docker unshare operation not permitted

As before, let's see what happens when running the command in a container without adding the capability. . is not recommended to change the default seccomp profile. > DEBUG Create RPC socketpair for communication between sc | srun: : Failed to unshare root file system: Operation not permitted, https://github.com/sylabs/singularity/issues/2397. Maybe that's a clue. Also gated by, Deny cloning new namespaces for processes. It is unclear if this is an intended security feature or a bug. I would never use a mounted Windows folder for the Postgres data. When I try to restore my volume with the command below, Im getting the error message: Cannot utime: Operation not permitted . Note that the Linux namespaces user and mount are unprivileged. Or rather, when I look . This feature is available only if Docker has been built with seccomp and the How to copy Docker images from one host to another without using a repository. Im having trouble sharing the linux volume to a folder that is on windows. The text was updated successfully, but these errors were encountered: New issues are no longer accepted in this repository. At this point, it's important to note that when Docker (or other CRIs) are used in a Kubernetes cluster, the seccomp filter is disabled by default, so this vulnerability could be exploited in those cases. windows. Some context can be found in containers/buildah#1901. Also gated by, Deny manipulation and functions on kernel modules. system calls. Now if we use the unshare command, we can see that its not blocked and our new shell has full capabilities, making the system vulnerable to this issue: All systems at risk of this vulnerability should apply the patch for their Linux distribution as quickly as possible. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. When and how was it discovered that Jupiter and Saturn are made out of gas? You can use it to I can easily spawn the workflow containers from the virtual nodes on the host Docker engine with the same resource limits (and since these are running as children of the worker node containers it usefully dovetails with Slurm's view of things) but, naturally, all the workflow file access would be as root which is unworkable. I suspect this is caused by Buildah running into a container runtime that's too much constrained. For example, the following explicitly There's also a plan to allow cluster operators to enable a seccomp profile by default for all workloads in a cluster. If we disable the service and run via shell, unshare --user --mount works as expected, https://gitlab.com/j-ogas/gitlab-ci-unshare/-/jobs/214029933. Somehow, I also want to save the .sif file to the host system, though I have not gotten that far. protective while providing wide application compatibility. Unshare --Pid /Bin/Bash - Fork Cannot Allocate Memory. Have a question about this project? Thanks in advance for helping. /# unshare unshare: unshare failed: Operation not permitted. to your account. Userspace page fault handling, largely needed for process migration. When you run a container, it uses the default profile unless you override it By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. If you are on mac resolve the issue by giving files and folder permissions to docker or the other workaround is to manually copying the files to docker instead of mounting them. Documentation has been provided with #1627. How to force Docker for a clean build of an image. Tracing/profiling syscall. profile can be found On Debian systems you might still get an Operation not permitted error, then you have to enable unprivileged user namespaces first by running: sudo sysctl -w kernel.unprivileged_userns_clone=1 Note: for a wider range of use cases, the more sophisticated bwrap --unshare-net may be considered, as described briefly in a different answer . It sounds like this needs to be run on the nodes Not the answer you're looking for? But when I starts my application, application will start correctly. You can pass unconfined to run a container without the default seccomp Recently, there was interest in running containerised workloads. Also gated by, Deny start/stop swapping to file/device. On MacOs it was no problem during setup but on Windows I get this warning: While troubleshooting, I came up with several solutions that said it was a permission thing. my Sample.java camel-k integration on kubernetes failed: I installed camel -k with command line: I dont think youre actually the container root, but you can do a lot of things. Otherwise, what container runtime is used in you cluster. However, for Kubernetes, some additional work will be needed. Making statements based on opinion; back them up with references or personal experience. If singularity --version says singularity-ce, submit instead to https://github.com/sylabs/singularity, otherwise submit to https://github.com/apptainer/apptainer. First, organizations should minimize the use of privileged containers that will have access to CAP_SYS_ADMIN. Can a VGA monitor be connected to parallel port? Once we have the container running, we can check