Podman secrets value of type `env` revealed in container inspection

[bmenant]

Issue Description

Values of secrets attached to containers with type=env option are available on container inspection (running or exited).
It is not the case with secrets attached with type=mount option.

I do not know if this is expected per specs?

Steps to reproduce the issue

Steps to reproduce the issue

1. printf 'secret value' | podman secret create mysecret -
2. podman container run --rm --secret mysecret,type=env -d alpine sleep 300
3. podman container inspect -l --format '{{ .Config.Env }}'

Describe the results you received

The value of the secret is disclosed on container inspection in the Config.Env attribute: [... mysecret=secret value]
It is not listed in the Config.Secrets attribute.

Describe the results you expected

I’d expect it to not appear in the Config.Env attribute.
I’d expect to find it (undisclosed) in the Config.Secrets attribute, like mount type secrets are.

podman info output

host:
  arch: amd64
  buildahVersion: 1.37.1
  cgroupControllers:
  - cpu
  - io
  - memory
  - pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.10-1.fc40.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.10, commit: '
  cpuUtilization:
    idlePercent: 99
    systemPercent: 0.31
    userPercent: 0.69
  cpus: 16
  databaseBackend: boltdb
  distribution:
    distribution: fedora
    variant: workstation
    version: "40"
  eventLogger: journald
  freeLocks: 2015
  hostname: fedora
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 1001
      size: 1
    - container_id: 1
      host_id: 589824
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 1001
      size: 1
    - container_id: 1
      host_id: 589824
      size: 65536
  kernel: 6.10.6-200.fc40.x86_64
  linkmode: dynamic
  logDriver: journald
  memFree: 372310016
  memTotal: 14339981312
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: aardvark-dns-1.12.1-1.fc40.x86_64
      path: /usr/libexec/podman/aardvark-dns
      version: aardvark-dns 1.12.1
    package: netavark-1.12.1-1.fc40.x86_64
    path: /usr/libexec/podman/netavark
    version: netavark 1.12.1
  ociRuntime:
    name: crun
    package: crun-1.15-1.fc40.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.15
      commit: e6eacaf4034e84185fd8780ac9262bbf57082278
      rundir: /run/user/1001/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
  os: linux
  pasta:
    executable: /usr/bin/pasta
    package: passt-0^20240821.g1d6142f-1.fc40.x86_64
    version: |
      pasta 0^20240821.g1d6142f-1.fc40.x86_64
      Copyright Red Hat
      GNU General Public License, version 2 or later
        <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
  remoteSocket:
    exists: false
    path: /run/user/1001/podman/podman.sock
  rootlessNetworkCmd: pasta
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: false
  slirp4netns:
    executable: ""
    package: ""
    version: ""
  swapFree: 8586260480
  swapTotal: 8589930496
  uptime: 3h 28m 1.00s (Approximately 0.12 days)
  variant: ""
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
store:
  configFile: /home/bmenant/.config/containers/storage.conf
  containerStore:
    number: 16
    paused: 0
    running: 0
    stopped: 16
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/bmenant/.local/share/containers/storage
  graphRootAllocated: 498387124224
  graphRootUsed: 115184447488
  graphStatus:
    Backing Filesystem: btrfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Supports shifting: "false"
    Supports volatile: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 134
  runRoot: /run/user/1001/containers
  transientStore: false
  volumePath: /home/bmenant/.local/share/containers/storage/volumes
version:
  APIVersion: 5.2.1
  Built: 1723593600
  BuiltTime: Wed Aug 14 02:00:00 2024
  GitCommit: ""
  GoVersion: go1.22.5
  Os: linux
  OsArch: linux/amd64
  Version: 5.2.1

Podman in a container

No

Privileged Or Rootless

Rootless

Upstream Latest Release

No

Additional environment details

No response

Additional information

No response

[auyer]

Hi. I was able to reproduce this.
Can any maintainer confirm if this should be fixed or is working as intended?

If so, I have an implementation ready.
Should there be an option to allow showing/hiding these secrets ? Or always hide it by default?

Thanks.