Detections
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Amazon Linux AMI : microcode_ctl (ALAS-2023-1715)
medium Nessus Plugin ID 173966
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
The version of microcode_ctl installed on the remote host is prior to 2.1-47.41. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1715 advisory.2024-02-14: CVE-2022-38090 was added to this advisory.
2024-02-01: CVE-2022-21216 was added to this advisory.
Insufficient granularity of access control in out-of-band management in some Intel(R) Atom and Intel Xeon Scalable Processors may allow a privileged user to potentially enable escalation of privilege via adjacent network access. (CVE-2022-21216)
Incorrect default permissions in some memory controller configurations for some Intel(R) Xeon(R) Processors when using Intel(R) Software Guard Extensions which may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2022-33196)
Improper isolation of shared resources in some Intel(R) Processors when using Intel(R) Software Guard Extensions may allow a privileged user to potentially enable information disclosure via local access.
(CVE-2022-38090)
Tenable has extracted the preceding description block directly from the tested product security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Run 'yum update microcode_ctl' to update your system.See Also
https://alas.aws.amazon.com/ALAS-2023-1715.html
https://alas.aws.amazon.com/faqs.html
https://alas.aws.amazon.com/cve/html/CVE-2022-21216.html
Plugin Details
Severity: Medium
ID: 173966
File Name: ala_ALAS-2023-1715.nasl
Version: 1.3
Type: local
Agent: unix
Published: 4/6/2023
Updated: 12/11/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 5.3
Vector: CVSS2#AV:A/AC:L/Au:M/C:C/I:C/A:C
CVSS Score Source: CVE-2022-21216
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:microcode_ctl, p-cpe:/a:amazon:linux:microcode_ctl-debuginfo
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 3/30/2023
Vulnerability Publication Date: 2/16/2023