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CCE
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CCE-92893-7

Platform: cpe:/o:ubuntu:ubuntu_linux:19.04Date: (C)2019-11-07   (M)2023-07-04



Limit Password Reuse The /etc/security/opasswd file stores the users' old passwords and can be checked to ensure that users are not recycling recent passwords.


Parameter:

[number of last passwords to remember]


Technical Mechanism:

Forcing users not to reuse their past 5 passwords make it less likely that an attacker will be able to guess the password. Note that these change only apply to accounts configured on the local system. Fix: Set the pam_unix.so remember parameter to 5 in /etc/pam.d/common-password: password sufficient pam_unix.so remember=5 Note: The default password setting in this document is the last 5 passwords. Change this number to conform to your site's password policy.

CCSS Severity:CCSS Metrics:
CCSS Score : 9.8Attack Vector: NETWORK
Exploit Score: 3.9Attack Complexity: LOW
Impact Score: 5.9Privileges Required: NONE
Severity: CRITICALUser Interaction: NONE
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScope: UNCHANGED
 Confidentiality: HIGH
 Integrity: HIGH
 Availability: HIGH
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:55106


OVAL    1
oval:org.secpod.oval:def:55106
XCCDF    1
xccdf_org.secpod_benchmark_general_Ubuntu_19_04

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