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CCE
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CCE-92641-0

Platform: cpe:/o:ubuntu:ubuntu_linux:18.04Date: (C)2019-11-07   (M)2023-07-04



The PermitUserEnvironment option allows users to present environment options to the ssh daemon. Rationale: Permitting users the ability to set environment variables through the SSH daemon could potentially allow users to bypass security controls (e.g. setting an execution path that has ssh executing trojand programs)


Parameter:

[yes/no]


Technical Mechanism:

Edit the /etc/ssh/sshd_config file to set the parameter as follows: PermitUserEnvironment no

CCSS Severity:CCSS Metrics:
CCSS Score : 7.4Attack Vector: LOCAL
Exploit Score: 1.4Attack Complexity: HIGH
Impact Score: 5.9Privileges Required: NONE
Severity: HIGHUser Interaction: NONE
Vector: AV:L/AC:H/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:51240


OVAL    1
oval:org.secpod.oval:def:51240
XCCDF    1
xccdf_org.secpod_benchmark_general_Ubuntu_18_04

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