CVE-2020-27780
9.8
CRITICAL
CVSS 3.1
EPSS 0.44%
Description
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.
How to fix CVE-2020-27780
To remediate CVE-2020-27780, upgrade the affected package to a fixed version below.
- Alpine/linux-pam—upgrade to 1.5.1 or later
Is CVE-2020-27780 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |