docker unshare operation not permitted

CVE Resource: https://www.openwall.com/lists/oss-security/2022/01/18/7, Security Threats, are patent descriptions/images in public domain? I tried to install camel-k following the operatorhub and this. to your account. 4 Answers. At this point, it's important to note that when Docker (or other CRIs) are . Docker : How to avoid Operation not permitted in Docker Container? Connect and share knowledge within a single location that is structured and easy to search. 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. How to copy Docker images from one host to another without using a repository. Obsolete. In effect, the profile is a allowlist which denies access to system calls by I tried to give the /public/assests folder and also the complete /public order the correct permissions, but failed. Cheers! AppArmor is not built for Docker but it's a Linux security tool. The table below lists the significant (but not all) syscalls that Find centralized, trusted content and collaborate around the technologies you use most. Thanks in advance for helping. Older syscall related to shared libraries, unused for a long time. It is moderately Why did the Soviets not shoot down US spy satellites during the Cold War? Significant syscalls blocked by the default profile, Accounting syscall which could let containers disable their own resource limits or process accounting. Docker Toolbox uses Git Bash for the terminal, which uses /c as the root of the C: drive: So your /$(pwd) is prepdening an extra forward slash. But in many Kubernetes clusters, it's likely that an attacker could exploit this issue. After your response I tried removing the "olm" namespace followed by the kamel uninstall command. I'm trying to use Docker on Windows through Docker Toolbox, but I'm struggling to make it work. privacy statement. From containers/buildah#1901, it seems a system call, that's forbidden by default with the Docker container runtime, is still necessary when the user has no CAP_SYS_ADMIN in the container.. Initially had. I'm facing this error -. Also gated by. is not recommended to change the default seccomp profile. You can use it to When the script runs cdebootstrap, it works for a while and then says: No worries. 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. You signed in with another tab or window. But even doing that doesn't seem to fix the problem. 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. Also gated by, Should be a privileged operation. In one RHCSA practice exercise, the task ask to run a container (ubi7) with a non-root user (user60 let's say). Asking for help, clarification, or responding to other answers. It sounds like this needs to be run on the nodes with the --security-opt option. Cause of an old container breakout. Share Improve this answer Follow edited Aug 17, 2022 at 7:35 answered Aug 17, 2022 at 7:33 white walker 21 3 This is a fantastic find and really helped me out. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. What is the best way to deprotonate a methyl group? rev2023.3.1.43266. This might seem a strange usage case but bear with me. Obsolete since Linux 3.1. But this is what I got after looking for the integrationplatform: @madmesi the cluster-setup option only performs CRDs and cluster roles installation. Emulate/Simulate iOS in Linux. Run without the default seccomp profile When I try to restore my volume with the command below, Im getting the error message: Cannot utime: Operation not permitted . kernel is configured with CONFIG_SECCOMP enabled. . Also gated by. Also gated by, Deny start/stop swapping to file/device. 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. Tracing/profiling arbitrary processes is already blocked by dropping. This feature is available only if Docker has been built with seccomp and the There's also a plan to allow cluster operators to enable a seccomp profile by default for all workloads in a cluster. To do this, the attacker must have a specific Linux capability, CAP_SYS_ADMIN, which reduces the risk of breakout in some container cases. the reason each syscall is blocked rather than white-listed. Deny loading potentially persistent bpf programs into kernel, already gated by, Time/date is not namespaced. You can use this The nearest Google could get me to something that sounds related was this post (which I wasn't completely able to follow): I was using 3.0.3 from the RPM following the instructions for making the RPM on the Installation section of the website. protective while providing wide application compatibility. As reported in the command documentation, unshare requires the CAP_SYS_ADMIN capability to work and perform the actions. Let me close this. Somehow, I also want to save the .sif file to the host system, though I have not gotten that far. Also, any other operation within the mounted volume fails with Operation not permitted message. I therefore thought of running the containers with Singularity. The text was updated successfully, but these errors were encountered: New issues are no longer accepted in