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CCE
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CCE-91902-7

Platform: cpe:/o:ubuntu:ubuntu_linux:16.04Date: (C)2018-07-09   (M)2023-07-04



The cramfs filesystem type is a compressed read-only Linux filesystem embedded in small footprint systems. A cramfs image can be used without having to first decompress the image. Rationale: Removing support for unneeded filesystem types reduces the local attack surface of the server. If this filesystem type is not needed, disable it.


Parameter:

[disable/disable with error logged/enable]


Technical Mechanism:

Edit or create the file /etc/modprobe.d/cramfs.conf and add the following line: install cramfs /bin/true

CCSS Severity:CCSS Metrics:
CCSS Score : 6.1Attack Vector: LOCAL
Exploit Score: 1.8Attack Complexity: LOW
Impact Score: 4.2Privileges Required: LOW
Severity: MEDIUMUser Interaction: NONE
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:NScope: UNCHANGED
 Confidentiality: HIGH
 Integrity: LOW
 Availability: NONE
  

References:
Resource IdReference
SCAP Repo OVAL Definitionoval:org.secpod.oval:def:46163


OVAL    1
oval:org.secpod.oval:def:46163
XCCDF    1
xccdf_org.secpod_benchmark_general_Ubuntu_16_04

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