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RHEL 7 : httpd (RHSA-2021:3856)

critical Nessus Plugin ID 154168

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Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:3856 advisory.

 - httpd: mod_proxy: SSRF via a crafted request uri-path containing unix: (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

Update the affected packages.

See Also

https://access.redhat.com/security/cve/CVE-2021-40438

https://access.redhat.com/errata/RHSA-2021:3856

https://bugzilla.redhat.com/2005117

Plugin Details

Severity: Critical

ID: 154168

File Name: redhat-RHSA-2021-3856.nasl

Version: 1.10

Type: local

Agent: unix

Published: 10/15/2021

Updated: 5/24/2023

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

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-40438

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: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:rhel_aus:7.2, cpe:/o:redhat:rhel_aus:7.3, cpe:/o:redhat:rhel_aus:7.4, cpe:/o:redhat:rhel_aus:7.6, cpe:/o:redhat:rhel_aus:7.7, cpe:/o:redhat:rhel_e4s:7.6, cpe:/o:redhat:rhel_e4s:7.7, cpe:/o:redhat:rhel_tus:7.6, cpe:/o:redhat:rhel_tus:7.7, p-cpe:/a:redhat:enterprise_linux:httpd, p-cpe:/a:redhat:enterprise_linux:httpd-devel, p-cpe:/a:redhat:enterprise_linux:httpd-manual, p-cpe:/a:redhat:enterprise_linux:httpd-tools, p-cpe:/a:redhat:enterprise_linux:mod_ldap, p-cpe:/a:redhat:enterprise_linux:mod_proxy_html, p-cpe:/a:redhat:enterprise_linux:mod_session, p-cpe:/a:redhat:enterprise_linux:mod_ssl

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/14/2021

Vulnerability Publication Date: 9/16/2021

CISA Known Exploited Vulnerability Due Dates: 12/15/2021

Reference Information

CVE: CVE-2021-40438

CWE: 918

IAVA: 2021-A-0440-S

RHSA: 2021:3856