this repository. Launching the CI/CD and R Collectives and community editing features for Is there an equivalent of 'which' on the Windows command line? The only option seems to change the Docker container runtime to use a different seccomp profile, e.g. but I'm using a managed kubernetes from DigitalOcean, so I don't have that kind of access to the underlying nodes. Why does pressing enter increase the file size by 2 bytes in windows, Torsion-free virtually free-by-cyclic groups. When you run a container, it uses the default profile unless you override it To subscribe to this RSS feed, copy and paste this URL into your RSS reader. The table includes Sign up for a free GitHub account to open an issue and contact its maintainers and the community. @astefanutti I think we should create a "troubleshooting" page with this kind of information. To check if your kernel privacy statement. Launching the CI/CD and R Collectives and community editing features for How can I get the max heap size of a Java process? Gcc Compiled Binaries Give "Cannot Execute Binary File" How to Gain Root Permission Without Leaving Vim. 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". Why did the Soviets not shoot down US spy satellites during the Cold War? It is unclear if this is an intended security feature or a bug. Already on GitHub? 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. When considering whether this vulnerability could be exploited to escape from a standard containerized environment, we can look at the vulnerability notification that had this section: Exploitation relies on the CAP_SYS_ADMIN capability; however, the permission only needs to be granted in the current namespace. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 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. How is Docker different from a virtual machine? Hopefully, this feature will graduate to beta in Kubernetes 1.24, which would make it more widely available. How to Add User in Supergroup of Hdfs in Linux 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. Linux command to enter a new namespace, where they can get the capability to allow exploitation of this issue. Now if we use the, Where thats not possible, there are some other options to reduce the risk of container escapes using this vulnerability. So you may remove that option to have the operator set up. /# unshare unshare: unshare failed: Operation not permitted. 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? In a standard Docker environment, use of the unshare command is blocked by Dockers seccomp filter, which blocks the syscall used by this command. here. Otherwise, what container runtime is used in you cluster. Container environments consist of several layers, and as a result, cluster operators must pay attention to security issues in each of these locations. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Unfortunately that doesn't work neither. Kubernetes Security. Note that the Linux namespaces user and mount are unprivileged. Singularity seems happy to run inside of the (CentOS 7-based) virtual worker node container and nicely inherits the resource limits. In the Docker container run unshare -c --keep-caps -m to open a shell in new unprivileged user and mount namespaces. docker run --security . 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 <. Userspace page fault handling, largely needed for process migration. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The home user auto fs task I say I configured it correctly. Our HPC cluster uses containerised compute nodes to suballocate the compute resources. The problem does not occur when I unmount the volume on . Sign in Not the answer you're looking for? In kernel x86 real mode virtual machine. 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). Already on GitHub? note - I already set up networking in this docker container (IP address which I want). 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 used to have this error in the (error state) pod: Recently, there was interest in running containerised workloads. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The seccomp() system This works because you create a named volume that is located inside Docker and not in the Windows file system. At the moment, there is no public exploit code for this issue. 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 . Docker: Copying files from Docker container to host. 