CVE-2020-27780

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1901094	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:*

Information

Published : 2020-12-17 16:15

Updated : 2020-12-28 11:11

NVD link : CVE-2020-27780

Mitre link : CVE-2020-27780

JSON object : View

CWE

CWE-287

Improper Authentication

Products Affected

linux-pam

linux-pam

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9.8 /10