Amazon Linux 2 : mod_security (ALAS-2023-2098)

high Nessus Plugin ID 177861

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of mod_security installed on the remote host is prior to 2.9.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2098 advisory.

In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

In ModSecurity before 2.9.7, FILES_TMP_CONTENT sometimes lacked the complete content. This can lead to a Web Application Firewall bypass. (CVE-2023-24021)

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 'yum update mod_security' to update your system.

Plugin Details

Severity: High

ID: 177861

File Name: al2_ALAS-2023-2098.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 7/1/2023

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-24021

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:H/A:N

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:mod_security-mlogc, p-cpe:/a:amazon:linux:mod_security, p-cpe:/a:amazon:linux:mod_security-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/21/2023

Vulnerability Publication Date: 1/20/2023

Reference Information

CVE: CVE-2022-48279, CVE-2023-24021

Detections

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