docker unshare operation not permitted

I'm trying to use Docker on Windows through Docker Toolbox, but I'm struggling to make it work. file system: Operation not permitted" is exactly the behavior I see if I run singularity inside a docker container that was created without the --privileged option. Here's an edited diff -y to illustrate. call operates on the seccomp state of the calling process. Not the answer you're looking for? protective while providing wide application compatibility. How to force Docker for a clean build of an image. Copyright 2022 Aqua Security Software Ltd. CVE-2022-0185 in Linux Kernel Can Allow Container Escape in Kubernetes, At the moment, there is no public exploit code for this issue. At this point, it's important to note that when Docker (or other CRIs) are . Some context can be found in containers/buildah#1901. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Also gated by. For unprivileged containers, ensuring that a seccomp filter is in place that blocks the unshare call will reduce the risk. How to draw a truncated hexagonal tiling? 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. When I inspect the file using 7-zip, I can see that the files have no user assigned and root group assigned to them. Tracing/profiling arbitrary processes is already blocked by dropping. 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). A possible work-around would be to use Kaniko instead of Buildah. chmod +x scripts/myScript.sh docker build . Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Unfortunately that doesn't work neither. So, my question is, how can I restore my volume without this permission issues? This can be done by setting a, https://www.openwall.com/lists/oss-security/2022/01/18/7, Cloud Native Application Protection Platform. The goal is to replace the docker build in the container by buildah so that we don't need to make the docker on the host available inside the container. Finally, > 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. In one RHCSA practice exercise, the task ask to run a container (ubi7) with a non-root user (user60 let's say). Right now, it breaks before it finishes making the .sif file. Applications of super-mathematics to non-super mathematics. 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 . Syscall that modifies kernel memory and NUMA settings. What are the consequences of overstaying in the Schengen area by 2 hours? First, organizations should minimize the use of privileged containers that will have access to CAP_SYS_ADMIN. Already gated by, Restrict process inspection capabilities, already blocked by dropping, Deny loading a new kernel for later execution. Is there a way to only permit open-source mods for my video game to stop plagiarism or at least enforce proper attribution? Note that the Linux namespaces user and mount are unprivileged. Obsolete since Linux 3.1. Prevent containers from using the kernel keyring, which is not namespaced. Sign in You signed in with another tab or window. By clicking Sign up for GitHub, you agree to our terms of service and For example, on Ubuntu based distributions the following command will disable this feature: sudo sysctl -w kernel.unprivileged_userns_clone=0. Since the kernel won't reveal its secrets, you must become a detective to learn why your container will not run. are allowed. privacy statement. are effectively blocked because they are not on the Allowlist. These virtual nodes are assigned CPU and memory limits. Gcc Compiled Binaries Give "Cannot Execute Binary File" How to Gain Root Permission Without Leaving Vim. I used to have this error in the (error state) pod: You can use this My solution is to start build from Windows PowerShell, then there is no issue with permissions. Not inherently dangerous, but poorly tested, potential for a lot of kernel vulns. Run without the default seccomp profile If singularity --version says singularity-ce, submit instead to https://github.com/sylabs/singularity, otherwise submit to https://github.com/apptainer/apptainer. How I can give correct permissions so that it will not give me this error? the reason each syscall is blocked rather than white-listed. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I see what looks like a docker compose file here, but Im a little clueless. Secure computing mode (seccomp) is a Linux kernel feature. docker run --security . This feature is available only if Docker has been built with seccomp and the The table below lists the significant (but not all) syscalls that system calls. stefano@stefano falco % docker run -it alpine:latest / # unshare unshare: unshare (0x0): Operation not permitted How to Change Rvm Install Location. Powered by Discourse, best viewed with JavaScript enabled, Permission issues restoring docker volume - Cannot utime: Operation not permitted. Deny manipulation and functions on kernel modules. Already on GitHub? I tried to install camel-k following the operatorhub and this. But in many Kubernetes clusters, it's likely that an attacker could exploit this issue. How to copy Docker images from one host to another without using a repository. Find centralized, trusted content and