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Zafiyetler / CVE-2020-27780

kritik

CVE-2020-27780

pam: authentication bypass when the user doesn't exist and root password is blank

Yayın Değişiklik CWE 287
En geç 24 Eki 2026, 07:11 UTC tarihinden beri Trivy database'indeO derlemeden önce ne zaman girdiği kayıtlı değil.

Kaynağa göre önem derecesi

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: NVD, CBL-Mariner. Daha düşük diyenler: Red Hat (orta).

Açıklama

A 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.

Etkilenen paketler ve düzeltilmiş sürümler

KaynakPaketDüzeltildiği sürüm
CBL-Mariner 1.0pam0:1.5.1-2.cm1
alpine 3.13linux-pam1.5.1
alpine 3.14linux-pam1.5.1-r0
alpine 3.15linux-pam1.5.1-r0
alpine 3.16linux-pam1.5.1-r0
alpine 3.17linux-pam1.5.1-r0
alpine 3.18linux-pam1.5.1-r0
alpine 3.19linux-pam1.5.1-r0
alpine 3.20linux-pam1.5.1-r0
alpine 3.21linux-pam1.5.1-r0
alpine 3.22linux-pam1.5.1-r0
alpine 3.23linux-pam1.5.1-r0
16 kaynaktaki 16 kaydın hepsini göster
KaynakPaketDüzeltildiği sürüm
CBL-Mariner 1.0pam0:1.5.1-2.cm1
alpine 3.13linux-pam1.5.1
alpine 3.14linux-pam1.5.1-r0
alpine 3.15linux-pam1.5.1-r0
alpine 3.16linux-pam1.5.1-r0
alpine 3.17linux-pam1.5.1-r0
alpine 3.18linux-pam1.5.1-r0
alpine 3.19linux-pam1.5.1-r0
alpine 3.20linux-pam1.5.1-r0
alpine 3.21linux-pam1.5.1-r0
alpine 3.22linux-pam1.5.1-r0
alpine 3.23linux-pam1.5.1-r0
alpine 3.24linux-pam1.5.1-r0
alpine edgelinux-pam1.5.1-r0
root.io alpine 3.18rootio-linux-pam1.5.1-r0
root.io alpine 3.19rootio-linux-pam1.5.1-r0

Referanslar

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.