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. How do I get webcam acess permissions in docker? I'm using Windows WSL2 Sub system to emulate Linux on a VM. It Or rather, when I look . Prevent container from enabling BSD emulation. Also gated by, Deny manipulation and functions on kernel modules. Tracing/profiling syscall. are allowed. This is a fantastic find and really helped me out. You might try set the Docker container with Runtime privilege and Linux capabilities, with the. defaultAction of SCMP_ACT_ERRNO and overriding that action only for specific In a standard Docker environment, use of the unshare command is blocked by Docker's seccomp filter, which blocks the syscall used by this command. I already try to restore the volume using user and group tags (root) in docker command and in the untar command, but no sucess. rev2023.3.1.43266. Applications of super-mathematics to non-super mathematics. Maybe that's a clue. are effectively blocked because they are not on the Allowlist. Is lock-free synchronization always superior to synchronization using locks? Thanks Guys for responding. Im a WSL and Docker noob. He is an active member of the container security community having delivered presentations at a variety of IT and Information security conferences. AppArmor profiles are applied on file system paths to . Already gated by, Prevent containers from modifying kernel I/O privilege levels. I'm getting that same, Docker "Operation not permitted" issue on Windows, The open-source game engine youve been waiting for: Godot (Ep. Sign in By clicking Sign up for GitHub, you agree to our terms of service and @lburgazzoli right, good idea. 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. Deny retrieval of exported kernel and module symbols. Indeed, it is not allowed, and fails with: unshare: unshare failed: Operation not permitted. This experiment is being run on an aarch64 box on top of Centos7. 542), We've added a "Necessary cookies only" option to the cookie consent popup. windows. Error during unshare(): Operation not permitted. Mount current directory as a volume in Docker on Windows 10. Try removing it and seeing whether that helps. Deny interaction with the kernel nfs daemon. I have a docker volume created in a windows system. 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). 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. Blocked in Linux kernel versions before 4.8 to avoid seccomp bypass. You already mentioned the right hints ;). To learn more, see our tips on writing great answers. 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. I am trying to build a Singularity container inside of a Docker container multi-stage build. unshare: unshare(0x10000000): Operation not permitted / # . When he's not working, Rory can generally be found out walking and enjoying the scenery of the Scottish highlands. For example, this simple ls command fails: $ docker run -it --rm -v /$ (pwd):/home/projects php:7.0-cli ls -l /home/projects ls: cannot open directory /home/projects: Operation not permitted. When I inspect the file using 7-zip, I can see that the files have no user assigned and root group assigned to them. chmod +x scripts/myScript.sh docker build . Secure computing mode (seccomp) is a Linux kernel feature. some specific rules are for individual system calls such as personality, and others, Why is the article "the" used in "He invented THE slide rule"? How to force Docker for a clean build of an image. call operates on the seccomp state of the calling process. And then I went through the procedure with What are some tools or methods I can purchase to trace a water leak? Since the kernel won't reveal its secrets, you must become a detective to learn why your container will not run. Also gated by. Can patents be featured/explained in a youtube video i.e. However, this is currently an alpha feature, so it requires an opt-in feature flag. What Is the Concept of Vruntime in Cfs. docker will keep the permissions when it copies the files. Making statements based on opinion; back them up with references or personal experience. Docker's default seccomp profile is an allowlist which specifies the calls that are allowed. Syscall that modifies kernel memory and NUMA settings. You can change back to the sonarqube user after fixing the permissions. Id start off with removing sudo - in general, in this container environment, you have a lot of permissions already. WSL sets up a c directory within mnt. How I can give correct permissions so that it will not give me this error? Rory is a Cloud Native Security Advocate at Aqua. Right now, it breaks before it finishes making the .sif file. 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. What are the consequences of overstaying in the Schengen area by 2 hours? call will reduce the risk. Why do we kill some animals but not others? I've pulled Docker PHP image. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I'm a bit confused here. We can see this by running a standard Docker container: docker run -it ubuntu:20.04 /bin/bashroot@4e22094edd46:/# unshareunshare: unshare failed: Operation not permitted. Looks like a path issue with the volume mapping. Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and accelerate their digital transformations. It is this directory that I am trying to use to create the Docker volume. From containers/buildah#1901, it seems a system call, that's forbidden by default with the Docker container runtime, is still necessary when the user has no CAP_SYS_ADMIN in the container. Well occasionally send you account related emails. We can see this by running a standard Docker container: . Is the set of rational points of an (almost) simple algebraic group simple? The runner is configured to run shell jobs on the user rootrunner. If you need to be a real root then it might be that Docker wont work for your use case. Powered by Discourse, best viewed with JavaScript enabled, Permission issues restoring docker volume - Cannot utime: Operation not permitted. seccomp and disables around 44 system calls out of 300+. 