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CBL Mariner 2.0 Security Update: helm / cert-manager (CVE-2023-25165)

medium Nessus Plugin ID 172792

Synopsis

The remote CBL Mariner host is missing one or more security updates.

Description

The version of helm / cert-manager installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-25165 advisory.

 - Helm is a tool that streamlines installing and managing Kubernetes applications.`getHostByName` is a Helm template function introduced in Helm v3. The function is able to accept a hostname and return an IP address for that hostname. To get the IP address the function performs a DNS lookup. The DNS lookup happens when used with `helm install|upgrade|template` or when the Helm SDK is used to render a chart.
 Information passed into the chart can be disclosed to the DNS servers used to lookup the IP address. For example, a malicious chart could inject `getHostByName` into a chart in order to disclose values to a malicious DNS server. The issue has been fixed in Helm 3.11.1. Prior to using a chart with Helm verify the `getHostByName` function is not being used in a template to disclose any information you do not want passed to DNS servers. (CVE-2023-25165)

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

Solution

Update the affected packages.

See Also

https://nvd.nist.gov/vuln/detail/CVE-2023-25165

Plugin Details

Severity: Medium

ID: 172792

File Name: mariner_helm_CVE-2023-25165.nasl

Version: 1.2

Type: local

Published: 3/20/2023

Updated: 9/12/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.1

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

CVSS Score Source: CVE-2023-25165

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.9

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:cbl-mariner:cert-manager-cmctl, p-cpe:/a:microsoft:cbl-mariner:helm, p-cpe:/a:microsoft:cbl-mariner:cert-manager-cainjector, x-cpe:/o:microsoft:cbl-mariner, p-cpe:/a:microsoft:cbl-mariner:cert-manager, p-cpe:/a:microsoft:cbl-mariner:cert-manager-acmesolver, p-cpe:/a:microsoft:cbl-mariner:cert-manager-controller, p-cpe:/a:microsoft:cbl-mariner:cert-manager-webhook

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CBLMariner/release, Host/CBLMariner/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/14/2023

Vulnerability Publication Date: 2/8/2023

Reference Information

CVE: CVE-2023-25165