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(https://stackoverflow.co/labs/)   Learn more about Labs   (https://cdn.sstatic.net/Sites/stackoverflow/Img/apple-touch-icon.png?v=c78bd457575a) (/questions/77024144/docker-group-and-permissions) Docker group and permissions  (/questions/ask) Ask Question     (2023-09-01 14:55:18Z) Asked 12 months ago  Modified (?lastactivity) (2023-09-03 16:29:38Z) 12 months ago  (Viewed 836 times) Viewed 836 times         This question shows research effort; it is useful and clear  (70:3:31e,16:c4e1d94080827c10,10:1725174432,16:9c23e4f1e7337520,8:77024144,89006692bf8b88158a13ddee815f0ae277a46050bc53b2f8dc4e2bacae8b3181) 0  (This question does not show any research effort; it is unclear or not useful)    (70:3:31e,16:ccab0e1a33281f9e,10:1725174432,16:812a94d202673b02,8:77024144,bdb65eb92dc1ce8c772618efd23a3df013f83d0e5c9b70cc857afe945a60e7be)      Save this question.  (/posts/77024144/timeline)    Show activity on this post.    I am learning penetration testing, and I am trying to perform linux privilege escalation using docker. So I created a new user with the minimum permissions and I added it to the docker group. The problem now is that this new user cannot run docker. I tried to change the permission for this user using chmod but it does not work. Can anyone help me please to permit the new user to run docker!!
this is the new user: pentester:x:1001:1001::/home/pentester:/bin/bash   and this is the docker group: docker:x:976:anasgharsa,pentester   and when I am connected with the new user and try docker images or docker ps I get this error message : "unable to get absolute bin path: stat .: permission denied"  (/questions/tagged/linux) (show questions tagged 'linux') linux  (/questions/tagged/docker) (show questions tagged 'docker') docker  (/questions/tagged/permissions) (show questions tagged 'permissions') permissions      (/q/77024144) (Short permalink to this question) Share  Share a link to this question     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/77024144/edit) () Improve this question  Follow (70:3:31e,16:85c1739647bc5e15,10:1725174432,16:809790808042d6ce,8:77024144,0d4f105a1d348010bd6da71d51780913d4647eb5f81c588df89bb33747eb10db)  Follow this question to receive notifications       (/posts/77024144/revisions) (show all edits to this post) edited (2023-09-03 16:29:38Z) Sep 3, 2023 at 16:29    (/users/685806/pino) (Pino's user avatar)    (/users/685806/pino) Pino (reputation score) 9,123 (7 gold badges)  7  7 gold badges (56 silver badges)  56  56 silver badges (74 bronze badges)  74  74 bronze badges     asked (2023-09-01 14:55:18Z) Sep 1, 2023 at 14:55   (/users/18059093/anas-gharsa) (Anas Gharsa's user avatar)    (/users/18059093/anas-gharsa) Anas Gharsa Anas Gharsa (reputation score) 1 (1 bronze badge)  1  1 bronze badge           (Use comments to ask for more information or suggest improvements. Avoid answering questions in comments.) Add a comment |  (Expand to show all comments on this post)          1 Answer 1   Sorted by:  (/questions/77024144/docker-group-and-permissions?answertab=scoredesc#tab-top) Reset to default   (scoredesc) Highest score (default)  (trending) Trending (recent votes count more)  (modifieddesc) Date modified (newest first)  (createdasc) Date created (oldest first)            This answer is useful  (70:3:31e,16:bd03eb0223c7fea2,10:1725174432,16:49c025252f2c0d9c,8:77025418,f5c936b0634f46c363f659e259bd9b7427f409400be12bf5f171f7c9b2e70008) 0  (This answer is not useful)    (70:3:31e,16:74beba093fed8a03,10:1725174432,16:b32fad5bc7fbd004,8:77025418,5ee0d9fbb0c79d33f007f83c49d347f53e79dc4aa99feb78735b1d3855e8836e)      Save this answer.  (Loading when this answer was accepted…)     (/posts/77025418/timeline)    Show activity on this post.    It seems like user doesn't have the necessary permissions to run Docker.
I hope that you have included your user "pentester" in the following way: sudo usermod -aG docker pentester  First confirm that user is a member of the "docker" group, you can run the following command as the root user: grep '^docker:' /etc/group  If not then add the user by executing following command: sudo usermod -aG docker pentester  Confirm the user's membership in the "docker" group by executing the following command: groups pentester  Restart the docker services by the following command: sudo service docker restart  Start a new shell session.   (/a/77025418) (Short permalink to this answer) Share  Share a link to this answer     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/77025418/edit) () Improve this answer  Follow (70:3:31e,16:c0c351b725b46cbb,10:1725174432,16:89da1a7b94fb0f1b,8:77025418,73cdb35a75ad9f8e7afae71c0f18fe26efe0a841b873a6a56b59ea284d328630)  Follow this answer to receive notifications       answered (2023-09-01 18:47:41Z) Sep 1, 2023 at 18:47   (/users/22485325/vansh-damania) (Vansh Damania's user avatar)    (/users/22485325/vansh-damania) Vansh Damania Vansh Damania (reputation score) 1 (1 bronze badge)  1  1 bronze badge        2   First of all, thank you for your reply, second, yes I did include pentester to the docker group using "sudo usermod -aG docker pentester" and then I restarted the docker service but still cannot run docker and that's why I posted my question here trying to find some answers.when I execute the command "grep '^docker:' /etc/group" I get this "docker:x:976:anasgharsa,pentester", even "groups pentester" this is what I get "pentester : pentester docker". I searched everywhere to find how can pentester run docker but I find that I need to add him to the docker group but he is already in the group – (/users/18059093/anas-gharsa) (1 reputation) Anas Gharsa  Commented (2023-09-02 10:10:26Z, License: CC BY-SA 4.0) Sep 2, 2023 at 10:10        no one can tell me how to resolve this problem?? is it that hard ?' should I give up already ? – (/users/18059093/anas-gharsa) (1 reputation) Anas Gharsa  Commented (2023-09-03 13:30:33Z, License: CC BY-SA 4.0) Sep 3, 2023 at 13:30        (Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.) Add a comment |  (Expand to show all comments on this post)          (77024144) (false) () Your Answer                                 Reminder: Answers generated by artificial intelligence tools are not allowed on Stack Overflow. (/help/gen-ai-policy) Learn more       (true)       Thanks for contributing an answer to Stack Overflow! 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