { "fields": { "binary": "filebeat", "id": "filestream-monitoring" }, "target": "component" } } ] } } ], "type": "beat/metrics" }, "Err": null, "ID": "beat/metrics-monitoring-metrics-monitoring-beats", "LogLevel": 3, "Type": 0 }, { "Config": { "data_stream": {}, "source": { "api_key": "example-key", "hosts": [ "127.0.0.1:9200" ], "preset": "balanced", "type": "elasticsearch" }, "type": "elasticsearch" }, "Err": null, "ID": "beat/metrics-monitoring", "LogLevel": 3, "Type": 1 } ] }, { "Component": { "limits": { "source": { "go_max_procs": 0 } } }, "Err": { "Reason": "input not supported" }, "ErrMsg": "", "Features": { "fqdn": {}, "source": { "agent": { "features": { "fqdn": { "enabled": false } } } } }, "ID": "http/metrics-monitoring", "InputSpec": { "BinaryName": "", "BinaryPath": "", "InputType": "", "Spec": { "Aliases": null, "Command": null, "Description": "", "IsolateUnits": false, "Name": "", "Outputs": null, "Platforms": null, "ProxiedActions": null, "Runtime": { "Preventions": null }, "Service": null } }, "InputType": "http/metrics", "OutputType": "elasticsearch", "Units": [ { "Config": { "data_stream": { "namespace": "default", "source": { "namespace": "default" } }, "id": "metrics-monitoring-agent", "name": "metrics-monitoring-agent", "source": { "data_stream": { "namespace": "default" }, "id": "metrics-monitoring-agent", "name": "metrics-monitoring-agent", "streams": [ { "data_stream": { "dataset": "elastic_agent.elastic_agent", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http://localhost:6791" ], "id": "metrics-monitoring-agent", "index": "metrics-elastic_agent.elastic_agent-default", "metricsets": [ "json" ], "namespace": "agent", "path": "/stats", "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.elastic_agent", "namespace": "default", "type": "metrics" }, "target": "data_stream" } }, { "add_fields": { "fields": { "dataset": "elastic_agent.elastic_agent" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "elastic-agent", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "copy_fields": { "fail_on_error": false, "fields": [ { "from": "http.agent.beat.cpu", "to": "system.process.cpu" }, { "from": "http.agent.beat.memstats.memory_sys", "to": "system.process.memory.size" }, { "from": "http.agent.beat.handles", "to": "system.process.fd" }, { "from": "http.agent.beat.cgroup", "to": "system.process.cgroup" }, { "from": "http.agent.apm-server", "to": "apm-server" }, { "from": "http.filebeat_input", "to": "filebeat_input" } ], "ignore_missing": true } }, { "drop_fields": { "fields": [ "http" ], "ignore_missing": true } }, { "add_fields": { "fields": { "binary": "elastic-agent", "id": "elastic-agent" }, "target": "component" } } ] }, { "data_stream": { "dataset": "elastic_agent.elastic_agent", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/Hk6rvk9TDibMPcDvpl0jkLE-qDsHWVYL.sock" ], "id": "metrics-monitoring-metricbeat-1", "index": "metrics-elastic_agent.elastic_agent-default", "metricsets": [ "json" ], "namespace": "agent", "path": "/stats", "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.elastic_agent" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "metricbeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "copy_fields": { "fail_on_error": false, "fields": [ { "from": "http.agent.beat.cpu", "to": "system.process.cpu" }, { "from": "http.agent.beat.memstats.memory_sys", "to": "system.process.memory.size" }, { "from": "http.agent.beat.handles", "to": "system.process.fd" }, { "from": "http.agent.beat.cgroup", "to": "system.process.cgroup" }, { "from": "http.agent.apm-server", "to": "apm-server" }, { "from": "http.filebeat_input", "to": "filebeat_input" } ], "ignore_missing": true } }, { "drop_fields": { "fields": [ "http" ], "ignore_missing": true } }, { "add_fields": { "fields": { "binary": "metricbeat", "id": "beat/metrics-monitoring" }, "target": "component" } } ] }, { "data_stream": { "dataset": "elastic_agent.elastic_agent", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/akSPbdqgaHaTY0_J01-dsfYK6JpMz2zn.sock" ], "id": "metrics-monitoring-metricbeat-1", "index": "metrics-elastic_agent.elastic_agent-default", "metricsets": [ "json" ], "namespace": "agent", "path": "/stats", "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.elastic_agent" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "metricbeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "copy_fields": { "fail_on_error": false, "fields": [ { "from": "http.agent.beat.cpu", "to": "system.process.cpu" }, { "from": "http.agent.beat.memstats.memory_sys", "to": "system.process.memory.size" }, { "from": "http.agent.beat.handles", "to": "system.process.fd" }, { "from": "http.agent.beat.cgroup", "to": "system.process.cgroup" }, { "from": "http.agent.apm-server", "to": "apm-server" }, { "from": "http.filebeat_input", "to": "filebeat_input" } ], "ignore_missing": true } }, { "drop_fields": { "fields": [ "http" ], "ignore_missing": true } }, { "add_fields": { "fields": { "binary": "metricbeat", "id": "http/metrics-monitoring" }, "target": "component" } } ] }, { "data_stream": { "dataset": "elastic_agent.elastic_agent", "namespace": "default", "type": "metrics" }, "failure_threshold": 5, "hosts": [ "http+unix:///vagrant/data/tmp/xTEtpJ7117ppc6OYvJCaYHbDW8mLjXGe.sock" ], "id": "metrics-monitoring-filebeat-1", "index": "metrics-elastic_agent.elastic_agent-default", "metricsets": [ "json" ], "namespace": "agent", "path": "/stats", "period": "1m0s", "processors": [ { "add_fields": { "fields": { "dataset": "elastic_agent.elastic_agent" }, "target": "event" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891", "process": "filebeat", "snapshot": false, "version": "9.0.0" }, "target": "elastic_agent" } }, { "add_fields": { "fields": { "id": "7f563b50-11f1-4e7c-8361-31458142a891" }, "target": "agent" } }, { "copy_fields": { "fail_on_error": false, "fields": [ { "from": "http.agent.beat.cpu", "to": "system.process.cpu" }, { "from": "http.agent.beat.memstats.memory_sys", "to": "system.process.memory.size" }, { "from": "http.agent.beat.handles", "to": "system.process.fd" }, { "from": "http.agent.beat.cgroup", "to": "system.process.cgroup" }, { "from": "http.agent.apm-server", "to": "apm-server" }, { "from": "http.filebeat_input", "to": "filebeat_input" } ], "ignore_missing": true } }, { "drop_fields": { "fields": [ "http" ], "ignore_missing": true } (…)