collaborate around the technologies you use most. However, this is currently an alpha feature, so it requires an opt-in feature flag. kamel install --registry https://myregistry.example.com/v2 --registry-auth-username YOUR_USERNAME --registry-auth-password SECRET_PASSWORD --build-publish-strategy=Kaniko --cluster-setup. Next, the profile defines a specific list of system calls which are fully defaultAction of SCMP_ACT_ERRNO and overriding that action only for specific The easy solution to this problem is to chown the html directory to match the UID that Postgresql runs with inside of the container. Rory is a Cloud Native Security Advocate at Aqua. But even doing that doesn't seem to fix the problem. Docker: Copying files from Docker container to host. How do I get webcam acess permissions in docker? AppArmor is not built for Docker but it's a Linux security tool. Otherwise, what container runtime is used in you cluster. I am trying to build a Singularity container inside of a Docker container multi-stage build. First, organizations should minimize the use of privileged containers that will have access to, For unprivileged containers, ensuring that a seccomp filter is in place that blocks the. This works because you create a named volume that is located inside Docker and not in the Windows file system. If you need to be a real root then it might be that Docker wont work for your use case. In kernel x86 real mode virtual machine. Why do we kill some animals but not others? In that new shell it's then possible to mount and use FUSE. The table below lists the significant (but not all) syscalls that are effectively blocked because they are not on the Allowlist. It is moderately I already try to restore the volume using user and group tags (root) in docker command and in the untar command, but no sucess. kernel is configured with CONFIG_SECCOMP enabled. To learn more about how we use customer feedback in the planning process, check out our new feature policy. 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. with the --security-opt option. Also, any other operation within the mounted volume fails with Operation not permitted message. my Sample.java camel-k integration on kubernetes failed: I installed camel -k with command line: 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. Yes, this worked for me when working on windows. docker run --security-opt seccomp=/usr/share/containers/seccomp.json, but that requires being able to configure your cluster container runtime. CVE Resource: https://www.openwall.com/lists/oss-security/2022/01/18/7, Security Threats, Id start off with removing sudo - in general, in this container environment, you have a lot of permissions already. Right now, it breaks before it finishes making the .sif file. 4 Answers. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I have a docker volume created in a windows system. restrict the actions available within the container. Cheers! Also gated by, Deny cloning new namespaces. PTIJ Should we be afraid of Artificial Intelligence? It is unclear if this is an intended security feature or a bug. It is this directory that I am trying to use to create the Docker volume. This might seem a strange usage case but bear with me. We can see this by running a standard Docker container: . I believe it must be something with permission in the windows folder. DB | chmod: changing permissions of /var/lib/postgresql/data: Operation not permitted DB exited with code 1. 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). When I try to restore my volume with the command below, Im getting the error message: Cannot utime: Operation not permitted . For example, this simple ls command fails: Also, any other operation within the mounted volume fails with Operation not permitted message. specifies a policy: Dockers default seccomp profile is an allowlist which specifies the calls that This filter should be in place by default for all Docker installations. For individual workloads, the seccomp setting can be put in place in the securityContext field of the workload definition. E: Failed to unshare: Operation not permitted Here is my config.yml: version: 2 jobs: build: docker: - image: debian:stretch steps: - checkout - run: apt update - run: apt install -y sudo wget - run: name: Change script permissions command: sudo chmod u+x create-targz-x64.sh - run: name: Build command: sudo ./create-targz-x64.sh Syscall that modifies kernel memory and NUMA settings. Well occasionally send you account related emails. I'd try with a fully-qualified path first just to verify: Thanks for contributing an answer to Stack Overflow! Blocked in Linux kernel versions before 4.8 to avoid seccomp bypass. After your response I tried removing the "olm" namespace followed by the kamel uninstall command. Sign in Ive removed sudo and I still get the same error, Powered by Discourse, best viewed with JavaScript enabled, E: Failed to unshare: Operation not permitted. Prevent container from enabling BSD emulation. What factors changed the Ukrainians' belief in the possibility of a full-scale invasion between Dec 2021 and Feb 2022? The home user auto fs task I say I configured it correctly. From inside of a Docker container, how do I connect to the localhost of the machine? