Apache < 2.4.49 Multiple Vulnerabilities

critical Nessus Plugin ID 153583

Synopsis

The remote web server is affected by a vulnerability.

Description

The version of Apache httpd installed on the remote host is prior to 2.4.49. It is, therefore, affected by a vulnerability as referenced in the 2.4.49 changelog.

- A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. (CVE-2021-40438)

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

Solution

Upgrade to Apache version 2.4.49 or later.

See Also

https://downloads.apache.org/httpd/CHANGES_2.4

https://httpd.apache.org/security/vulnerabilities_24.html

Plugin Details

Severity: Critical

ID: 153583

File Name: apache_mod_proxy_2_4_49.nasl

Version: 1.10

Type: combined

Agent: windows, macosx, unix

Family: Web Servers

Published: 9/23/2021

Updated: 4/11/2022

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-40438

VPR

Risk Factor: Critical

Score: 10

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: Critical

Base Score: 9

Temporal Score: 8.6

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

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

Vulnerability Information

CPE: cpe:/a:apache:httpd, cpe:/a:apache:http_server

Required KB Items: installed_sw/Apache

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/16/2021

Vulnerability Publication Date: 9/16/2021

CISA Known Exploited Dates: 12/15/2021

Reference Information

CVE: CVE-2021-40438

IAVA: 2021-A-0440-S