CVE-2020-27780

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Summary

CVECVE-2020-27780
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-18 00:15:00 UTC
Updated2020-12-28 19:11:00 UTC
DescriptionA flaw was found in Linux-Pam in versions prior to 1.5.1 in the way it handle empty passwords for non-existing users. When the user doesn't exist PAM try to authenticate with root and in the case of an empty password it successfully authenticate.

Risk And Classification

Problem Types: CWE-287

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linux-pam Linux-pam All All All All
Application Linux-pam Linux-pam All All All All

References

ReferenceSourceLinkTags
1901094 – (CVE-2020-27780) CVE-2020-27780 pam: authentication bypass when the user doesn't exist and root password is blank MISC bugzilla.redhat.com Issue Tracking, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 501427 Alpine Linux Security Update for linux-pam
  • 501749 Alpine Linux Security Update for linux-pam
  • 504123 Alpine Linux Security Update for linux-pam
  • 900022 CBL-Mariner Linux Security Update for pam 1.3.1
  • 902848 Common Base Linux Mariner (CBL-Mariner) Security Update for pam (3699)
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