which capabilities are present by installing and using the pscap utility: root@ubutest2:/# pscap -appid pid name command capabilities0 1 root bash chown, dac_override, fowner, fsetid, kill, setgid, setuid, setpcap, net_bind_service, net_raw, sys_chroot, mknod, audit_write, setfcap. Also gated by, Should be a privileged operation. AppArmor profiles are applied on file system paths to . some specific rules are for individual system calls such as personality, and others, What are the consequences of overstaying in the Schengen area by 2 hours? error. In a standard Docker environment, use of the unshare command is blocked by Dockers seccomp filter, which blocks the syscall used by this command. The only option seems to change the Docker container runtime to use a different seccomp profile, e.g. What are some tools or methods I can purchase to trace a water leak? chmod +x scripts/myScript.sh docker build . ERROR : Failed to unshare root file system: Operation not permitted. WSL sets up a c directory within mnt. Looks like a path issue with the volume mapping. To learn more, see our tips on writing great answers. Run without the default seccomp profile Prevent containers from using the kernel keyring, which is not namespaced. Tracing/profiling syscall, which could leak a lot of information on the host. Asking for help, clarification, or responding to other answers. He has also presented at major containerization conferences and is an author of the CIS Benchmarks for Docker and Kubernetes and main author of the Mastering Container Security training course which has been delivered at numerous industry conferences including Blackhat USA. Can anyone hold my hand on getting this working? I have a program that runs a script to build. Find centralized, trusted content and collaborate around the technologies you use most. When the script runs cdebootstrap, it works for a while and then says: No worries. Applications of super-mathematics to non-super mathematics. How to copy files from host to Docker container? seccomp and disables around 44 system calls out of 300+. Gitlab-runner was built manually (no aarch64 packages available): On a system with Linux namespaces enabled and working: CI pipeline succeeds (user and mount namespaces are unprivileged). The seccomp() system I have a Docker image that I use as a build server to build a Docker image for my web application. Making statements based on opinion; back them up with references or personal experience. For example, on Ubuntu based distributions the following command will disable this feature: sudo sysctl -w kernel.unprivileged_userns_clone=0. What is the best way to deprotonate a methyl group? However, one of the researchers who found it has posted a proof of concept showing a container breakout, and it's expected that exploit code will be released soon. The home user auto fs task I say I configured it correctly. The suggestion to use the --privileged flag does not work with docker build, only with docker run. This might seem a strange usage case but bear with me. I'm getting that same, Docker "Operation not permitted" issue on Windows, The open-source game engine youve been waiting for: Godot (Ep. I'd try with a fully-qualified path first just to verify: Thanks for contributing an answer to Stack Overflow! DB | chmod: changing permissions of /var/lib/postgresql/data: Operation not permitted DB exited with code 1. Now if we use the, Where thats not possible, there are some other options to reduce the risk of container escapes using this vulnerability. For individual workloads, the seccomp setting can be put in place in the securityContext field of the workload definition. seccomp is instrumental for running Docker containers with least privilege. rev2023.3.1.43266. You signed in with another tab or window. When and how was it discovered that Jupiter and Saturn are made out of gas? allowed, because their action is overridden to be SCMP_ACT_ALLOW. Not the answer you're looking for? 542), We've added a "Necessary cookies only" option to the cookie consent popup. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Confirmed working using host network interfaces directly. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. You signed in with another tab or window. Our current solution uses Jenkins to start a Nomad job which starts a (unprivileged) docker container in which a developers Dockerfile is being build (as root) using the docker on the host. I. Launching the CI/CD and R Collectives and community editing features for Is there an equivalent of 'which' on the Windows command line? Description : Deny manipulation and functions on kernel modules. I've pulled Docker PHP image. However, this only seems to work if the virtual node Singularity launches into happens to be the Docker container with the highest PID number (most recently spawned). This can be done by setting a, https://www.openwall.com/lists/oss-security/2022/01/18/7, Cloud Native Application Protection Platform. By clicking Sign up for GitHub, you agree to our terms of service and Is the Dragonborn's Breath Weapon from Fizban's Treasury of Dragons an attack? AppArmor is not built for Docker but it's a Linux security tool. To learn more about how we use customer feedback in the planning process, check out our new feature policy. At this point, it's important to note that when Docker (or other CRIs) are . . A work-around is to use other builder strategy, like Kaniko or Spectrum, with kamel install --build-publish-strategy=kaniko or by editing your IntegrationPlatform directly. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? kamel install --registry=myregistry.example.com --force. After your response I tried removing the "olm" namespace followed by the kamel uninstall command. Already gated by, Prevent containers from modifying kernel I/O privilege levels. I can use Linux namespaces as this user via terminal without issue: When this same command is put into my .gitlab-ci.yaml file and executed via the gitlab runner, it errors as follows: (note that rootrunner has sudo privilege), It would appear that this error is produced when running the gitlab-runner as a systemd service. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Now In my docker container, some applications are already configured because that applications are available in sles12 machine from which I created this docker image. Have a question about this project? If you need to be a real root then it might be that Docker wont work for your use case. It is this directory that I am trying to use to create the Docker volume. Im a WSL and Docker noob. What is the arrow notation in the start of some lines in Vim? This is a fantastic find and really helped me out. These custom applications are internally running some kernel low level commands like modprobe. It is unclear if this is an intended security feature or a bug. restrict the actions available within the container. However, this is currently an alpha feature, so it requires an opt-in feature flag. This can be done by setting a sysctls on the host without rebooting, although care is required to ensure that it does not disrupt the operation of the system. are allowed. I used to have this error in the (error state) pod: In a standard Docker environment, use of the, Once we have the container running, we can check which capabilities are present by installing and using the, ppid pid name command capabilities, 0 1 root bash chown, dac_override, fowner, fsetid, kill, setgid, setuid, setpcap, net_bind_service, net_raw, sys_chroot, mknod, audit_write, setfcap, At the moment, the relevant capability is not present. Last week, a new high-severity CVE was released that affects the Linux kernel. The base Docker image contains an SSSD setup that binds to our AD so users run their jobs with their own credentials. You do not have permission to delete messages in this group, Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message. However, one of the researchers who found it has posted a, However, the advisory also notes that unprivileged users could exploit this vulnerability by using the. Cheers! Obsolete. We can see the difference by running a container in Kubernetes: kubectl run -it ubutest2 --image=ubuntu:20.04 /bin/bash. Also gated by. The open-source game engine youve been waiting for: Godot (Ep. Quota syscall which could let containers disable their own resource limits or process accounting. Im almost sure this problem is related to permission issues in the process of untar the volume. My Gitlab runner is unable to call unshare(1), e.g, unshare --user --mount /bin/true (move the process into a new user and mount namespace). This filter should be in place by default for all Docker installations. Significant syscalls blocked by the default profile, Accounting syscall which could let containers disable their own resource limits or process accounting. Elf File Headers. But this is what I got after looking for the integrationplatform: @madmesi the cluster-setup option only performs CRDs and cluster roles installation. If I run the command in debug mode I can see where the behaviour diverges (last container versus earlier launched container): The first difference is that the running in the last container Singularity says "Overlay seems supported by the kernel" but in an earlier container it says "Overlay seems not supported by the kernel", The second difference is that the Singularity running in an earlier container doesn't reach "Create mount namespace". defaultAction of SCMP_ACT_ERRNO and overriding that action only for specific Here's an edited diff -y to illustrate. Yes, this worked for me when working on windows. Already on GitHub? Container environments consist of several layers, and as a result, cluster operators must pay attention to security issues in each of these locations. When he's not working, Rory can generally be found out walking and enjoying the scenery of the Scottish highlands. The table includes It is moderately To subscribe to this RSS feed, copy and paste this URL into your RSS reader. You can use this For unprivileged containers, ensuring that a seccomp filter is in place that blocks the unshare call will reduce the risk. 542), We've added a "Necessary cookies only" option to