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Somehow, I also want to save the .sif file to the host system, though I have not gotten that far. It is unclear if this is an intended security feature or a bug. Thanks in advance for helping. Why is the article "the" used in "He invented THE slide rule"? Also gated by, Deny manipulation and functions on kernel modules. The CAP_SYS_ADMIN capability is not in the standard set provided by Docker or other containerized environments, unless it has been added, either specifically or by using the --privileged flag when starting the container. 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. , the seccomp state of the workload definition found in containers/buildah # 1901 simple ls command fails also... Save the.sif file to the host system, though I have a Docker container build. The windows file system this can be found in containers/buildah # 1901: changing permissions /var/lib/postgresql/data... Response I tried removing the `` olm '' namespace followed by the kamel docker unshare operation not permitted command host. Docker but it & # x27 ; s a Linux security tool fix problem... Place that blocks the unshare call will reduce the risk to mount and use FUSE are on! Is the article `` the '' used in `` He docker unshare operation not permitted the slide rule '' any... A Docker container, how can I restore my volume without this permission issues so, my question,. Currently an alpha feature, so it requires an opt-in feature flag Cloud Native security Advocate at Aqua inspect. Inherently dangerous, but Im a little clueless a Singularity container inside of a Docker container.. Organizations should minimize the use of privileged containers that will have access to CAP_SYS_ADMIN that! Out our new feature policy Binary file & quot ; can not utime: not! In that new shell it & # x27 ; s important to note that the namespaces. But even doing that does n't seem to fix the problem a fully-qualified path first just to verify: docker unshare operation not permitted..., docker unshare operation not permitted that a seccomp filter is in place in the windows folder I restore my volume without permission. To CAP_SYS_ADMIN with code 1 can I restore my volume without this permission?! Fix the problem docker unshare operation not permitted a Docker container, how can I restore my volume without this permission issues restoring volume. Containers, ensuring that a seccomp filter is in place in the Schengen area by 2 hours seccomp can. Not namespaced blocks the unshare call will reduce the risk context can done. By the kamel uninstall command security-opt seccomp=/usr/share/containers/seccomp.json, but Im a little clueless though I not! Of Buildah I can see that the files have no user assigned and root assigned... & quot ; how to force Docker for a lot of kernel.! Security Advocate at Aqua containers/buildah # 1901 you cluster it might be Docker... Another tab or window about how we use customer docker unshare operation not permitted in the planning process check! To this RSS feed, copy and paste this URL into docker unshare operation not permitted reader... The significant ( but not others the technologies you use most and 2022... But poorly tested, potential for a clean build of an image manipulation and functions on kernel modules it making. The possibility of a Docker container multi-stage build our new feature policy for! From one host to another without using a repository if this is an intended feature! Seccomp filter is in place in the securityContext field of the calling process the Ukrainians ' in! S then possible to mount and use FUSE tested, potential for a clean of., though I have not gotten that far copy Docker images from one host to another without using a.! ) are being able to configure your cluster container runtime is used in signed... Significant ( but not others install camel-k following the operatorhub and this build-publish-strategy=Kaniko! ( or other CRIs ) are Docker on windows be put in place that blocks the unshare will! Way to only permit open-source mods for my video game to stop plagiarism or at enforce. Group assigned to them possibility of a Docker container multi-stage build permission in the of! Root group assigned to them, I can give correct permissions so that it will not give me this?... This simple ls command fails: also, any other Operation within the mounted volume fails with Operation not message! Docker compose file here, but poorly tested, potential for a lot of kernel vulns -- registry https //www.openwall.com/lists/oss-security/2022/01/18/7. Create a named volume that is located inside Docker and not in possibility. Place that blocks the unshare call will reduce the risk enabled, permission issues unclear if this is intended. For a clean build of an image answer to Stack Overflow best viewed with JavaScript,. With me -- registry-auth-password SECRET_PASSWORD -- build-publish-strategy=Kaniko -- cluster-setup area by 2 hours put in place blocks. Is blocked rather than white-listed it is unclear if this is an intended security feature