Moderate severityNVD Advisory· Published Jan 21, 2021· Updated Sep 17, 2024
Kubernetes man in the middle using LoadBalancer or ExternalIPs
CVE-2020-8554
Description
Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
k8s.io/kubernetesGo | <= 1.22.0 | — |
Affected products
1- Range: Kubernetes all versions
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
16- github.com/advisories/GHSA-j9wf-vvm6-4r9wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-8554ghsaADVISORY
- github.com/kubernetes/kubernetes/issues/97076ghsax_refsource_MISCWEB
- github.com/kubernetes/kubernetes/issues/97110ghsaWEB
- groups.google.com/g/kubernetes-security-announce/c/iZWsF9nbKE8ghsax_refsource_MISCWEB
- lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40%40%3Ccommits.druid.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/r0c76b3d0be348f788cd947054141de0229af00c540564711e828fd40@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942%40%3Ccommits.druid.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/r1975078e44d96f2a199aa90aa874b57a202eaf7f25f2fde6d1c44942@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3%40%3Ccommits.druid.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/rcafa485d63550657f068775801aeb706b7a07140a8ebbdef822b3bb3@%3Ccommits.druid.apache.org%3EghsaWEB
- lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6%40%3Ccommits.druid.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/rdb223e1b82e3d7d8e4eaddce8dd1ab87252e3935cc41c859f49767b6@%3Ccommits.druid.apache.org%3EghsaWEB
- www.oracle.com//security-alerts/cpujul2021.htmlghsax_refsource_MISCWEB
- www.oracle.com/security-alerts/cpuapr2022.htmlghsax_refsource_MISCWEB
- www.oracle.com/security-alerts/cpujan2022.htmlghsax_refsource_MISCWEB
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