Detections
Analytics

Azure Linux 3.0 Security Update: application-gateway-kubernetes-ingress / azcopy / blobfuse2 / cert-manager / coredns (CVE-2023-45288)

high Nessus Plugin ID 215244

Synopsis

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

Description

The version of application-gateway-kubernetes-ingress / azcopy / blobfuse2 / cert-manager / coredns 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-2023-45288 advisory.

 - An attacker May cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection. (CVE-2023-45288)

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-2023-45288

Plugin Details

Severity: High

ID: 215244

File Name: azure_linux_CVE-2023-45288.nasl

Version: 1.2

Type: local

Published: 2/10/2025

Updated: 2/11/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2023-45288

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:microsoft:azure_linux:cert-manager-cmctl, p-cpe:/a:microsoft:azure_linux:coredns, p-cpe:/a:microsoft:azure_linux:azcopy, p-cpe:/a:microsoft:azure_linux:blobfuse2, p-cpe:/a:microsoft:azure_linux:cert-manager-controller, x-cpe:/o:microsoft:azure_linux, p-cpe:/a:microsoft:azure_linux:cert-manager-debuginfo, p-cpe:/a:microsoft:azure_linux:cert-manager-acmesolver, p-cpe:/a:microsoft:azure_linux:cert-manager-webhook, p-cpe:/a:microsoft:azure_linux:cert-manager-cainjector, p-cpe:/a:microsoft:azure_linux:application-gateway-kubernetes-ingress, p-cpe:/a:microsoft:azure_linux:cert-manager

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/10/2024

Vulnerability Publication Date: 4/4/2024

Reference Information

CVE: CVE-2023-45288