{"answers":{"affected":"It affects 9 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-10933 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2018-10933 is a critical authentication bypass vulnerability in Canonical Ubuntu Linux, published on 17 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-10933 and fix it if it is affected.\n\nWhat it is: CVE-2018-10933 is a critical authentication bypass vulnerability in Canonical Ubuntu Linux, published on 17 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-10933 exists.\n\nAffected product: Canonical Ubuntu Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2018-10933/ (Markdown: https://insights.sbomify.com/CVE-2018-10933/index.md)","id":"CVE-2018-10933","markdown":"https://insights.sbomify.com/CVE-2018-10933/index.md","name":"CVE-2018-10933","record":{"aliases":["ALPINE-CVE-2018-10933","DEBIAN-CVE-2018-10933","DLA-1548-1","DSA-4322-1","GHSA-22gf-f5w4-hrfq","MGASA-2019-0043","RHBA-2018:3712","SUSE-SU-2018:3162-1","SUSE-SU-2018:3253-1","UBUNTU-CVE-2018-10933","USN-3795-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"libssh library","requires_auth":"none","summary":"A malicious client can bypass authentication in libssh server to create channels and gain unauthorized access to the system.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"libssh","vendor":"libssh"},{"product":"oncommand_unified_manager","vendor":"netapp"},{"product":"oncommand_workflow_automation","vendor":"netapp"},{"product":"snapcenter","vendor":"netapp"},{"product":"storage_automation_store","vendor":"netapp"},{"product":"mysql_workbench","vendor":"oracle"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-592","name":"DEPRECATED: Authentication Bypass Issues"}],"description":"A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.","ecosystems":["Red Hat:rhel_extras_other:7","SUSE:Linux Enterprise Desktop 12 SP3","SUSE:Linux Enterprise Module for Basesystem 15","SUSE:Linux Enterprise Software Development Kit 12 SP3","SUSE:Linux Enterprise Workstation Extension 12 SP3"],"exploits":{"exploitdb":2,"first_seen":"2018-10-16","github_poc":39,"max_poc_stars":498,"metasploit":1,"nuclei":0,"refs":[{"date":"2018-10-17T14:14:12Z","kind":"github_poc","ref":"https://github.com/blacknbunny/CVE-2018-10933","stars":498,"title":"Spawn to shell without any credentials by using CVE-2018-10933 (LibSSH)"},{"date":"2018-10-17T23:05:10Z","kind":"github_poc","ref":"https://github.com/jobroche/libssh-scanner","stars":235,"title":"Script to identify hosts vulnerable to CVE-2018-10933"},{"date":"2018-10-17T09:01:44Z","kind":"github_poc","ref":"https://github.com/SoledaD208/CVE-2018-10933","stars":126,"title":"CVE-2018-10933 very simple POC"},{"date":"2018-10-18T19:13:45Z","kind":"github_poc","ref":"https://github.com/hackerhouse-opensource/cve-2018-10933","stars":110,"title":"cve-2018-10933 libssh authentication bypass"},{"date":"2018-10-20T00:24:04Z","kind":"github_poc","ref":"https://github.com/jas502n/CVE-2018-10933","stars":22,"title":"libssh CVE-2018-10933"},{"date":"2018-10-17T18:44:05Z","kind":"github_poc","ref":"https://github.com/kn6869610/CVE-2018-10933","stars":14,"title":"Leveraging it is a simple matter of presenting the server with the  SSH2_MSG_USERAUTH_SUCCESS message, which shows that the login already occurred without a problem.  The server expects the message SSH2_MSG_USERAUTH_REQUEST to start the authentication procedure, but by skipping it an attacker can log in without showing any credentials."},{"date":"2018-10-20T15:34:26Z","kind":"github_poc","ref":"https://github.com/Virgula0/POC-CVE-2018-10933","stars":11,"title":"LibSSH Authentication Bypass Exploit using RCE"},{"date":"2018-10-18T15:08:25Z","kind":"github_poc","ref":"https://github.com/marco-lancini/hunt-for-cve-2018-10933","stars":10,"title":"Hunt for and Exploit the libSSH Authentication Bypass (CVE-2018-10933)"}],"tier":"weaponised"},"has_fix":true,"headline":"Auth bypass in libssh","id":"CVE-2018-10933","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","netapp:oncommand_unified_manager","netapp:oncommand_workflow_automation","netapp:snapcenter","netapp:storage_automation_store","redhat:enterprise_linux"],"type":"auth_bypass","year":"2018"},"n_packages":14,"n_references":11,"next":{"headline":"Cross-site scripting in wildfly-core","id":"CVE-2018-10934"},"packages":[{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit","purl":"pkg:rpm/redhat/cockpit","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit-dashboard","purl":"pkg:rpm/redhat/cockpit-dashboard","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit-docker","purl":"pkg:rpm/redhat/cockpit-docker","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit-machines","purl":"pkg:rpm/redhat/cockpit-machines","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit-packagekit","purl":"pkg:rpm/redhat/cockpit-packagekit","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit-pcp","purl":"pkg:rpm/redhat/cockpit-pcp","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:176-4.el7"],"introduced":["0"],"last_affected":[],"package":"cockpit-storaged","purl":"pkg:rpm/redhat/cockpit-storaged","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:0.7.1-7.el7"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/redhat/libssh","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:0.7.1-7.el7"],"introduced":["0"],"last_affected":[],"package":"libssh-debuginfo","purl":"pkg:rpm/redhat/libssh-debuginfo","source":"RHBA-2018:3712"},{"ecosystem":"Red Hat:rhel_extras_other:7","fixed":["0:0.7.1-7.el7"],"introduced":["0"],"last_affected":[],"package":"libssh-devel","purl":"pkg:rpm/redhat/libssh-devel","source":"RHBA-2018:3712"},{"ecosystem":"SUSE:Linux Enterprise Desktop 12 SP3","fixed":["0.6.3-12.6.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3","source":"SUSE-SU-2018:3253-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15","fixed":["0.7.5-6.3.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015","source":"SUSE-SU-2018:3162-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP3","fixed":["0.6.3-12.6.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3","source":"SUSE-SU-2018:3253-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 12 SP3","fixed":["0.6.3-12.6.1"],"introduced":["0"],"last_affected":[],"package":"libssh","purl":"pkg:rpm/suse/libssh\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP3","source":"SUSE-SU-2018:3253-1"}],"prev":{"headline":"Command injection in lldptool","id":"CVE-2018-10932"},"products":["libssh"],"published":"2018-10-17","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHBA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["[UNKNOWN]"]},"summary":"A malicious client can bypass authentication in libssh server to create channels and gain unauthorized access to the system.","url":"https://insights.sbomify.com/CVE-2018-10933/"}