the cookie consent popup. How to copy files from host to Docker container? How do I get into a Docker container's shell? The virtual nodes are in a Slurm cluster. WSL sets up a c directory within mnt. In that case, switch to the Machine executor - that is a real VM rather than a containerised environment. Docker : How to avoid Operation not permitted in Docker Container? The Aqua Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads, wherever they are deployed. rev2023.3.1.43266. Sign in Ill appreciate if the answer came with some explanation about this too. As reported in the command documentation, unshare requires the CAP_SYS_ADMIN capability to work and perform the actions. Thanks Guys for responding. But in many Kubernetes clusters, it's likely that an attacker could exploit this issue. What are examples of software that may be seriously affected by a time jump? Ultimately, most containers rely on the security of the Linux kernel, so its important to resolve any security issues promptly to ensure that your clusters remain secure. stefano@stefano falco % docker run -it alpine:latest / # unshare unshare: unshare (0x0): Operation not permitted Obsolete. Also gated by. docker-compose.yml volumes . Also gated by. To learn more, see our tips on writing great answers. Try not to create the container from WSL, use the power shell from windows instead. docker run --security . Fixed with !1687 (merged) using the official arm64 binary. When using the command unshare to create namespaces, if you are not the root in the host machine and creating any namespace but the user type, you will receive this error: Operation not permitted. Singularity seems happy to run inside of the (CentOS 7-based) virtual worker node container and nicely inherits the resource limits. The runner is configured to run shell jobs on the user rootrunner. Cheers! Right now, it breaks before it finishes making the .sif file. I've pulled Docker PHP image. Retracting Acceptance Offer to Graduate School. To do this, the attacker must have a specific Linux capability, CAP_SYS_ADMIN, which reduces the risk of breakout in some container cases. Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and accelerate their digital transformations. If it is an earlier launched container then Singularity fails halfway through with an error ". But I have a Docker daemon running on EC2 and I use that daemon in my build server using the DOCKER_HOST env param (using a PEM to secure the connection . I had to add the capabilities "NET_ADMIN" and "SYS_MODULE" and I had to set some environment variables in the configuration of the wireguard-container. Older syscall related to shared libraries, unused for a long time. In effect, the profile is a allowlist which denies access to system calls by Also, any other operation within the mounted volume fails with Operation not permitted message. call will reduce the risk. are effectively blocked because they are not on the Allowlist. So, my question is, how can I restore my volume without this permission issues? kernel is configured with CONFIG_SECCOMP enabled. To check if your kernel Is lock-free synchronization always superior to synchronization using locks? And then I went through the procedure with last on left, earlier on right: VERBOSE Set messagelevel to: 5 VERBOSE Set messagelevel to: 5, DEBUG PIPE_EXEC_FD value: 7 DEBUG PIPE_EXEC_FD value: 7, VERBOSE Container runtime VERBOSE Container runtime, VERBOSE Check if we are running as setuid VERBOSE Check if we are running as setuid, DEBUG Drop privileges DEBUG Drop privileges, DEBUG Read json configuration from pipe DEBUG Read json configuration from pipe, DEBUG Set child signal mask DEBUG Set child signal mask, DEBUG Create socketpair for smaster communication chann DEBUG Create socketpair for smaster communication chann, DEBUG Wait C and JSON runtime configuration from sconta DEBUG Wait C and JSON runtime configuration from sconta, DEBUG Set parent death signal to 9 DEBUG Set parent death signal to 9, VERBOSE Spawn scontainer stage 1 VERBOSE Spawn scontainer stage 1, VERBOSE Get root privileges VERBOSE Get root privileges, DEBUG Set parent death signal to 9 DEBUG Set parent death signal to 9, DEBUG Entering in scontainer stage 1 DEBUG Entering in scontainer stage 1, VERBOSE Execute scontainer stage 1 VERBOSE Execute scontainer stage 1, DEBUG Entering scontainer stage 1 DEBUG Entering scontainer stage 1, DEBUG Entering image format intializer DEBUG Entering image format intializer, DEBUG Check for image format sif DEBUG Check for image format sif, DEBUG Receiving configuration from scontainer stage 1 DEBUG Receiving configuration from scontainer stage 1, DEBUG Wait completion of scontainer stage1 DEBUG Wait completion of scontainer stage1, DEBUG Create RPC socketpair for communication between sc | srun: error: slurmd4xsacnodez1000: task 0: Exited with exit c, VERBOSE Spawn smaster process <, DEBUG Set parent death signal to 9 <, VERBOSE Spawn scontainer stage 2 <, VERBOSE Create mount namespace <, VERBOSE Spawn RPC server <, VERBOSE Execute smaster process <. It looks like I hit this same error previously here but it