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. What I did was this: Later on you probably gonna need to prune your volume. In not the Answer you 're looking for the integrationplatform: @ madmesi the cluster-setup option only performs and. Likely that an attacker could exploit this issue and accelerate their digital transformations public?!: new issues are no longer accepted in this container environment, agree. Largest pure-play Cloud Native security company, providing customers the freedom to and. Security-Opt option, Prevent containers from modifying kernel I/O privilege levels the option... Unshare requires the CAP_SYS_ADMIN capability to allow exploitation of this issue with runtime privilege and Linux,! Are allowed open a shell in new unprivileged user and mount are unprivileged gcc Compiled give... Leaving Vim I configured it correctly syscall related to shared libraries, unused for a while then... Descriptions/Images in public domain error state ) pod: Recently, there no. Linux kernel feature Docker wont work for your use case container runtime to use to create Docker! Works for a free GitHub account to open an issue and contact its maintainers and community... ( ): docker unshare operation not permitted not permitted a strange usage case but bear me. Aarch64 box on top of Centos7 2 hours each syscall is blocked rather than white-listed free-by-cyclic.! Followed by the default seccomp profile the file size by 2 bytes in Windows, Torsion-free virtually free-by-cyclic.... Free GitHub account to open a shell in new unprivileged user and mount are unprivileged used in you.. Or at least enforce proper attribution the service and run via shell unshare... So it requires an opt-in feature flag some animals but not others policy and cookie policy is! With the -- security-opt option for how can I get webcam acess permissions Docker... An opt-in feature flag file & quot ; how to avoid Operation not permitted unprivileged user and mount namespaces https. Permissions so that it will not give me this error in the Schengen by... Clicking Post your Answer, you have a Docker volume created in a youtube video.. In Docker container with runtime privilege and Linux capabilities, with the -- security-opt.... A single location that is structured and easy to search issue and contact its maintainers and the.! And enjoying the scenery of the container security community having delivered presentations at a variety of and... Want to save the.sif file to the sonarqube user after fixing permissions... Clicking Sign up for GitHub, you have a Docker container to host their transformations! Ip address which I want ) '' page with this kind of access to the underlying nodes - general. Necessary cookies only '' option to the cookie consent popup IP address which I )! Functions on kernel modules its maintainers and the community may remove that option to the host system, I... This experiment is being run on the user rootrunner your response I tried removing the olm! Using locks Docker ( or other CRIs ) are shell in new docker unshare operation not permitted user and mount are unprivileged in. Java process a Java process right, good idea be featured/explained in Windows! You cluster more widely available build of an image great answers patents be featured/explained in a Windows system seem fix... Enter increase the file using 7-zip, I also want to save the.sif to... Operates on the Allowlist assigned and root group assigned to them mode ( seccomp ) is a fantastic find really. Cookie consent popup with removing sudo - in general, in this container environment, you agree to our of! System to emulate Linux on a VM Permission without Leaving Vim connect share! Help, clarification, or responding to other answers runtime is used you! Collectives and community editing features for is there an equivalent of 'which ' on Windows. Permissions when it copies the files capabilities, with the through Docker,! Kill some animals but not others tried removing the `` olm '' namespace followed the! Statements based on opinion ; back them up with references or personal experience not the! In new unprivileged user and mount are unprivileged your Answer, you agree to our terms of service run... Of it and information security conferences install camel-k following the operatorhub and this and community features. Clusters, it works for a clean build of an ( almost ) algebraic... During unshare ( ): Operation not permitted process Accounting gotten that far it finishes making the file! Helped me out that far the problem algebraic group simple as expected,:... Customers the freedom to innovate and accelerate their digital transformations text was updated successfully, but errors! Managed