Azure Linux 3.0 Security Update: application-gateway-kubernetes-ingress / cri-o / keda / kube-vip-cloud-provider / kured / moby-engine / multus (CVE-2022-21698)

high Nessus Plugin ID 215254

Synopsis

The remote Azure Linux host is missing one or more security updates.

Description

The version of application-gateway-kubernetes-ingress / cri-o / keda / kube-vip-cloud-provider / kured / moby-engine / multus installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-21698 advisory.

- client_golang is the instrumentation library for Go applications in Prometheus, and the promhttp package in client_golang provides tooling around HTTP servers and clients. In client_golang prior to version 1.11.1, HTTP server is susceptible to a Denial of Service through unbounded cardinality, and potential memory exhaustion, when handling requests with non-standard HTTP methods. In order to be affected, an instrumented software must use any of `promhttp.InstrumentHandler*` middleware except `RequestsInFlight`;
not filter any specific methods (e.g GET) before middleware; pass metric with `method` label name to our middleware; and not have any firewall/LB/proxy that filters away requests with unknown `method`.
client_golang version 1.11.1 contains a patch for this issue. Several workarounds are available, including removing the `method` label name from counter/gauge used in the InstrumentHandler; turning off affected promhttp handlers; adding custom middleware before promhttp handler that will sanitize the request method given by Go http.Request; and using a reverse proxy or web application firewall, configured to only allow a limited set of methods. (CVE-2022-21698)

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.

Plugin Details

Severity: High

ID: 215254

File Name: azure_linux_CVE-2022-21698.nasl

Version: 1.2

Type: local

Family: Azure Linux Local Security Checks

Published: 2/10/2025

Updated: 2/10/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2022-21698

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:keda, p-cpe:/a:microsoft:azure_linux:kube-vip-cloud-provider-debuginfo, p-cpe:/a:microsoft:azure_linux:multus, p-cpe:/a:microsoft:azure_linux:moby-engine, p-cpe:/a:microsoft:azure_linux:multus-k8s-yaml, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:cri-o-kubeadm-criconfig, p-cpe:/a:microsoft:azure_linux:kured, p-cpe:/a:microsoft:azure_linux:multus-debuginfo, p-cpe:/a:microsoft:azure_linux:kube-vip-cloud-provider, p-cpe:/a:microsoft:azure_linux:application-gateway-kubernetes-ingress, p-cpe:/a:microsoft:azure_linux:cri-o, p-cpe:/a:microsoft:azure_linux:kured-k8s-yaml

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/13/2024

Vulnerability Publication Date: 2/15/2022

Reference Information

CVE: CVE-2022-21698

Detections

Analytics