{"id":"CVE-2018-1002105","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-1002105","generatedAt":"2026-10-29T00:43:03.322Z","title":"In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to…","description":"In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.","published":"2018-12-05T21:29:00.000Z","lastModified":"2026-06-17T01:33:21.000Z","status":"Modified","sourceIdentifier":"jordan@liggitt.net","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-388"],"affected":["kubernetes/kubernetes","redhat/openshift container platform","netapp/trident"],"epss":{"score":0.86978,"percentile":0.99745,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":false,"firstPublished":"2018-12-10","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46053,"kind":"exploit","title":"Kubernetes - (Authenticated) Arbitrary Requests","url":"https://www.exploit-db.com/exploits/46053","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/remote/46053.py","file":"exploits/multiple/remote/46053.py","published":"2018-12-10","added":"2018-12-24","updated":"2018-12-24","author":"evict","type":"remote","platform":"multiple","port":null,"verified":false,"codes":["CVE-2018-1002105"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/evict/poc_CVE-2018-1002105/blob/f704f2e593fbb686b4a5799dc13e8bfcec13f3c3/poc.py"},{"edbId":46052,"kind":"exploit","title":"Kubernetes - (Unauthenticated) Arbitrary Requests","url":"https://www.exploit-db.com/exploits/46052","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/remote/46052.py","file":"exploits/multiple/remote/46052.py","published":"2018-12-10","added":"2018-12-24","updated":"2018-12-24","author":"evict","type":"remote","platform":"multiple","port":null,"verified":false,"codes":["CVE-2018-1002105"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/evict/poc_CVE-2018-1002105/blob/ed5da79aadad0049d11f89fcb9ed65f987a331a1/unauth_poc.py"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 87.0%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html","source":"jordan@liggitt.net"},{"url":"http://www.openwall.com/lists/oss-security/2019/06/28/2","source":"jordan@liggitt.net"},{"url":"http://www.openwall.com/lists/oss-security/2019/07/06/3","source":"jordan@liggitt.net"},{"url":"http://www.openwall.com/lists/oss-security/2019/07/06/4","source":"jordan@liggitt.net"},{"url":"http://www.securityfocus.com/bid/106068","tags":["Third Party Advisory","VDB Entry"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3537","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3549","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3551","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3598","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3624","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3742","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3752","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://access.redhat.com/errata/RHSA-2018:3754","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://github.com/evict/poc_CVE-2018-1002105","tags":["Exploit","Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://github.com/kubernetes/kubernetes/issues/71411","tags":["Issue Tracking","Mitigation","Patch","Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88","source":"jordan@liggitt.net"},{"url":"https://security.netapp.com/advisory/ntap-20190416-0001/","tags":["Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do","tags":["Mitigation","Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"https://www.exploit-db.com/exploits/46052/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"jordan@liggitt.net"},{"url":"https://www.exploit-db.com/exploits/46053/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"jordan@liggitt.net"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2019/06/28/2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2019/07/06/3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2019/07/06/4","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/106068","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3537","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3549","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3551","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3598","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3624","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3742","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3752","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://access.redhat.com/errata/RHSA-2018:3754","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/evict/poc_CVE-2018-1002105","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/kubernetes/kubernetes/issues/71411","tags":["Issue Tracking","Mitigation","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://groups.google.com/forum/#%21topic/kubernetes-announce/GVllWCg6L88","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20190416-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.coalfire.com/The-Coalfire-Blog/December-2018/Kubernetes-Vulnerability-What-You-Can-Should-Do","tags":["Mitigation","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46052/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/46053/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-1002105","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}