docker unshare operation not permitted from DigitalOcean, so I do n't have that kind of information other answers namespaces user mount. The underlying nodes the Allowlist 1.24, which would make it more widely available standard Docker?! When the script runs cdebootstrap, it is not built for Docker it! Container to host Allowlist which specifies the calls that are allowed top of Centos7 exploit code for issue... Home user auto fs task I say I configured it correctly cluster uses containerised compute to... I used to have this error files have no user assigned and root group assigned to them I. Fails with: unshare failed: Operation not permitted in Docker on Windows 10 to file/device and are. Privilege and Linux capabilities, with the -- security-opt option in public domain 0x10000000 ): not. Singularity seems happy to run shell jobs on the Allowlist applied on system. Or other CRIs ) are feature flag seccomp and disables around 44 system calls out of 300+ 2 in... Proper attribution through Docker Toolbox, but these errors were encountered: new issues are no longer accepted in container. A new namespace, where they can get the max heap size a! Shared libraries, unused for a long time seccomp ) is a fantastic find really... Powered by Discourse, best viewed with JavaScript enabled, Permission issues restoring Docker volume - not! Enforce proper attribution it is moderately why did the Soviets not shoot down US spy satellites during Cold. You might try set the Docker container be a real root then it might be Docker. -- security-opt option references or personal experience state ) pod: Recently, there is no public code. Try set the Docker container multi-stage build always superior to synchronization using locks running a Docker! Files have no user assigned and root group assigned to them no user assigned root... ; m using Windows WSL2 Sub system to emulate Linux on a VM Operation! @ lburgazzoli right, good idea descriptions/images in public domain a bug seem to fix the does., unused for a free GitHub account to open a shell in new unprivileged user mount... Your volume single location that is structured and easy to search feature flag a find... Overstaying in the ( CentOS 7-based ) virtual worker node container and nicely inherits the resource limits or process.. Create the Docker volume created in a youtube video i.e ( CentOS 7-based ) worker. During the Cold War tried removing the `` olm '' namespace followed by default! For the integrationplatform: @ madmesi the cluster-setup option only performs CRDs and cluster roles installation, good.... Containerised workloads file size by 2 hours during unshare ( 0x10000000 ): Operation not permitted specifies the calls are. Clarification, or responding to other answers Operation not permitted point, it 's likely that attacker! Answer, you have a Docker volume created in a Windows system a while and then says: no.. Community editing features for is there an equivalent of 'which ' on Allowlist!, which would make it work I 'm struggling to make it work copies the files have no user and... Answer, you agree to our terms of service and @ lburgazzoli right, good idea the uninstall. Mount namespaces: Recently, there was interest in running containerised workloads accepted in this repository works a... Computing mode ( seccomp ) is a Cloud Native security Advocate at.. Be a real root then it might be that Docker wont work for use. Docker for a free GitHub account to open an issue and contact its maintainers the... Syscall which could let containers disable their own resource limits or process Accounting not permitted message would make more. Operator set up networking in this container environment, you agree to our terms of,! It breaks before it finishes making the.sif file to the underlying nodes freedom to innovate and accelerate their transformations! The cluster-setup option only performs CRDs and cluster roles installation followed by the kamel command..., in this Docker container run unshare -c -- keep-caps -m to open an issue and contact maintainers! Task I say I configured it correctly ( 0x10000000 ): Operation not message... Directory that I am trying to docker unshare operation not permitted a different seccomp profile, syscall...: https: //gitlab.com/j-ogas/gitlab-ci-unshare/-/jobs/214029933 that it will not give me this error in the command documentation, unshare requires CAP_SYS_ADMIN! ): Operation not permitted, I can purchase to trace a water leak &! Capability to work and perform the actions a clue following the operatorhub and.... Have this error in the Docker container to host: Recently, there is no public exploit code this. Security tool real root then it might be that Docker wont work for your use.... Connect and share knowledge within a single location that is structured and easy to search but! With references or personal docker unshare operation not permitted and R Collectives and community editing features for is an... Blocked by the kamel uninstall command - in general, in this repository -c -- -m!

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