Executive Summary

Informations
Name CVE-2017-20002 First vendor Publication 2021-03-17
Vendor Cve Last vendor Modification 2021-06-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The Debian shadow package before 1:4.5-1 for Shadow incorrectly lists pts/0 and pts/1 as physical terminals in /etc/securetty. This allows local users to login as password-less users even if they are connected by non-physical means such as SSH (hence bypassing PAM's nullok_secure configuration). This notably affects environments such as virtual machines automatically generated with a default blank root password, allowing all local users to escalate privileges.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-20002

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-269 Improper Privilege Management

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1

Sources (Detail)

Source Url
MISC https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=877374
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914957
MLIST https://lists.debian.org/debian-lts-announce/2021/03/msg00020.html

Alert History

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Date Informations
2021-06-07 21:23:18
  • Multiple Updates
2021-05-04 13:01:51
  • Multiple Updates
2021-04-22 02:15:26
  • Multiple Updates
2021-03-26 12:21:50
  • First insertion