Detections
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Amazon Linux 2023 : microcode_ctl (ALAS2023-2024-748)
high Nessus Plugin ID 209998
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Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-748 advisory.2024-12-05: CVE-2024-21820 was added to this advisory.
2024-12-05: CVE-2024-21853 was added to this advisory.
2024-12-05: CVE-2024-23918 was added to this advisory.
Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2024-21820)
Improper finite state machines (FSMs) in the hardware logic in some 4th and 5th Generation Intel(R) Xeon(R) Processors may allow an authorized user to potentially enable denial of service via local access.
(CVE-2024-21853)
Improper conditions check in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
(CVE-2024-23918)
NOTE: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01103.htmlNOTE:
https://github.com/intel/Intel-Linux-Processor-Microcode-Data- Files/releases/tag/microcode-20240910DEBIANBUG: [1081363] (CVE-2024-23984)
Incorrect behavior order in transition between executive monitor and SMI transfer monitor (STM) in some Intel(R) Processor may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2024-24853)
NOTE: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01097.htmlNOTE:
https://github.com/intel/Intel-Linux-Processor-Microcode-Data- Files/releases/tag/microcode-20240910DEBIANBUG: [1081363] (CVE-2024-24968)
Protection mechanism failure in some 3rd, 4th, and 5th Generation Intel(R) Xeon(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2024-24980)
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 'dnf update microcode_ctl --releasever 2023.6.20241028' to update your system.See Also
https://alas.aws.amazon.com/AL2023/ALAS-2024-748.html
https://alas.aws.amazon.com/faqs.html
https://alas.aws.amazon.com/cve/html/CVE-2024-21820.html
https://alas.aws.amazon.com/cve/html/CVE-2024-21853.html
https://alas.aws.amazon.com/cve/html/CVE-2024-23918.html
https://alas.aws.amazon.com/cve/html/CVE-2024-23984.html
https://alas.aws.amazon.com/cve/html/CVE-2024-24853.html
Plugin Details
Severity: High
ID: 209998
File Name: al2023_ALAS2023-2024-748.nasl
Version: 1.2
Type: local
Agent: unix
Published: 10/31/2024
Updated: 12/11/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.3
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2024-23918
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 7.7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.8
Threat Score: 5.8
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:microcode_ctl, cpe:/o:amazon:linux:2023
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/24/2024
Vulnerability Publication Date: 8/14/2024
Reference Information
CVE: CVE-2024-21820, CVE-2024-21853, CVE-2024-23918, CVE-2024-23984, CVE-2024-24853, CVE-2024-24968, CVE-2024-24980