What’s Vulnerable › Vulnerabilities

CVE-2018-1002105

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 87.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-05 · updated 2026-06-17
• Weakness: CWE-388

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.

Affected products

• Kubernetes: from 1.0.0 through 1.9.11; from 1.10.0 through 1.10.10; from 1.11.0 through 1.11.4; from 1.12.0 through 1.12.2; 1.9.12-beta0
• NetApp Trident: all versions
• Red Hat OpenShift Container Platform 4.18: 3.2, 3.3, 3.4, 3.5, 3.6, 3.8 (+2)

References

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00041.html
• http://www.openwall.com/lists/oss-security/2019/06/28/2
• http://www.openwall.com/lists/oss-security/2019/07/06/3
• http://www.openwall.com/lists/oss-security/2019/07/06/4
• http://www.securityfocus.com/bid/106068
• https://access.redhat.com/errata/RHSA-2018:3537
• https://access.redhat.com/errata/RHSA-2018:3549
• https://access.redhat.com/errata/RHSA-2018:3551
• https://access.redhat.com/errata/RHSA-2018:3598
• https://access.redhat.com/errata/RHSA-2018:3624
• https://access.redhat.com/errata/RHSA-2018:3742
• https://access.redhat.com/errata/RHSA-2018:3752

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