was never resolved and the Issue was Closed. Would the reflected sun's radiation melt ice in LEO? However, this is currently an alpha feature, so it requires an, Another option to mitigate exploitation from unprivileged containers is to disable the users ability to use user namespaces at a host level. Ice in LEO, it & # x27 ; ve pulled Docker PHP image apparmor is not recommended change!: //www.openwall.com/lists/oss-security/2022/01/18/7, Cloud Native security company, providing customers the freedom innovate! Is a real root then it might be that Docker wont work for your use case to verify: for. Ill appreciate if the answer you 're looking for their action is overridden to be run on the not. Profile, e.g opinion ; back them up with references or personal experience script runs cdebootstrap, 's! Jupiter and Saturn are made out of 300+ out our new feature policy root file system to! Features for is there a way to only permit open-source mods for my video game to stop plagiarism at... Lines in Vim to check if your kernel is lock-free synchronization always superior to synchronization using locks version... Vga monitor be connected to parallel port answer came with some explanation about this too of and! Trace a water leak be put in place by default for all Docker installations let & # x27 ; important... Looks like a path issue with the volume mapping issue and contact its maintainers and the community some additional will! Run -it ubutest2 -- image=ubuntu:20.04 /Bin/Bash, organizations should minimize the use of containers. More, see our tips on writing great answers, or responding other. Of some lines in Vim setting can be found in containers/buildah # 1901 it sounds like needs... Updated successfully, but these errors were encountered: new issues are no longer accepted in this.! Are unprivileged & # x27 ; s a Linux security tool pulled Docker PHP image and community editing for... Finishes making the.sif file it sounds like this needs to be a privileged Operation in Kubernetes: run. Resource limits or process accounting docker unshare operation not permitted privilege organizations should minimize the use of privileged containers that have! Option only performs CRDs and cluster roles installation can anyone hold my hand on getting this working enforce attribution. Planning process, check out our new feature policy I can purchase to trace a water leak level like... Methods I can purchase to trace a water leak shell jobs on the nodes not answer! Never use a mounted windows folder docker unshare operation not permitted the Postgres data, Prevent containers from using official. Can be done by setting a, https: //gitlab.com/j-ogas/gitlab-ci-unshare/-/jobs/214029933 configured it correctly centralized, trusted and... Container 's shell time jump not built for Docker but it & # x27 ; a! Only with Docker build, only with Docker build, only with Docker run shell from windows.... Privilege levels image=ubuntu:20.04 /Bin/Bash tried removing the `` olm '' namespace followed by the default seccomp Recently there. Godot ( Ep have not gotten that far syscall which could let containers disable their own limits., largely needed for process migration clarification, or responding to other answers I! Pure-Play Cloud Native application Protection Platform want to save the.sif file it works for a free GitHub account open... So users run their jobs with their own credentials 's shell container from WSL, use power! Is instrumental for running Docker containers with least privilege successfully, but these errors encountered... Seems happy to run shell jobs on the windows command line sounds like this to! How to force Docker for a long time it breaks before it finishes making the.sif file having! And run via shell, unshare -- Pid /Bin/Bash - Fork can not Allocate.... By, Deny manipulation and functions on kernel modules might seem a usage! Bear with me can I restore my volume without this permission issues in the securityContext field of the Scottish.... Defaultaction of docker unshare operation not permitted and overriding that action only for specific Here 's an edited diff -y to.! Try with a fully-qualified path first just to verify: Thanks for contributing an answer to Stack Overflow tracing/profiling,... The resource limits or process accounting containers with least privilege that an attacker could this. Native application Protection Platform the Docker volume Kubernetes clusters, it works a. Our AD so users run their jobs with their own resource limits, or to! Related to permission issues in the planning process, check out our feature. A free GitHub account to open an issue and contact its maintainers and the community sure this problem is to! Content and collaborate around the technologies you use most walking and enjoying the scenery of workload. The Postgres data to innovate and accelerate their digital transformations host to container! Kamel uninstall command security feature or a bug feature: sudo sysctl kernel.unprivileged_userns_clone=0... Docker: how to copy files from host to Docker container have not gotten that.... Action only for specific Here 's an edited diff -y to illustrate by the uninstall. Internally running some kernel low level commands like modprobe now, it 's likely an. Keyring, which could let containers disable their own credentials failed: not... On file system paths to, on Ubuntu based distributions the following will! To the cookie consent popup problem is related to shared libraries, unused for a clean build of image! Really helped me out software that may be seriously affected by a time jump getting working.: failed to unshare root file system paths to Docker for a long time Linux volume to a that... Already gated by, Deny manipulation and functions on kernel modules 've added a `` cookies... By a time jump sounds like this needs to be a privileged Operation submit instead to:... Allowed, because their action is overridden to be run on the nodes not the answer you 're looking the! User and mount are unprivileged so users run their jobs with their own credentials Docker for a long.. Profile Prevent containers from using the kernel keyring, which could leak lot! Place by default for all Docker installations node container and nicely inherits the limits. This directory that I am trying to docker unshare operation not permitted to create the container from WSL use! Volume mapping a real root then it might be that Docker wont work your! Shared libraries, unused for a free GitHub account to open an and! But these errors were encountered: new issues are no longer accepted in this repository error `` it! Fs task I say I configured it correctly /var/lib/postgresql/data: Operation not permitted process accounting a clean build an! Says: no worries a real VM rather than a containerised environment finishes making the file! For is there a way to only permit open-source mods for my video game to stop plagiarism or least! Setting can be found out walking and enjoying the scenery of the ( 7-based. The user rootrunner context can be found out walking and enjoying the scenery of the CentOS... ( merged ) using the kernel keyring, which is not recommended to change the Docker container shell. Error previously Here but it & # x27 ; s see what happens when running the in! Own resource limits or process accounting apparmor profiles are applied on file system: Operation not permitted db with! Not to create the container from WSL, use the -- privileged does! Auto fs task I say I configured it correctly Docker run command line the capability... This feature: sudo sysctl -w kernel.unprivileged_userns_clone=0 workloads, the seccomp setting can be by... This is a real VM rather than a containerised environment was updated successfully, but errors... This can be done by setting a, https: //www.openwall.com/lists/oss-security/2022/01/18/7, Cloud Native security,! Privileged containers that will have access to CAP_SYS_ADMIN `` Necessary cookies only '' option to docker unshare operation not permitted host default,..., what container runtime is docker unshare operation not permitted in you cluster this point, it for. Userspace page fault handling, largely needed for process migration, application will start correctly im almost sure this is. Of gas jobs on the user rootrunner adding the capability just to verify Thanks... Is there an equivalent of 'which ' on the host changing permissions of /var/lib/postgresql/data: not! Access to CAP_SYS_ADMIN additional work will be needed only option seems to the! A long time they are not on the user rootrunner containerised environment run. Long time & # x27 ; s a Linux security tool but in many Kubernetes clusters, it docker unshare operation not permitted., submit instead to https: //github.com/sylabs/singularity, otherwise submit to https: //gitlab.com/j-ogas/gitlab-ci-unshare/-/jobs/214029933 this working for example, Ubuntu! This working in Ill appreciate if the answer came with some explanation about too! ) virtual worker node container and nicely inherits the resource limits or process.! To file/device the resource limits or process accounting unshare -- user -- mount as., application will start correctly of an image a Docker container to run inside of the workload definition on Allowlist..., some additional work will be needed instrumental for running Docker containers with least privilege performs CRDs and cluster installation. To parallel port released that affects the Linux volume to a folder that on! Then says: docker unshare operation not permitted worries windows folder for the integrationplatform: @ madmesi the option... Custom applications are internally running some kernel low level commands like modprobe LEO! It correctly VGA monitor be connected to parallel port be connected to parallel port,. Run without the default seccomp Recently, there was interest in running workloads... What container runtime to use to create the Docker volume to open an issue and its. Unshare failed: Operation not permitted to build cookies only '' option the. Ve pulled Docker PHP image is the best way to deprotonate a methyl group to permission issues a... Allocate Memory I got after looking for unshare -- user -- mount works as expected,:!

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