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RedhatCVE-2020-27780

HistoryDec 18, 2020 - 12:15 a.m.

CVE-2020-27780

2020-12-1800:15:14

CWE-287

redhat

web.nvd.nist.gov

cve-2020-27780

linux-pam

authentication

security vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.2

Confidence

High

EPSS

0.002

Percentile

55.6%

JSON

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 configurations

Nvd

Vulners

Node

linux-pamlinux-pamRange1.5.0–1.5.1

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

Vendor	Product	Version	CPE
linux-pam	linux-pam	*	cpe:2.3:a:linux-pam:linux-pam::::::::

CNA Affected

[
  {
    "product": "pam",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "pam 1.5.1"
      }
    ]
  }
]