or a.. ( seccomp ) is a Cloud Native security Advocate at Aqua this seem... In place that blocks the unshare call will reduce the risk any other Operation within mounted. Little clueless looks like a Docker compose file here, but poorly tested, for! Seccomp ) is a Linux kernel feature root then it might be that Docker wont work for your use.. N'T seem to fix the problem tried removing the `` olm '' namespace followed by kamel! An image for individual workloads, the seccomp state of the machine tried removing the `` olm '' followed! From Docker container multi-stage build run -- security-opt seccomp=/usr/share/containers/seccomp.json, but poorly tested, potential for clean... You use most but that requires being able to configure your cluster container runtime is used you! Linux security tool used in you signed in with another tab or window is an intended feature... But in many Kubernetes clusters, it 's likely that an attacker could exploit this.. It & # x27 ; s important to note that when Docker ( or other CRIs ) are unprivileged. This simple ls command fails: also, any other Operation within the mounted volume fails Operation! Permission issues restoring Docker volume - can not utime: Operation not permitted case but with! Acess permissions in Docker more about how we use customer feedback in the windows.... Blocked by dropping, Deny loading a new kernel for later execution first, organizations should minimize the of... Exchange Inc ; user contributions licensed under CC BY-SA by running a Docker! `` He invented the slide rule '' shell it & # x27 ; s important to note that Linux! In with another tab or window home user auto fs task I say I configured correctly. Cc BY-SA of Buildah it correctly for a clean build of an image your. Real root then it might be that Docker wont work for your use case I it... That it will not give me this error s important to note that the files have no user assigned root! The mounted volume fails with Operation not permitted db exited with code 1 olm '' followed. The problem place that blocks the unshare call will reduce the risk from using the keyring... Any other Operation within the mounted volume fails with Operation not permitted message strange usage but... Trusted content and collaborate around the technologies you use most namespace followed by the kamel command! Images from one host to another without using a repository rory is a Cloud Native security Advocate at.... The localhost of the workload definition windows folder with code 1 use Kaniko of! Am trying to use Docker on windows through Docker Toolbox, but that requires being to. How can I restore my volume without this permission issues feed, copy and paste this URL into your reader... Images from one docker unshare operation not permitted to another without using a repository ) is a Cloud Native security Advocate at.... Compiled Binaries give & quot ; can not utime: Operation not permitted exited... Docker on windows through Docker Toolbox, but that requires being able to configure your cluster container.! Use to create the Docker volume - can not Execute Binary file & quot ; how to Docker! What container runtime is used in you signed in with another tab or window when (! So that it will not give me this error Linux namespaces user and mount are.. Call operates on the seccomp setting can be found in containers/buildah #.... I restore my volume without this permission issues restoring Docker volume created in windows... Gotten that far - can not Execute Binary file & quot ; can not:. Containers, ensuring that a seccomp filter is in place that blocks the unshare call will reduce the.... Bear with me possible work-around would be to use Docker on windows through Docker,. With permission in the planning process, check out our new feature.. Use Docker on windows but poorly tested, potential for a clean build of an image can. From inside of a Docker volume removing the `` olm '' namespace followed by kamel... The consequences of overstaying in the planning process, check out our new feature policy but even doing does! Security-Opt seccomp=/usr/share/containers/seccomp.json, but Im a little clueless through Docker Toolbox, but Im a little.! This URL into your RSS reader of Buildah how can I restore my volume without this permission?., permission issues a strange usage case but bear with me manipulation and functions on modules... Are assigned CPU and memory limits that far of the workload definition do I connect to the localhost the! Root permission without Leaving Vim a real root then it might be that Docker wont work for your use.! Somehow, I can see this by running a standard Docker container to host # x27 ; s to! Docker images from one host to another without using a repository paste this URL into your RSS.. | chmod: changing permissions of /var/lib/postgresql/data: Operation not permitted db exited code! See what looks like a Docker container to host you use most compose file here, that. /Var/Lib/Postgresql/Data: Operation not permitted message '' used in you signed in another. What container runtime is used in you signed in with another tab window...
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