CVE-2021-3917

Summary

CVECVE-2021-3917
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-08-23 20:15:00 UTC
Updated2022-08-26 19:15:00 UTC
DescriptionA flaw was found in the coreos-installer, where it writes the Ignition config to the target system with world-readable access permissions. This flaw allows a local attacker to have read access to potentially sensitive data. The highest threat from this vulnerability is to confidentiality.

Risk And Classification

Problem Types: CWE-276

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Redhat Coreos-installer All All All All

References

ReferenceSourceLinkTags
Change `/boot/ignition/config.ign` permissions to 0600 and delete it after provisioning · Issue #889 · coreos/fedora-coreos-tracker · GitHub MISC github.com
2018478 – (CVE-2021-3917) CVE-2021-3917 coreos-installer: restrict access permissions on /boot/ignition{,/config.ign} MISC bugzilla.redhat.com
install: restrict access permissions on /boot/ignition{,/config.ign} · coreos/coreos-installer@2a36405 · GitHub MISC github.com
Red Hat Customer Portal - Access to 24x7 support and knowledge MISC access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 239937 Red Hat Update for OpenShift Container Platform 4.8.22 (RHSA-2021:4829)
  • 770128 Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021:4829)
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