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CCE
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CCE-90982-0

Platform: cpe:/o:amazon:linux:2, cpe:/o:oracle:linux:8, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9Date: (C)2017-06-29   (M)2023-07-04



Single-user mode is intended as a system recovery method, providing a single user root access to the system by providing a boot option at startup. By default, no authentication is performed if single-user mode is selected. By default, single-user mode is protected by requiring a password and is set in '/usr/lib/systemd/system/rescue.service'.


Parameter:

[yes/no]


Technical Mechanism:

This prevents attackers with physical access from trivially bypassing security on the machine and gaining root access. Such accesses are further prevented by configuring the bootloader password.

CCSS Severity:CCSS Metrics:
CCSS Score : 6.8Attack Vector: PHYSICAL
Exploit Score: 0.9Attack Complexity: LOW
Impact Score: 5.9Privileges Required: NONE
Severity: MEDIUMUser Interaction: NONE
Vector: AV:P/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:84258
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:87847
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:72384
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:72018
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:31358


OVAL    5
oval:org.secpod.oval:def:84258
oval:org.secpod.oval:def:72384
oval:org.secpod.oval:def:31358
oval:org.secpod.oval:def:72018
...
XCCDF    4
xccdf_org.secpod_benchmark_general_RHEL_8
xccdf_org.secpod_benchmark_general_OEL_8
xccdf_org.secpod_benchmark_general_Amazon_Linux_2
xccdf_org.secpod_benchmark_general_RHEL_9
...

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