CVE-2020-27780
CRITICAL
9.8
CVSS Score
Published: December 17, 2020 at 11:55 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
2 products affected across 2 vendorsLinux-PAMPam Linux Pam
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
1.5.0 ≤ v < 1.5.1
Affected range stops below 1.5.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1901094CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-287
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