Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-6.5.5.5)

critical Nessus Plugin ID 190796

Language:

Synopsis

The Nutanix AOS host is affected by multiple vulnerabilities .

Description

The version of AOS installed on the remote host is prior to 6.5.5.5. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-6.5.5.5 advisory.

- A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. This causes a problem when updating a filter bound to a class, as tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the still referenced class and allowing it to be deleted, leading to a use-after-free. We recommend upgrading past commit 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81.
(CVE-2023-4208)

- An issue in Zen 2 CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information. (CVE-2023-20593)

- An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7.
It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets.
This may result in denial of service or privilege escalation. (CVE-2023-35788)

- An authentication issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.7.7, macOS Monterey 12.6.6, macOS Ventura 13.4. An unauthenticated user may be able to access recently printed documents. (CVE-2023-32360)

- An issue was discovered in Python before 3.8.18, 3.9.x before 3.9.18, 3.10.x before 3.10.13, and 3.11.x before 3.11.5. It primarily affects servers (such as HTTP servers) that use TLS client authentication. If a TLS server-side socket is created, receives data into the socket buffer, and then is closed quickly, there is a brief window where the SSLSocket instance will detect the socket as not connected and won't initiate a handshake, but buffered data will still be readable from the socket buffer. This data will not be authenticated if the server-side TLS peer is expecting client certificate authentication, and is indistinguishable from valid TLS stream data. Data is limited in size to the amount that will fit in the buffer. (The TLS connection cannot directly be used for data exfiltration because the vulnerable code path requires that the connection be closed on initialization of the SSLSocket.) (CVE-2023-40217)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the Nutanix AOS software to the recommended version. Before upgrading: if this cluster is registered with Prism Central, ensure that Prism Central has been upgraded first to a compatible version. Refer to the Software Product Interoperability page on the Nutanix portal.

Plugin Details

Severity: Critical

ID: 190796

File Name: nutanix_NXSA-AOS-6_5_5_5.nasl

Version: 1.5

Type: local

Family: Misc.

Published: 2/20/2024

Updated: 2/17/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-4208

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 9.3

Threat Vector: CVSS:4.0/E:A

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2023-40217

Vulnerability Information

CPE: cpe:/o:nutanix:aos

Required KB Items: Host/Nutanix/Data/lts, Host/Nutanix/Data/Service, Host/Nutanix/Data/Version, Host/Nutanix/Data/arch

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/20/2024

Vulnerability Publication Date: 12/21/2022

Exploitable With

Core Impact

Reference Information

CVE: CVE-2020-22218, CVE-2022-40982, CVE-2022-43552, CVE-2023-20593, CVE-2023-20900, CVE-2023-22045, CVE-2023-22049, CVE-2023-22067, CVE-2023-22081, CVE-2023-32233, CVE-2023-32360, CVE-2023-3341, CVE-2023-34058, CVE-2023-34059, CVE-2023-35001, CVE-2023-35788, CVE-2023-3609, CVE-2023-3611, CVE-2023-3776, CVE-2023-40217, CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208

Detections

Analytics