CVE-2020-27780
Last modified
CVE-2020-27780 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.96% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux-Pam | Linux-Pam | >= 1.5.0, < 1.5.1 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1901094Issue Tracking, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1901094Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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